Materials to the revision of the genus Cranichis (Orchidaceae) in Bolivia.

The diversity of Cranichis in Bolivia is evaluated. An updated key for identifying species is provided. Morphological characteristics of 15 species of Bolivian Cranichis are presented together with illustrations of their floral segments. The occurrence of C.diphylla, C.lehmannii, and C.muscosa in this country was not confirmed. In our opinion the previously published Bolivian record for C.polyantha is doubtful. For the first time, C.badia and C.longipetiolata are reported in this country. Two new species of Cranichis are described. Marta Kolanowska, Przemysław Baranow, Sławomir Nowak, Alfredo Fuentes.

Introduction

Bolivian are the least studied in terms of biodiversity (Vásquez et al. 2003), however, novelties are being reported (e.g. Dalström 2006; Pupulin and Moreno 2018; Kolanowska et al., 2019; Pace 2020). A preliminary revision of Bolivian material has revealed some interesting discoveries within the Cranichidinae (Kolanowska et al. 2020), which are a significant element of the terrestrial neotropical flora (Salazar et al. 2009).

According to Vásquez et al. (2014) there are six genera of CranichidinaesensuDressler (1993; Lindl., Sw., R.Br., Lindl., Lindl., and Schltr.) and six of (Dressler 1990; Aa Rchb.f., Kunth, Lindl., Rchb.f., Lindl., and C.Presl.) present in Bolivia.

was described by in 1788 and typified with Sw. over 150 years later by Acuña (1939). Species of are usually terrestrial or lithophilic plants characterized by petiolate leaves, non-resupinate flowers, petals much narrower than the sepals, and cochleate lip that is often conspicuously veined or ornamented with nodules. The gynostemium of is massive, often swollen at the apex with thick, massive, spacious clinandrium and elongated, digitate, thick hamulus (Szlachetko and Rutkowski 2000; Kolanowska and Szlachetko 2015). The species grow in various habitats at altitudes ranging from 350 to over 3000 m (Carnevali and Ramírez-Morillo 2003; Cribb 2003). The geographical range of extends from USA (Florida) south to Bolivia and Argentina.

Vásquez et al. (2014) report nine species of occurring in Bolivia and listed L.O. Williams as unconfirmed taxon. However, (F. Lehm. & Kraenzl.) Schltr. catalogued by the authors, has been earlier included (as a synonym of Presl) in the genus Garay & G.A. Romero (Garay and Romero 1999). Moreover, Vásquez et al. (2014) accepted the broad concept of (Kunth) Kunth and Sw. In this recognition, the authors included several synonyms of the former species (e.g. Schltr., Schltr., Schltr., Schltr., and Schltr). Schltr., Schltr., and Schltr. are accepted as synonyms of In addition, three species of Rchb. f., Schltr., and Garay were reported as occurring in Bolivia by Jiménez-Pérez (2011).

Recent research on resulted in the description of numerous new species from the Northern Andes (e.g. Kolanowska and Szlachetko 2014; Kolanowska and Szlacheko 2019; Szlachetko and Kolanowska 2019) and in this study the diversity of this genus in Bolivia has been evaluated.

Materials and methods

Herbaria acronyms used in this paper follow Thiers (2020). During the research on over 400 specimens deposited in the herbaria: AAU, AMES, BM, C, CAY, CUVC, COL, FMB, K, LPB, MO, NY, P, PSO, RENZ, RPSC, UGDA, US, VALLE, and W were examined. Morphological characteristics of Bolivian species were prepared based exclusively on material collected in Bolivia and deposited in LPB, MO, and AMES. The morphological variation of Colombian and Ecuadorian species of has been described by Szlachetko and Kolanowska (2019). Specimens examined from outside Bolivia are listed in Kolanowska and Szlachetko 2013, 2019; Szlachetko and Kolanowska 2013, 2019, and books of Szlachetko 2016; Szlachetko and Kolanowska 2020. The list of species of Bolivian examined in this study is provided in Supplementary Information (Annex 1). Information on the habitats of Bolivian was gathered during field studies and from the data on herbarium labels. Characteristics of species that are reported from Bolivia, but not confirmed or examined in this study, were prepared based on specimens collected in other regions, as well as the literature.

All herbarium specimens were examined in the standard way. The size and shape of the leaves and length of the scape were studied first. Then the details of the inflorescence (e.g. form of the floral bracts and ovaries) were examined. Three flowers from the middle part of the inflorescence were studied. The floral segments were observed under a stereoscopic microscope, after softening the flowers in boiling water.

Only those localities that could be identified based on information on the labels of the herbarium specimens were included in the distribution maps compiled using ArcGis 10.6 (Esri, Redlands, CA, USA).

Nomenclature

The electronic version of this article in portable document format is a published work according to the International Code of Nomenclature for algae, fungi and plants (Turland et al. 2018) and hence the new names contained in the electronic version are effectively published under that Code. In addition, new names included in this work that were issued with identifiers by IPNI will eventually be made available to the Global Names Index. The IPNI Life Science Identifiers (LSIDs) can be obtained and the associated information viewed using any standard web browser by appending the LSID contained in this publication to the prefix http://ipni.org/. The online version of this paper is archived and available from the following digital repositories: PeerJ, PubMed Central, and CLOCKSS.

Results

Here the characteristics of 15 Bolivian are presented. The occurrence of , , and in this country was not confirmed as we were not able to find reference material in the collection of Vasquez deposited in LPB. Moreover, in our opinion the previously published Bolivian record for is doubtful and is discussed below. Two new species of are described in this paper and for the first time we are reporting the occurrence of and in Bolivia. While both Schweinfurth (1958) and Vásquez et al. (2014) accepted the name (Poepp. & Endl.) Cogn., in our opinion this taxon should be classified within R.Br.

Taxonomic treatment

Key to Bolivian

Schltr., Repert. Spec. Nov. Regni Veg. Beih. 7: 58. 1920.

6FE614A8-092B-5F45-A631-01B2982FFD28

Type.

COLOMBIA. Madero 3 (B†; lectotype, designated by Garay (1978: 191): AMES–drawing).

Diagnosis.

Plants 24 cm tall, erect. Leaf 1, basal, petiolate; petiole 12 cm long, narrow, canaliculate; blade 9 cm long, 7 cm wide, obliquely elliptical, acuminate, base cordate. Scape glabrous, enclosed in 4 non-foliaceous sheaths. Inflorescence 2.5 cm long, subdensely many-flowered. Flowers small, glabrous. Floral bracts 4.8 mm long, lanceolate, obtuse. Pedicellate ovary 5.0 mm long, glabrous. Dorsal sepal 3.7 mm long, 1.0 mm wide, oblong-elliptical, obtuse, 1-veined. Petals 3.1 mm long, 1.1 mm wide, obliquely ligulate-oblanceolate, obtuse, long cilia on both margins, 1-veined. Lateral sepals 3.1 mm long, 1.5 mm wide, obliquely elliptic-ovate, subacuminate, 1-veined. Lip 2.8 mm long, 2.1 mm wide, concave in the centre, subsessile, elliptic-obovate, minutely apiculate; disc with 3 thickened, dendritic branching veins. Gynostemium 1.3 mm long. Fig. 1.

Figure 1.

Schltr. A Ovary and floral bract. B Floral bract. C Dorsal sepal. D Petal. E Lateral sepal. F Lip. Drawn by P. Baranow from R. Vasquez et al. 1429 (LPB).

Habitat and ecology.

Terrestrial plants growing in subhumid Tucumano-Boliviano forest at an altitude of 2200 m. Flowers in February.

Representative specimen.

BOLIVIA. Santa Cruz: Prov. Vallegrande. Río San Lorenzo, entre Piraimiri y Masicurí, 2220 m. 23 February 1991, R. Vasquez et al. 1429 (LPB!). Fig. 2.

Figure 2.

Distribution of species in Bolivia. AB. C Base map provided by Natural Earth (www.naturalearthdata.com).

Notes.

This species is usually considered to be a synonym of (e.g. Garay 1978; Hamer 1985; Christenson 1991; Bogarín et al. 2014), however, the venation of the lateral sepals is a constant character that can be used to distinguish these two taxa. Lateral sepals of are always 1-veined (vs. 2- or 3-veined).

Renz ex Kolan. & Szlach., Nordic J. Bot. 32(3): 289. 2014.

0EEE3076-6E1F-545C-9353-796A5137DB10

VENEZUELA. Renz 6065 (holotype: RENZ!; isotypes: RENZ!).

Plants 28–60 cm tall. Leaf 1, basal, petiolate; petiole 10–19 cm long, narrow, canaliculate; blade 7–11 cm long, 5 cm wide, ovate-elliptical, acuminate, cuneate at the base. Scape sparsely pubescent on upper part, enclosed in 4-5, non-foliaceous sheaths. Inflorescence 6–8 cm long, cylindrical, subdensely many-flowered. Flowers brownish or greenish-yellow. Floral bracts 4.0–4.5 mm long, lanceolate, acuminate, glabrous. Pedicellate ovary 5.3–6.2 mm long, glabrous. Dorsal sepal 3.3–4.0 mm long, 1.5 mm wide, ovate, obtuse, 3-veined. Petals 3.7–4 mm long, 0.6–0.7 mm wide, falcately linear to linear-lanceolate, apex rounded, 1-veined, glabrous. Lateral sepals 4.0–4.1 mm long, 1.5–2.1 mm wide, obliquely elliptical, obtuse, 2- or 5-veined. Lip 2.9–3.6 mm long, 2.3–2.6 mm wide, concave, unguiculate, elliptic-suborbicular above, obtuse; disc 3-veined, midvein anastomosing, lateral veins branching. Gynostemium 1.5–2 mm long. Fig. 3.

Figure 3.

Renz ex Kolan. & Szlach. A Dorsal sepal. B Petal. C Lateral sepal. D Lip. Drawn by P. Baranow from L. Cayola et al. 3657 (LPB).

Terrestrial in Yungas montane humid forest with L. (), L. (), Mez (), numerous plants of Kunth () and L. (). It occurs at altitudes between 2150-2890 m. Flowers in March and May.

Representative specimens.

BOLIVIA. La Paz: Prov. B. Saavedra. Area Natural de Manejo Integrado Apolobamba, Wayrapata. , 2889 m. 8 May 2010. L. Cayola et al. 3657 (LPB!). Tarija: Prov. Cercado, cerca Victoria, 2150 m. 3 March 1986. E. Bastian 937 (LPB!). Fig. 2.

Bolivian plants are somewhat different from typical plants of Lateral sepals of Cayola et al. 3657 are 2-veined and lateral sepals of Bastian 937 are 5-veined, whereas typically has 3 veins. was described relatively recently (Kolanowska and Szlachetko 2014) and its morphological variation requires further study.

Kolan., Baranow, S. Nowak & A. Fuentes, sp. nov.

63E0620A-F4BA-5092-A46F-568E99E8FD76

urn:lsid:ipni.org:names:77233921-1

BOLIVIA. Beck 313 (holotype: LPB!).

Species similar to , but distinguished by larger leaves up to 20 cm long, 1-veined lateral sepals, spathulate-obovate petals and ciliate ovary.

Plants 50 cm tall. Leaves 3, basal, petiolate; petiole 8–10 cm long, narrow; blade 11–20 cm long, 4–6 cm wide, ovate, acute. Scape erect, enclosed in about 6, foliaceous sheaths. Inflorescence 16 cm long, conical, sublaxly many-flowered. Flowers yellowish, glabrous. Floral bracts 6.2 mm long, lanceolate, acute, microscopically ciliate. Pedicellate ovary 9.5 mm long, microscopically ciliate. Dorsal sepal 3.5 mm long, 1.5 mm wide, oblong-ovate, acuminate, obtuse, 1-veined. Petals 3.2 mm long, 1.3 mm wide, obliquely spathulate-obovate, apiculate, 1-veined. Lateral sepals 3.5 mm long, 1.7 mm wide, obliquely oblong-elliptical, subapiculate, concave near base, 1-veined. Lip 3 mm long, 2.1 mm wide, concave, subsessile, elliptical to oblong-elliptical in outline, apiculate at apex; disc deeply concave in the centre with numerous, irregularly subglobose thickenings on inner surface, veins 3, thickened. Gynostemium 2 mm long. Fig. 4.

Figure 4.

sp. nov. A Ovary and gynostemium. B Floral bract. C Dorsal sepal. D Petal. E Lateral sepal. F Lip, front view. G Lip, side view. Drawn by P. Baranow from S. G. Beck 313 et al. (LPB).

Etymology.

Dedicated to Stephan G. Beck, who collected the type specimen and is a former director of Herbario Nacional de Bolivia.

Terrestrial in Yungas humid, secondary montane forest at an altitude of ca. 1730 m. Flowers in February.

BOLIVIA. La Paz: Prov. Nor Yungas. Cotapata. Estación Biológica de Tunkini. A media hora de la EBT, cruzando l río, 1735 m. 2 February 2002. S. G. Beck 313 (LPB!). Fig. 2A, 4.

This species resembles in general flower morphology, but its petals are spathulate-obovate, widest apically and similar in shape to those of . Leaves of are smaller (up to 11 cm long), its ovary is glabrous (microscopically ciliate in ), lateral sepals are 2-veined (vs 1-veined in ) and petals are lanceolate. The comparative morphology of and is presented in Table 1.

Table 1.

Comparative morphology of and

Character	C.beckii	C.lehmannii
Leaves	3, petiole 8–10 cm long; blade 11–20 x 4–6 cm, ovate, acute	1–3, petiole 3–4(8) cm long; blade 6.5–11 x 2.8–5 cm, ovate, acute
Inflorescence	16 cm, conical, sublaxly many-flowered	2.5–10.5 cm long, conical, sublaxly many-flowered
Ovary	9.5 mm long, microscopically ciliate	6-9 mm long, almost glabrous
Floral bracts	6.2 mm long, lanceolate, acute, microscopically ciliate	4.5–8 mm long, lanceolate, acute, glabrous
Dorsal sepal	3.5 x 1.5 mm, oblong-ovate, acuminate, obtuse, 1-veined	3–4 mm x 1–1.1 mm, oblong-lanceolate to oblong ovate, acuminate, obtuse, concave, 1-veined
Lateral sepals	3.5 x 1.7 mm, obliquely oblong-elliptic, subapiculate, concave near the base, 1-veined	3.5–4 x 1.5–1.7 mm, obliquely elliptic-ovate to elliptic-lanceolate, subacute to subapiculate, concave in the center, obscurely 2-veined
Petals	3.2 x 1.3 mm, obliquely spathulate-obovate, apiculate, 1-veined	2.5–3.5 x 0.5–1.2 mm, lanceolate, somewhat oblique at base, subobtuse, 1-veined
Lip shape	3 x 2.1 mm, elliptic to oblong-elliptic in outline, apiculate at apex	3–3.3 x 1.6–2.3 mm, elliptic to oblong-elliptic in outline, obtuse at apex, lateral margins reflexed
Lip disc	with numerous, irregularly subglobose thickenings on the inner surface, veins thickened	with numerous, irregularly subglobose thickenings on the inner surface, veins thickened

(Kunth) Kunth, Syn. Pl. 1: 324. 1822.

18E7EA7D-FF2E-50B8-A6AB-E441AAB758D8

Kunth, Nov. Gen. Sp. (quarto ed.) 1: 334, t. 74. 1816.

VENEZUELA. Humboldt s.n. (lectotype, designated by Garay (1978: 191): W!).

Plants 26–54 cm tall. Leaves l–2, basal, petiolate; petiole 5–19 cm long, canaliculate; blade 4–15 cm long, 3–7.5 cm wide, oblong-ovate to elliptical, acute to acuminate, broadly rounded to subcordate at the base. Scape glabrous in lower part, glandular-pubescent above, enclosed in 3–6 non-foliaceous sheaths. Inflorescence 3.5–17 cm long, cylindrical, sublaxly to subdensely many-flowered. Flowers whitish marked with green or purple-brown, with reddish or brown lip. Floral bracts 4.2–6.0 mm long, ovate-lanceolate, ovate, acuminate to acute, glabrous. Pedicellate ovary 5.0–8.5 mm long, glabrous. Dorsal sepal 3.0–4.1 mm long, 1.2–2.0 mm wide, oblong-elliptical to ovate, obtuse, 3-5-veined (rarely 1-veined). Petals 2.8–4.1 mm long, 0.4–1.0 mm wide, obliquely narrowly-ligulate to oblanceolate, obtuse, 1-veined, margins ciliate. Lateral sepals 3.0–4.5 mm long, 1.2–2.0 mm wide, obliquely oblong-ovate to elliptic-ovate, subobtuse, 2- or 3-veined. Lip 2.5–3.2 mm long, 2.1–3.0 mm wide, gibbose at base, cochleate above, obovate to suborbicular above the base, rounded or obtuse at apex; disc with 3 thickened, dendritic branching veins. Gynostemium 1.2–2 mm long. Fig. 5–6.

Figure 5.

(Kunth) Kunth. A Dorsal sepal. B Petal. C Lateral sepal. D Lip, front view. E Lip, side view. Drawn by P. Baranow from I. Loza et al. 1621A (LPB).

Figure 6.

(Kunth) Kunth (photo by A. Fuentes).

Terrestrial in Yungas secondary submontane humid forest, montane, cloud forest, secondary forest with Aubl. () and Ruiz & Pav. (), forest with L. () and L. () and in Tucumano-Boliviano secondary submontane humid forest with O. Berg. (). Flowers in March, April, May and June. The populations of this species were recorded growing at altitudes between 1900-3000 m. According to Vásquez et al. (2014) this species occurs in the Yungas ecoregion at altitudes between 1000–3000 m.

BOLIVIA. Cochabamba: Cochabamba: Prov. Carrasco. La Siberia. January 1983. R. Vásquez et al. 792 (Herbarium Vasquezianum–Dodson and Vásquez. 1989); Sehuencas, PN Carrasco, 2100 m. 5 April 1996. P. Ibish & C. Ibish 96.0020 (LPB!), Prov. Ayopaya, 10 km Cocapata-Cotacajes, 3000 m. 9 May 1997. M. Kessler et al. 9412 (LPB!). La Paz: Prov. Nor Yungas. 2.4 km below Chuspipata on road to Chulumani, 2950 m. 4 March 1983. J. C. Solomon 9678 (LPB!). Prov. B. Saavedra. Area Natural de Manejo Integrado Apolobamba. Chulina, al frente de estancia Wikjelani, pasando por el río Sillaca. , 2760 m. 17 April 2010. A. Fuentes & R. Rodas 16115 (LPB!), Area Natural de Manejo Integrado Apolobamba. Kazu, cruzando el río Sillaca, 30 minutos bajando por el río Sillaca, al frente de la loma Wakelli. , 2788 m. 17 April 2010. I. Loza et al. 1621A (LPB!), Area Natural de Manejo Integrado Apolobamba. Paian, río Silliaca, sector Kumamita. , 2659 m. 20 April 2010. I. Loza et al. 1698 (LPB!), Prov. Franz Tamayo. Parque Nacional Madidi. Sector campamento Tanhuara, por el antiguo camino Pelechuco-Apolo, pasando el río Pelechuco. , 1905 m. 28 June 2009. A. Fuentes & D. Alanes 15018 (LPB!). Santa Cruz: Prov. Vallegrande. Vallegrande, aprox. 10 km al S por el camino a Pucará, 2260 m. 31 March 2001. A. Fuentes 2903 (LPB!). Fig. 2.

This is a widely distributed species reported from Mexico, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Ecuador, Peru, Bolivia and Argentina. Various authors have synonymized with different species, e.g. Schltr. (Davidse et al. 2020), (Garay 1978; Christenson 1991; Bogarín et al. 2014), Schltr. (Davidse et al. 2020), Schltr. (Davidse et al. 2020), (Schweinfurth 1958; Bogarín et al. 2014), Løjtnant (Bogarín et al. 2014), (Bogarín et al. 2014), Schltr. (Brako and Zarucchi 1993; Bogarín et al. 2014), Rchb. f. (Bogarín et al. 2014) and Schltr. (Garay 1978; Bogarín et al. 2014). The actual taxonomic position of most of them requires further study.

Schltr., Repert. Spec. Nov. Regni Veg. Beih. 7: 59. 1920.

C12C12C0-AE78-5ADF-B8B7-0A3A7AFEF898

COLOMBIA. Madero 14 (B†, lectotype, designated by Garay (1978: 199): AMES!–drawing).

Plants 26–29 cm tall. Leaves 2–3, basal, petiolate; petiole 3–8 cm long, narrow, canaliculate; blade 2–6 cm long, 1.6–4 cm wide, ovate, acute, base obliquely cordate to cuneate. Scape glabrous, remotely 4–5-sheathed. Inflorescence 5–12 cm long, cylindrical, subdensely many-flowered. Flowers small, glabrous. Floral bracts 3.8 mm long, ovate-lanceolate, acuminate, glabrous. Pedicellate ovary 5.5 mm long, glabrous. Dorsal sepal 3 mm long, 1.3 mm wide, ovate-lanceolate, subobtuse, 1-veined. Petals 3.1 mm long, 0.7 mm wide, obliquely lanceolate to linear-oblanceolate, subobtuse, glabrous on margins, 1-veined. Lateral sepals 3.6 mm long, 2.1 mm wide, obliquely elliptic-ovate, slightly concave at base, obtuse, 2-veined. Lip 3.1 mm long, 2 mm wide, somewhat concave, subsessile, oblong-elliptical, shortly apiculate; disc with 3 thickened, dendritic branching veins with prominent nodules. Gynostemium 1.8 mm long. Fig. 7.

Figure 7.

Schltr. A Dorsal sepal. B Petal. C Lateral sepal. D Lip, front view. E Lip, side view. Drawn by P. Baranow from F. Miranda 1236 et al. (LPB).

Terrestrial in Yungas montane secondary forest at an altitude of 1980 m. Flowers in March.

BOLIVIA. La Paz: Prov. Yungas, Challapata, pasando ladera quemada más alla de las Masdevallias, 1981 m. 4 March 2006. F. Miranda et al. 1236 (LPB!). Fig. 2.

is often considered to be a synonym of (e.g. Garay, 1978). The two species differ in leaf petiole length (usually 3-4 cm long in ) and inflorescence architecture (conical in ), but whether they are different species is doubtful and further molecular studies are needed to clarify the situation.

Sw., Prodr. 120. 1788.

334B38A6-2066-5393-8C8B-BD49CFBA954E

JAMAICA. s.n. (lectotype, designated by Garay (1978: 192): BM!; isolectotypes, LD, S!, UPS, W!; AMES! -drawing).

Plants up to 40 cm tall. Leaves 1–3, basal, often variegated, petiolate; petiole rather variable in length, up to 3 cm; blade up to 9 cm long, 4 cm wide, ovate to ovate-lanceolate, acute to subacuminate, subcordate at base. Scape slender, erect, remotely few-sheathed, glabrous below, glandular-pubescent above. Inflorescence up to 6.5 cm long, cylindrical, loosely to subdensely many-flowered. Flowers white with green veins. Floral bracts 4 mm long, ovate-lanceolate, acuminate, sparsely glandular. Pedicellate ovary up to 6 mm long, cylindrical, more or less glandular. Dorsal sepal up to 3.5 mm long, 1.6 mm wide, erect, elliptical, subacute to subobtuse, 3-veined, occasionally sparsely pubescent dorsally. Petals up to 3.1 mm long, 1 mm wide, near apex linear-oblanceolate, acute to obtuse, 1-veined, glabrous along margins. Lateral sepals up to 4 mm long, 1.6 mm wide, spreading, obliquely ovate to ovate-elliptical, acute to obtuse, 2-veined, occasionally sparsely pubescent dorsally. Lip up to 3.6 mm long, 3.2 mm wide, concave, inconspicuously subcordate at base, ovate to broadly elliptical in outline, subacute to subobtuse; disc obcordately papillose-thickened with three branching, often glandular (with nodules) veins from base to middle of lip. Gynostemium 1.3–2 mm long. Fig. 8.

Figure 8.

Sw. A Dorsal sepal. B Petal. C Lateral sepal. D Lip, front view. E Lip, side view. Drawn by N. Olędrzyńska from Killip & Smith 15946 (AMES).

According to Vásquez et al. (2014) this species occurs in the Yungas ecoregion at altitudes between 1000–1500 and 2500–3500 m.

BOLIVIA. Santa Cruz. R. Vásquez C. 2180 (herb. Vásquez, LPB).

The specimen cited by Vásquez et al. (2014) was not found in the Orchid collection in LPB and we were not able to confirm the occurrence of this species in Bolivia. The characteristics presented above were prepared based on those of Ecuadorian and Colombian plants (Szlachetko and Kolanowska 2019).

Dodson & R. Vásquez, Icon. Pl. Trop., ser. 2. 3: pl. 210. 1989.

2EEC19E7-543A-5A65-B3FE-48E4CC317558

BOLIVIA. Vásquez Ch. 612 (holotype MO).

Plants 20–40 cm tall. Leaves 2, basal, petiolate; petiole 4–6 cm long, narrow, canaliculate; blade 2.8–8.0 cm long, 3.0–5 cm wide, ovate, acuminate. Scape glabrous, enclosed in about 4–5 non-foliaceous sheaths. Inflorescence 4.0–10 cm long, cylindrical, sub-laxly few- to many-flowered. Flowers whitish-brown, glabrous. Floral bracts 5.0 mm long, lanceolate, acute. Pedicellate ovary 7.5 mm long, almost glabrous. Dorsal sepal 5.0–6.0 mm long, 2.3–3.0 mm wide, oblong-elliptical to ovate, obtuse, 3-veined. Petals 4.5–5.0 mm long, 1.7–2.0 mm wide, obliquely oblanceolate to spathulate, obtuse, 1-veined, glabrous. Lateral sepals 5.1–6.0 mm long, 2.3–3.5 mm wide, obliquely ovate, obscurely 2-veined. Lip 4.5–5.0 mm long, 4.5–5.0 mm wide, concave, subsessile, 3-lobed above the elliptical base, lateral lobes subquadrate, deeply laciniate, middle lobe ovate, rounded or obtuse; disc with 5 dendritic branching veins. Gynostemium 2.9 mm long. Fig. 9.

Figure 9.

Dodson & R. Vásquez. A Floral bract. B Dorsal sepal. C Petal. D Lateral sepal. E Lip. F Gynostemium. Drawn by P. Baranow from I. Jimenez 3854 & Miranda F. (LPB).

Terrestrial or epiphytic in Yungas montane wet forest at altitudes between 1880-2240 m. Flowers in March. According to Vásquez et al. (2014) this species occurs in Yungas ecoregion at altitudes between 1500–2500 m.

BOLIVIA. Cochabamba: Chapare, km 100, Cochabamba to Villa Tunari, 1880 m. 22 March 1981. R. Vásquez Ch. 612 (MO). La Paz: Prov. Nor Yungas. PN-ANMI Cotapata, sendero Sandillani al segundo campamento, 2240 m. 4 March 2006. I. Jimenez & F. Miranda 3854 (LPB!). Fig. 2.

is a Bolivian endemic easily distinguished from other species by its 3-lobed lip above an elliptical base with subquadrate, deeply laciniate, lateral lobes and ovate, rounded middle lobe.

Rchb. f., Otia Bot. Hamburg. 1: 4. 1878.

95D624BD-0285-5997-839F-1E3EFD3CA3D0

ECUADOR. Lehmann 77 (lectotype, designated by Garay (1978: 199): W!; AMES!–drawing, UGDA-DLSz!–drawing).

Plants 26–60 cm tall. Leaves 1–3, basal, petiolate; petiole 3–4(8) cm long, narrow, canaliculate; blade 6.5–11 cm long, 2.8–5 cm wide, ovate, acute. Scape erect, enclosed in 6–9 sheaths. Inflorescence 2.5–10.5 cm long, conical, sublaxly many-flowered. Flowers small, glabrous. Floral bracts 4.5–8 mm long, lanceolate, acute. Pedicellate ovary 6-9 mm long, almost glabrous. Dorsal sepal 3–4 mm long, 1–1.1 mm wide, oblong-lanceolate to oblong ovate, acuminate, obtuse, concave, 1-veined. Petals 2.5–3.5 mm long, 0.5–1.2 mm wide, lanceolate, somewhat oblique at base, subobtuse, 1-veined. Lateral sepals 3.5–4 mm long, 1.5–1.7 mm wide, obliquely elliptic-ovate to elliptic-lanceolate, subacute to subapiculate, concave in the centre, obscurely 2-veined. Lip 3–3.3 mm long, 1.6–2.3 mm wide, concave, subsessile, elliptical to oblong-elliptical in outline, obtuse at apex, lateral margins reflexed; disc with numerous, irregularly subglobose thickenings on the inner surface, veins thickened with dendritic branching. Gynostemium 1.2–1.5 mm long. Fig. 10.

Figure 10.

Rchb. f. A Dorsal sepal. B Petal. C Lateral sepal. D Lip. Redrawn by A. Król from Garay’s illustration of specimen collected by Lehmann 77 (W).

According to Vásquez et al. (2014) this species grows as an epiphyte in the Yungas ecoregion at altitudes between 2500–3500 m.

BOLIVIA. La Paz: PN-ANMI Cotapata, sendero Chojllapata, poco antes de llegar al codo del sendero. 16°14’S, 67°52’O, 2670 m. I. Jiménez 5579 (LPB–Jiménez-Pérez 2011). Fig. 2.

The specimen cited by Jiménez-Pérez (2011) was not found in the Orchid collection deposited in LPB and we were not able to confirm the occurrence of this species in Bolivia. The characteristics presented above are based on those of Ecuadorian and Colombian plants (Szlachetko and Kolanowska 2019).

C. Schweinf., Amer. Orchid Soc. Bull. 21: 268. 1952.

63AC2BFE-E73E-5D90-B33D-C3E45A866F34

PERU. Ferreyra 3120 (lectotype, designated by Garay (1978: 200): AMES!, isolectotype: USM; UGDA-DLSz!–drawing).

Plants up to 29-37 cm tall. Leaf 1, basal, petiolate; petiole 10.5–14 cm long; blade 8–10 cm long, ca. 5.0 cm wide, oblong-elliptical to ovate, oblique, acute or shortly acuminate, cuneate to subcordate at base. Scape glabrous below, finely pubescent or ciliate above, with 3–5, non-foliaceous sheaths. Inflorescence 5–7 cm long, conical, subdensely many-flowered. Flowers greenish or greenish-white. Floral bracts 4.3 mm long, lanceolate, glabrous. Pedicellate ovary 6.2 mm long, glandular. Dorsal sepal 4.1–5.0 mm long, 1.2–2.1 mm wide, ovate-lanceolate to narrowly elliptical, subacute, concave, 3-veined. Petals 3.3–4.0 mm long, 0.3–0.7 mm wide, obliquely linear-lanceolate, subobtuse, more or less oblique or curved, 1-veined, glabrous. Lateral sepals 4.2 mm long, 1.6–2 mm wide, obliquely elliptical, subacute to obtuse, 2–3-veined, margin very sparsely ciliate. Lip 3.2–3.6 mm long, 1.8–3.0 mm wide, deeply concave, basally gibbose, shortly unguiculate, obovate to suborbicular, apex rounded with a minute apiculus; disc with three transversely anastomosing veins. Gynostemium 1.8–2.0 mm long. Fig. 11.

Figure 11.

C. Schweinf. A Dorsal sepal. B Petal. C Lateral sepal. D Lip, front view. E Lip, side view. F Gynostemium. Drawn by P. Baranow from M. Mendoza & S. Acebo 912 (LPB).

Terrestrial in Yungas montane humid, and cloud forest, also in montane Tucumano-Boliviano forest, at altitudes between 2380-3000 m. Flowers in March.

Bolivia. Santa Cruz: J.M. Caballero, Comunidad Siberia, ca. 1-2 km arriba del pueblo de Siberia, sobre un camino vecinal, entrando hacia el Parque Nacional Amboro. , 3001 m. 26 March 2004. M. Mendoza & S. Acebo 912 (LPB!), Vallegrande. Tucumano-Bolivano. , 2387 m. Parada et al. 4208 (LPB!). Fig. 2.

The lip of the specimen collected by Parada et al. 4208 (LPB) differs somewhat in shape from the typical form of that of , which is obovate rather than suborbicular in outline.

Kolan., Baranow, S. Nowak & A. Fuentes, sp. nov.

343BE080-A8C4-57F4-AA81-86CC87F99845

urn:lsid:ipni.org:names:77233922-1

BOLIVIA. Bastian 937 (holotype LPB!; isotype LPB!).

Species similar to , but distinguished by 1-veined sepals, lanceolate-ovate petals that are sparsely ciliate in the lower part and by subsessile, suborbicular-obovate lip with apiculate apex.

Plants 30–40 cm tall, erect. Leaf 1, basal, petiolate; petiole 11–14 cm long, narrow, canaliculate; blade 7.8–10 cm long, 4.2–6 cm wide, ovate, apex not preserved. Scape enclosed in 4–5 sheaths, glandular towards apex. Inflorescence 6–7 cm long, cylindrical, densely many-flowered. Flowers greenish-yellow, glabrous. Floral bracts 3.3 mm long, lanceolate, acuminate, glabrous. Pedicellate ovary 4.2 mm long, glabrous. Dorsal sepal 3.7 mm long, 1.5 mm wide, oblong-elliptical, obtuse, 1-veined. Petals 3.2 mm long, 1 mm wide, obliquely lanceolate-ovate, obtuse, 1-veined, ciliate on basal 2/3. Lateral sepals 4.2 mm long, 1.3 mm wide, obliquely elliptic-ovate, subacuminate, subobtuse, 1-veined. Lip 2.4 mm long, 2 mm wide, lower part concave, subsessile, suborbicular-obovate, apex apiculate; disc with 3 thickened, dendritic branching veins. Gynostemium 2.3 mm long. Fig. 12.

Figure 12.

sp. nov. A Ovary and floral bract. B Dorsal sepal. C Petal. D Lateral sepal. E Lip, front view. F Lip, side view. Drawn by P. Baranow from E. Bastión 937 (LPB).

Dedicated to Carla Maldonado, the director of Herbario Nacional de Bolivia, for her great support during our studies in Bolivia.

Terrestrial plants growing in Tucumano-Boliviano pine () forest at an altitude of 2100 m. Flowers in March.

BOLIVIA. Tarija: Prov. Cercado, cerca Victoria, 2150 m. 3 March 1986. E. Bastian 937 (LPB!). Fig. 2B, 12.

This species resembles and Szlach. & Kolan., from which it differs in its lanceolate-ovate petals (vs. linear-oblanceolate to linear-ligulate), which are rather sparsely ciliate on the lower part (vs. equally ciliate or pilose along whole length). Unlike in those of are 1-veined. Schltr. differs from by having ligulate-oblanceolate petals, which are ciliate along both margins (vs. lanceolate-ovate, obtuse, 1-veined, ciliate on the basal 2/3). The comparative morphology of , and is presented in Table 2.

Table 2.

Comparative morphology of and .

Character	C.maldonadoana	C.barkleyi	C.pleioneura
Leaves	1, petiole 11–14 cm long; blade 7.8–10 x 4.2–6 cm, ovate, apex not preserved	1, petiole 9–17 cm long; blade 9–10 x 4–7 cm, ovate, ovate-elliptic, acute or acuminate	1, petiole 8–15 cm long; blade 7.5–15 x 3.5–7.5 cm, oblong-ovate, acute to acuminate
Inflorescence	6–7 cm long, cylindric, densely many-flowered	3–4 cm long, cylindric, loosely many-flowered	5–12 cm long, cylindric, densely many-flowered
Ovary	4.2 mm long, glabrous	8–9 mm long, glabrous	5–9 mm long, glabrous
Floral bracts	3.3 mm long, lanceolate, acuminate, glabrous	5–8 mm long, lanceolate, acuminate, glabrous	4.5–5 mm long, lanceolate, acuminate, glabrous
Dorsal sepal	3.7 x 1.5 mm, oblong-elliptic, obtuse, 1-veined	3–4.5 x 1.1–2 mm, elliptic-ovate to oblong ovate, subacute, 1-veined	3–3.8 x 1.1–1.5 mm, oblong-elliptic to elliptic-ovate, subobtuse, 3-veined
Lateral sepals	4.2 x 1.3 mm, obliquely elliptic-ovate, subacuminate, subobtuse, 1-veined	3.5–4 x 1.6–2 mm, oblong ovate, subacute, 1-veined	3–4 x 1.3–2 mm, obliquely ovate to elliptic-ovate, slightly concave at the base, subacuminate, subobtuse, 3-veined
Petals	3.2 x 1 mm, obliquely lanceolate-ovate, obtuse, 1-veined, ciliate in the basal 2/3	2.8–4 x 0.4–0.8 mm, narrowly linear to narrowly ligulate, somewhat falcate, subobtuse, 1-veined, margins sparsely pilose	2.8–3.2 x 0.4–0.8 mm, obliquely linear-oblanceolate to linear-ligulate, apex obtuse to truncate, 1-veined, ciliate along margins
Lip shape	2.4 x 2 mm, concave in the lower part, subsessile, suborbicular-obovate, apex apiculate	2.5–3.5 x 2–2.8 mm, gibbose at the base, cochleate above, shortly unguiculate, obovate in outline, rounded at apex	2.5–3.2 x 2–2.6 mm, concave in the lower part, subsessile, suborbicular-obovate, apex rounded
Lip disc	with 3 thickened, dendritic branching veins	with 3 thickened, dendritic branching veins	with 3 thickened, dendritic branching veins

Specimen Bastian 937 is heterotypic. Two specimens from this collection, which are currently included in the general collection of LPB, are . Plants deposited in the boxes with the undetermined materials in the same herbarium fit the characteristic of Renz ex Kolan. & Szlach.

Schltr., Repert. Spec. Nov. Regni Veg. Beih. 10: 38. 1922.

B1724F72-714F-593F-A8BC-1C4BB03DCED4

BOLIVIA. Mandon 1163 (lectotype, designated by Szlachetko and Kolanowska (2019: 12): AMES!; isolectotypes, BM, G, GH, NY, P, S).

Plants 40–60 cm tall. Leaves 1–2, basal, petiolate; petiole 13–16 cm long, narrow, canaliculate; blade 6–8.5 cm long, 3.7–4.4 cm wide, oblong to ovate, slightly oblique, base cordate. Scape delicate, terete, enclosed in 5-6 acuminate sheaths, apically glandular-pilose. Inflorescence 12 cm long, cylindrical, subdensely many-flowered. Flowers with tepals maroon at base, white at apex. Floral bracts about 5–5.5 mm long, narrowly lanceolate, acuminate. Pedicellate ovary about 5–5.5 mm long, fusiform- cylindrical, sparsely glandular. Sepals sparsely pubescent on the outer surface. Dorsal sepal 4.5 mm long, 1.5 mm wide, lanceolate-ovate to oblong ovate, subacute to subobtuse, 3-veined. Petals 4 mm long, 1 mm wide, oblong ligulate to oblong oblanceolate, obtuse to rounded at apex, 1-veined, margins minutely ciliate-papillate. Lateral sepals 4.5 mm long, 2 mm wide, elliptical to elliptic-ovate, subacute, 3-veined. Lip 3 mm long and wide, basally gibbose, subsessile, suborbicular-obovate to suborbicular, apically rounded; disc 3-veined, veins somewhat thickened, dendritic branching, without any nodules. Gynostemium 2 mm long. Fig. 13.

Figure 13.

Schltr. A Dorsal sepal. B Petal. C Lateral sepal. D Lip. E Gynostemium. Redrawn by A. Król from Garay’s illustration of specimen collected by Mandon 1163 (AMES).

Terrestrial plants growing in Yungas montane cloud forest at altitudes between 2600-3100 m. Flowers in April and May.

BOLIVIA. Larecaja: Sorata, 2650–3100 m. Apr–May 1860. G. Mandon 1163 (AMES!, BM, G, GH, NY, P, S). Fig. 2.

is often considered as conspecific with (e.g. Schweinfurth 1958), however, the two species differ in the ornamentation on the sepals, which in is sparsely pubescent and in glabrous.

Sw., Prodr. 120. 1788.

2CE747C0-0CCA-504C-B832-E695FD953442

Wikstr., Kongl. Vetensk. Acad. Handl. 73. 1920.

JAMAICA. s.n. (lectotype, designated by Garay (1978: 202): BM!; isolectotypes, LD, S!, W!).

Plants up to 25 cm tall, erect, strict or flexuose. Leaves 3–5, basal, rosulate, petiolate; petiole 2-3 cm long; blade 2.5–3 cm long, up to two cm wide, ovate, elliptic-ovate to oblong, acute to subobtuse. Scape slender, enclosed in five sheaths. Inflorescence up to 7.5 cm long, cylindrical, subdensely many-flowered. Flowers small, white. Floral bracts four to five mm long, lanceolate to ovate-lanceolate, acuminate. Pedicellate ovary 5-6 mm long, glabrous. Dorsal sepal 2.2 mm long, one mm wide, oblong-lanceolate to oblong-ovate, acute, 3-veined. Petals 2 mm long, 0.6 mm wide, linear-ligulate to narrowly oblanceolate, obtuse, subfalcate, margins ciliate, 1-veined. Lateral sepals 3 mm long, 1.8 mm wide, obliquely oblong-ovate to elliptic-ovate, acuminate, acute, obscurely 2-veined. Lip 2.2 mm long, 1.87 mm wide, concave, subsessile, ovate to suborbicular-ovate, shortly apiculate to acute; disc with irregular knob-like projections in the centre. Gynostemium 2 mm long. Fig. 14.

Figure 14.

Sw. A Dorsal sepal. B Petal. C Lateral sepal. D Lip, front view. E Lip, side view. Drawn by N. Olędrzyńska from Garay & Sweet 1057 (AMES).

According to Vásquez et al. (2014) this species grows as an epiphyte in humid amazon forest at altitudes between 500–1000 m. Flowers in April.

BOLIVIA. Santa Cruz: Velasco. Parque Nacional Noel Kempff Mercado. Campamento Las Gamas. Bosque de colina, 900 m. 4 April 1993. T. Killeen et al. 5050 (herb. Vásquez, MO, USZ–Vásquez et al. 2014). Fig. 2.

This is a widely distributed species. Its geographical range extends from USA (Florida) to Brazil and Bolivia. It is recognized by its foliaceous scape, minutely ciliolate petals and lip with membranous margin.

Garay, Fl. Ecuador 9: 204. 1978.

E52DCC0C-60E8-521E-BE73-9DC65050335F

COLOMBIA. Bristol 1227 (holotype AMES!).

Plants 42 cm tall. Leaves 5, basal, petiolate; petiole 4–6.5 cm long, narrow; blade 4–6 cm long, 2.2–3 cm wide, ovate to elliptical, acute, with rounded base. Scape erect, slender, ca. 5-sheathed, the lowermost foliaceous. Inflorescence 8 cm long, cylindrical, loosely many-flowered. Flowers with beige sepals, salmon petals and brown lip, greenish. Floral bracts up to 8 mm long, lanceolate, acuminate, glabrous. Pedicellate ovary 9–11 mm long, glabrous. Dorsal sepal 5.1 mm long, 2 mm wide, narrowly elliptical, obtuse, l-veined. Petals 4.5 mm long, 1.3 mm wide, linear-ligulate, rounded, l-veined, glabrous. Lateral sepals 5.3 mm long, 2.2 mm wide, obliquely ovate-elliptical, obtuse, obscurely 3-veined. Lip 4.2 mm long, 4.5 mm wide, navicular or subsaccate, sessile, triangular-obovate, truncately 3-lobed in front with triangular, obtuse middle lobe and ovate, erose lateral lobes; disc with a pair of inflated cushions which are sparsely covered with large papillae. Gynostemium 2 mm long. Fig. 15.

Figure 15.

Garay. A Dorsal sepal. B Petal. C Lateral sepal. D Lip. Drawn by P. Baranow from M. López & G. Villegas 74 (LPB).

Terrestrial in humid montane forest. It grows at an altitude of ca. 2400 m. Flowers in April. According to Vásquez et al. (2014) this species grows in the Yungas ecoregion at altitudes between 2000-3000 m.

BOLIVIA. La Paz: Prov. Nor Yungas. Parque Nacional Cotapata. Bajada Hornuni. , 2420 m. 5 April 2006. M. López & G. Villegas 74 (LPB!). Fig. 2.

This species is recorded in Colombia, Ecuador and Bolivia. Surprisingly, so far, it has not been reported from Peru.

Renz ex Kolan. & Szlach., Nordic J. Bot. 32(3): 296. 2014.

3AF3F9E1-15FD-542F-B40D-1934B7F73C8E

VENEZUELA. Renz 6139 (holotype RENZ!).

Plants 34–40 cm tall. Leaves 1–2, basal, petiolate; petiole 4–12 cm long, narrow, canaliculate; blade 6–22 long, 2.4–6 cm wide, elliptical, shortly acuminate, cuneate at base. Scape enclosed in 4-5 non-foliaceous sheaths, microscopically ciliate on upper half. Inflorescence 5(18) cm long, cylindric-conical, rather laxly many-flowered. Flowers white with green veins and lip, glabrous. Floral bracts 3.4–5 mm long, lanceolate to ovate lanceolate, acute or acuminate, sparsely glandular to almost glabrous. Pedicellate ovary up to 5.5 mm long, glabrous. Dorsal sepal 3.0–3.5 mm long, 1.5–1.7 mm wide, narrowly elliptic-obovate, obtuse, 3-veined. Petals 3.4–3.5 mm long, 0.8–1.0 mm wide, oblong-ligulate to linear-oblanceolate, obtuse, 1-veined, glabrous. Lateral sepals 3.0–3.5 mm long, 1.5–2.0 mm wide, obliquely oblong-ovate to ovate-elliptical, obtuse, 3-veined (sometimes obscurely 3-veined). Lip about 3.0 mm long, 2.1–2.2 mm wide, cochleate, subsessile, from the cuneate base suborbicular to broadly obovate, subacute at apex; disc with 3 veins, lateral veins branching, middle vein sometimes only extends to the middle part of the lip. Gynostemium 1.8–2 mm long. Fig. 16.

Figure 16.

Renz ex Kolan. & Szlach. A Dorsal sepal. B-C Petal. D Lateral sepal. E Lip. Drawn by P. Baranow from A. Fuentes & A. Macacha 16283 (LPB).

Terrestrial plants growing in Yungas montane humid forest with L. () and Ruiz & Pav. (), and in cloud forest at an altitude of ca. 3088 m. Also reported from a lower altitude of 2100 m. Flowers in April and December.

BOLIVIA. La Paz: Prov. B. Saavedra. Area Natural de Manejo Integrado Apolobamba, Paján, sector Cochapata. , 3088 m. 22 April 2010. A. Fuentes & A. Machaca 16283 (LPB!). Tarija: Prov. Cercado. Cerca Victoria, 2180 m. 24 December 1985. E. Bastian 265 (LPB!). Fig. 2.

This species resembles , but differs in having a subsessile, cuneate lip base (unguiculate in ) and floral bracts equal in length to pedicellate ovary (vs. much shorter). Unlike in the type material the margins of the lip of Bolivian specimens are not undulate.

Schltr., Repert. Spec. Nov. Regni Veg. Beih. 7: 62. 1920.

DF4509B5-E287-5F22-9091-E82811E88C35

COLOMBIA. Madero s.n. (B†).

Plants 33–36 cm tall. Leaf 1, basal, petiolate; petiole 3–4 cm long; blade 4.5–6.5 cm long, 2–3.5 cm wide, ovate, acuminate, base subrounded-cuneate, white spotted. Scape glandulous-pilose toward the apex, enclosed in 5–6 sheaths. Inflorescence 3–6 cm long, cylindrical, sublaxly to subdensely 15-flowered. Flowers greenish-white, glabrous. Floral bracts 2.1–4 mm long, ovate-lanceolate, acuminate, sparsely glandular. Pedicellate ovary 7–7.5 mm long, densely glandular-ciliate. Dorsal sepal 2.9–3 mm long, 0.8–1.2 mm wide, oblong elliptical, obtuse, 1-veined. Petals 2.9–3 mm long, 0.7–0.8 mm wide, obliquely linear-oblanceolate, obtuse, glabrous, 1-veined. Lateral sepals 3 mm long, 1.2–1.5 mm wide, obliquely elliptic-ovate, slightly concave at base, subacuminate, obtuse, obscurely 2-veined. Lip 2.5 mm long, 2.0–1.9 mm wide, slightly concave, sessile, ovate, rounded or obtuse; disc with 3 or 5 dendritic thick branching veins, with prominent nodules. Gynostemium 1–1.3 mm long. Fig. 17.

Figure 17.

Schltr. A Floral bract. B Dorsal sepal. C Petal. D Lateral sepal. E Lip. Drawn by P. Baranow from M. Nee 40653 (LPB).

Terrestrial in Tucumano-Boliviano cloud forest and disturbed forest with Phil. (), , L’Hér. (, and Kaulf. () at altitudes between 2100-2200 m. Flowers in June.

BOLIVIA. Santa Cruz: Prov. Florida, 7 km NE of Mairana. Southern limit of expanded Parque Nacional Amboró, entering from Mairana, 2200 m. 2 June 1991. M. Nee 40653 (LPB!), Prov. Vallegrande, 5 km de Loma Larga a Vallegrande. 7 June 1996. M. Kessler et al. 6352 (LPB!). Fig. 2.

This species is often considered as conspecific with (e.g. Garay 1978) from which it differs, e.g., in having a 1-veined dorsal sepal.

Excluded species

(Poepp. & Endl.) Cogn., Fl. Bras. 3(4): 248. 1895.

A4B3ABBA-23FA-59A2-ABEB-06EED53BC101

PERU. Poeppig 1724 (?). Poepp. & Endl., Nov. Gen. Sp. Pl. 2: 16, t. 123. 1838.

This species was included by Vásquez et al. (2014) in their list of Bolivian orchids as a species of , however, the original illustration of shows that the petal, gynostemium and lip are basally fused, a character not recorded for , but is present in Unfortunately, we were not able to find the specimen Vásquez C. et al. 670 to confirm its generic placement in .

Schltr., Repert. Spec. Nov. Regni Veg. Beih. 7: 61. 1920.

959D8438-6680-5077-AD2C-D776636C8E5C

COLOMBIA. Madero 22 (B†, lectotype, designated by (Garay 1978: 203): AMES!–drawing).

We examined Jimenez 5547 et al. (LPB) cited as reference material for this species in Bolivia by Jiménez-Pérez (2011) and Vásquez et al. (2014) and in our opinion it is not (Fig. 18).

Figure 18.

sp. A Floral bract. B Dorsal sepal. C Petal. D Lateral sepal. E Lip, front view. F Lip, side view. Drawn by P. Baranow from I. Jimenez 5547 et al. (LPB).

The only information about the original collection of this species is the incomplete illustration deposited in AMES. While Schlechter (1920) did not describe any ornamentation on the petals or lip of , both Garay (1978) and Bennett and Christenson (1995) identified this species based on its ciliate petals and lip covered with numerous nodules or papillose-verrucose.

Incertae sedis

I. Jimenez 5547 et al. (LPB!): this specimen was cited by Jiménez-Pérez (2011) as , however, several characters of this specimen do not fit the morphological characteristic of this species (Fig. 18). In Jimenez 5547 et al. the lip is covered with small nodules and the margins of the petals are glandular-ciliate. Currently, with only a single specimen in LPB and discrepancies between the original description of and the treatment of this taxon by Garay (1978) and Bennett and Christenson (1995), we prefer not to describe a new species based on this specimen.

Discussion

As summarized by Mace (2004) and Dubois (2003) effective conservation of species requires a good taxonomic basis. Unfortunately, the number of taxonomic studies that estimate the actual (alpha) diversity of ecosystems is declining (Wägele et al. 2011). Vásquez et al. (2003) note that there is a need for further research on orchids in Bolivia as the actual number of occurring in this country is most probably much higher than currently recorded. In this paper we provide the most complete data on Bolivian published so far. The species characteristics and dichotomous key presented will simplify the process of identification of by local botanists and improve the quality of regional checklists.

Based on this study, details of perianth segments are the most useful diagnostic characters in , however, the proper identification of some taxa is difficult without information about leaf petiole size () or inflorescence shape (). Only two Bolivian () are characterized by a distinctly 3-lobed lip with irregularly erose to erose-lancinate margins. The lip form and ornamentation, together with shape, size and ornamentation on the margins of the tepals, can be used to identify most species in this genus in Bolivia. Petals of Bolivian are 1-veined, whereas sepals can be 1-, 2-, 3- or 5-veined. Tepals can be glabrous or variously ciliate, papillate or pilose. While extensive studies on (e.g. Kolanowska and Szlachetko 2014; Szlachetko and Kolanowska 2019) indicate that the number of veins is constant within a species we noted a variation in venation in Bolivian populations, which correspond to There is a possibility that they represent an undescribed species of , but we prefer not to delimit any new species based solely on the number of veins.

Similar to many other new species of orchids (e.g. Averyanov et al. 2015; Baquero et al. 2018; Lin et al. 2020) the new taxa described here are based on single specimens. This is not surprising as numerous tropical orchids are local endemics and their geographical ranges are often limited to small patches of forests or single valleys (Koopowitz 1992; Vermeulen and Lamb 2011). Among the numerous factors that affect the geographical distribution and diversity of orchids (Dodson 2003), local radiations resulting in the evolution of numerous species of orchids in relatively small areas seems to be the most important (e.g. Jost 2004). Describing new species based on limited data is obviously risky as there is no information on the intraspecific variation in such taxa. However, considering the ongoing loss of habitats for orchids (Wraith et al. 2020) it is important to identify novel orchids before they go extinct (Swarts and Dixon 2009; Vermeulen et al. 2014), even though based on incomplete data on their morphological variation.

Conclusions

Here we present synopsis of Bolivian species of Morphological characteristics of all the species together with the illustrations of the perianth segments and the identification key will be useful for local botanists collecting orchids. The proper documentation of the distribution of rare and endangered orchids in Bolivia will help in the establishment of more advanced nature management programs.

The occurrence of 12 species of , including two new species and two new records, in Bolivia was confirmed. We did not validate the presence of and in this country. Moreover, in our opinion, the previously published Bolivian record for is doubtful and the specimen collected is an undescribed species. However, due to incongruities between the original description of and concept of this orchid presented by Garay (1978) and Bennett and Christenson (1995), we prefer not to delineate a new taxon.

1.	Margins of lateral lobes of lip irregularly erose to erose-lancinate	2
–	Lip margin entire	3
2.	Petals linear-ligulate	C.pulvinifera
–	Petals obliquely oblanceolate to clavate	C.garayana
3.	Petals glabrous	4
–	Petals ciliate, ciliate-papillate or pilose	12
4.	Lip lacks nodules on inner surface	5
–	Lip with nodules on inner surface	8
5.	Petals oblanceolate-linear	6
–	Petals linear to oblong-ligulate	7
6.	Leaf petiole up to 14 cm long, petals obliquely linear-lanceolate	C.longipetiolata
–	Leaf petiole up to 7.5 cm long, petals elliptical or ligulate from a short claw	C.polyantha (excluded)
7.	Lip base cuneate	C.silvicola
–	Lip base unguiculate	C.badia
8.	Dorsal sepal 3-veined	C.diphylla (not confirmed)
–	Dorsal sepal 1-veined	9
9.	Petals spathulate-obovate	C.beckii
–	Petals lanceolate, linear-lanceolate or linear-oblanceolate	10
10.	Ovary glandular-ciliate	C.stictophylla Schltr.
–	Ovary glabrous or almost so	11
11.	Inflorescence conical	C.lehmannii (not confirmed)
–	Inflorescence cylindrical	C.cylindrostachys
12.	Lip with nodules on inner surface	C.muscosa (not confirmed)
–	Lip lacks nodules on inner surface	13
13.	Sepals sparsely pubescent	C.mandonii
–	Sepals glabrous	14
14.	Lateral sepals 2- or 3-veined	C.ciliata
–	Lateral sepals 1-veined	15
15.	Petals ligulate-oblanceolate, ciliate along both margins	C.atrata
–	Petals lanceolate-ovate, obtuse, 1-veined, ciliate on the basal 2/3	C.maldonadoana