| Literature DB >> 26752025 |
Alexandre Salino1, Thaís E Almeida2, Alan R Smith3.
Abstract
288 new combinations of Neotropical Thelypteridaceae taxa are proposed in order to recognize monophyletic genera, based on the results of the most recent molecular phylogeny of the family, as well as the morphological uniformity of characters for each genus. The new nomenclatural combinations correspond to 186 Amauropelta taxa, 77 species of Goniopteris, and 25 Steiropteris taxa. A key to all native Neotropical genera of the family is also presented.Entities:
Keywords: Amauropelta; Goniopteris; Steiropteris; Thelypteris; ferns
Year: 2015 PMID: 26752025 PMCID: PMC4698513 DOI: 10.3897/phytokeys.57.5641
Source DB: PubMed Journal: PhytoKeys ISSN: 1314-2003 Impact factor: 1.635
| 1 | Forked or stellate hairs present at least on the rachises and costae, and/or on the scales at apices of rhizomes, and may be present in other parts of the frond | |
| – | All hairs unbranched (hairs fasciculate, i.e., basally clustered, in some species of | |
| 2 | Laminae 1-pinnate, rarely simple; pinnae entire or with an serrate or undulate margin, rarely shallowly lobed; veins regularly anatomosing, areoles 3–25-seriate between costae and pinna margins | |
| – | Laminae 1-pinnate-pinnatifid, rarely 2-pinnate; pinnae incised 1/3 their width or more; veins meeting the margins above sinuses, or connivent at sinuses, or with 1 or 2 pairs of anastomosing below sinuses | |
| 3 | Sori usually in a single row between adjacent costules (except | |
| – | Sori usually in a double row between adjacent costules, usually round (except | |
| 4 | Sporangia setose; sori elongate, exindusiate | |
| – | Sporangia not setose, or if setose (in eight species of | |
| 5 | Pinnae broadly adnate and decurrent onto rachises in the distal half of laminae; proximal pinnae not cuneate at bases | |
| – | Pinnae neither adnate nor decurrent onto rachises, sometimes one distal pair adnate to rachises; proximal pinnae short- to long-cuneate at bases | |
| 6 | Laminae with all veins usually meeting margins above the sinuses | |
| – | Laminae with at least some of the proximal veins running to the sinuses or forming an excurrent vein to the sinuses | |
| 7 | Laminae narrowed proximally with (1-) 2−20 pairs of greatly reduced pinnae, the proximal pinnae usually auriculiform or glanduliform, rarely proximal pinnae not reduced | |
| – | Laminae usually not narrowed proximally, or only slightly so, usually lacking greatly reduced pinnae | |
| 8 | Rhizomes long-creeping; laminae 1-pinnate-pinnatifid to 2-pinnate; veins of sterile laminae 1- or 2-forked, sometimes simple in the fertile laminae | |
| – | Stems ascending to erect, rarely short-creeping; laminae 1-pinnate-pinnatifid; veins of sterile and fertile laminae simple.. | |
| 9 | Rhizomes long-creeping to 3 m or more, blackish, scaleless or nearly so | |
| – | Rhizomes short-creeping to ascending or erect, light brown, with conspicuous scales, at least at apices | |
| 10 | Cartilaginous keel (false vein) present below pinna sinuses, keels extending toward costa but not meeting it; aerophores (tuberculate or often threadlike) at pinna bases usually present, absent in a few species; indusia present or absent | |
| – | Cartilaginous keel absent below pinna sinuses; aerophores at pinna bases absent; indusia present, persistent |