Two new combinations in the genus Distephanus Cass. (Asteraceae, Vernonieae).

New combinations are provided in Distephanus for two species from Madagascar.

Introduction

In the process of recognizing the proper limits of Cass. a number of combinations have already been made (e. g., Robinson and Khan 1986) and a number of combinations remain to be done. The following two combinations are needed now because of recent entries in GenBank. Descriptions of both species can be found in Humbert (1960).

Systematics

(Humbert) H. Rob., comb. nov. Basionym: Humbert, Bull. Soc. Bot. France 87: 346. 1940.

urn:lsid:ipni.org:names:77122348-1

(Humbert) H. Rob., comb. nov. Basionym: Humbert, Notul. Syst. (Paris) 8: 9–10. 1939.

urn:lsid:ipni.org:names:77122349-1