ON THE ASCLEPIADEJE. 2$ 



P atria. India Orientalis et Nova Hollandia ; ra- 

 rius in America Meridionali, et Syria. 



Obs. This genus differs from Pergularia, chiefly 

 in the want of the inner laciniae of the corona : 

 it is therefore an arbitrary separation, and 

 made principally to obtain clearer characters 

 for both. The two species, with an elongated 

 stigma, are perhaps not truly of this genus, 

 but if separated from it, must form each a di- 

 stinct genus. 



It is named in honour of William Marsden, 

 Esq; F. R. S., late Secretary to the Admiralty, 

 and author of a very judicious and learned 

 " History of Sumatra," in which, though it is 

 evident that he has not made botany his par- 

 ticular study, he has had the merit of turning 

 the attention of botanists to several valuable 

 plants, among others, to the Camphor-Tree of 

 Sumatra, and to a species of this genus, Mars- 

 denia tinctoria, said to afford the best indigo in 

 that island. 



f Stigma muticum. Marsdeniae verse. 



I. M. velutina, caule volubili, foliis cordatis late 

 ovatis acuminatis tomentosis mollibus, cymis 

 umbelliformibus, fauce nuda. 

 Hab. In Nova Hollandia, intra tropicum, (ubi 

 v. v) 



