ON THE ASCLEPIADEiE. 209 



Anther ce membrana terminate. 



Massce pollinis basi affixse, conniventes, compressae. 



Stigma depressum, papilla obtusa. 



Folliculi laeves. Semina comosa. 



Habitus. Caulis suffruticosus, volubilis, v. decumbens. 

 Folia opposita, carnosa, v. raembranacea. Umbella inter- 

 petiolares, multiflorse. 



Patria. India Orientalis, China, et Nova Hollandia 

 tropica. 



Obs. I have named this genus in honour of Mr. Thomas 

 Hoy, whose merits as an intelligent and successful [27 

 cultivator have been long known to the botanists of this 

 country. I have added specific characters of the only two 

 species with which I am acquainted ; but Hoy a carnosa 

 probably includes several species, which can only be deter- 

 mined from living specimens : it is also to be considered as 

 the type of the genus, Hoya viridiflora differing in some 

 degree in the structure of its corona, and considerably in 

 habit. 



1. H. carnosa, foliis ovali-oblongis carnosis, corollis 

 barbatis, coronas foliolis subtus sulcatis ! 



Asclepias carnosa, Li?m. suppl. 170. Murr. syst. veg. ed. 

 U,p. 260. Willd. sp.pl. I, p. 1264. Pers. syn. l,p. 275. 

 Sims in bot.magaz. t. 788. Smith, exot. hot. 2, p. 21, /. 70. 



Stapelia Chinensis, Lour. Cochin. \,p. 205, fide specim. 

 ab auctore missi in Herb. Banks. 



Hab. In Asise tropica? variis regionibus, etiam in Nova 

 Hollandia (ubi et in hort. Angl. v. v.) 



2. H. viridiflora, foliis ovatis acuminatis membranaceis 

 corollisque glabris, coronse foliolis exsulcis. 



Asclepias volubilis, Linn, suppl. 170*. Willd. sp. pi. I, 

 p. 1269. Pers. syn. I, p. 276. 



Watta-haka-codi, Bheed. Malab. 9, p. 25, t. 15. 



Hab. Inter frutices in nemorosis Zeylonae, /. G. Kipuuj, 

 in Herb. Banks, (ubi v. s,) 



14 



