216 ON THE ASCLEPIADE.E. 



Habitus. Frutex erectus. Folia opposita, basi supra 

 biglandulosa. Flores racemosi, laterales. 

 Patria. America meridionalis. 



ASCLEPIAS. [Asclepiadis sp. Linn. 



Char. Corolla 5partita, reflexa. 



Corona summo tubo filamentorum imposita, 5phylla, 

 foliolis cncullatis, e fun do exserentibus processuni aversum 

 corniformem. 



Anthem membrana terminate. 



MasscB pollinis compressae, apice attenuato affixa3, pen- 

 dulae. 



Stigma depressum, muticum. 



Folliculi heves. Semina comosa. 

 37] Habitus. Herbte erectae. Folia opposita, nunc alterna! 

 vel verticillata. Umbel/a? interpetiolares. 



Patria. America Septentrionalis. 



Obs. The species of this genus which I have examined, 

 are A. Syriaca, (most improperly so called, as it is a native 

 of North America only), amcena, purpurascens, variegata, 

 curassavica, nivea, elevata, parcijlora, incarnata, decumbent, 

 verticillata, tuberosa, of Willdenow's Spec. Plant., and some 

 unpublished species in the Banksian Herbarium ; and there 

 can be little doubt that A. pulchra, cilrifolia, Mexicana, 

 linaria, rubra, and all the species of Michaux, belong to it. 



GOMPHOCARPUS. [Asclepiadis sp. Linn. 



Char. Corolla opartita, reflexa. 



Corona summo tubo filamentorum imposita, 5phylla, 

 foliolis cncullatis utrinque unidentatis, intus simplicibus. 



Anther ce membrana terminatae. 



Massct pollinis compressae, apice attenuato afflxse, pen- 

 dulse. 



Stigma depressum, muticum. 



Folliculi ventricosi, spinis innocuis echinati. 



Semina comosa. 



