216 ON THE ASCLEPIADEjE. 



Habitus. Frutex erectus. Folia opposita, basi supra 

 biglandulosa. Flores racemosi, laterales. 

 Patria. America meridionalis. 



ASCLEPIAS. [Asclepiadis sp. Linn. 



Char. Corolla Spartita, reflexa. 



Corona summo tubo filamentorum imposita, 5phylla, 

 foliolis cucullatis, e fundo exserentibus processuin aversum 

 corniformem. 



Antherce membrana terminatse. 



Massa pollinis compressse, apice attenuate affixse, pen- 

 dulse. 



Stipna depressum, muticum. 



Folliculi Iseves. Semma comosa. 

 37] Habitus. Herbce erectse. Folia opposita, nunc alterna! 

 vel verticillata. Umbellm interpetiolares. 



Patria. America Septentrionalis. 



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

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

 of North America only), amaena, jmrpurascens, variegata, 

 curassavica, nivea, elevata, parviflora, incarnata, deciimbens, 

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

 unpublished species in the Banksian Plerbarium ; and there 

 can be little doubt that A. pulclira, citrifolia, Mexicana, 

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



GOMPHOCARPUS. [Asclepiadis sp. Linn. 



Char. Corolla 5partita, reflexa. 



Corona summo tubo filamentorum imposita, 5phylla, 

 foliolis cucullatis utrinque unidentatis, intus simplicibus. 



AntliercjB membrana terminatse. 



Manses pollinis compressse, apice attenuate affixse, pen- 

 dulse. 



Stic/ma depressum, muticum. 



Folliculi ventricosi, spinis innocuis echinati. 



Si'iiiina comosa. 



