ON THE ASCLEPIADE^. 231 



PERIPLOCA. [Periploc* sp. Linn. 



Chab. Corolla rotata. Squamis 5 faucis laciniis alter- 

 natibus, aristatis. 



Mlamenta distincta. Anthera cohserentes, dorso barbatse. 



Mmsce pollinis apici dilatato corpusculi stigmatis appli- 

 citae, solitarise, e quatuor confluentibus. 



Stigma submuticum. 



Folliculi cylindracei, divaricatissimi, Iseves. Semina 

 comosa. 



Habitus. Frutices ssepius volubiles, glabri. Folia oppo- 

 sita, nitida. Flores subcorymbosi iiiterpetiolares. 



Patria. Europa Australis. Syria. Africa Septen- 

 trionalis et ^quinoctialis. 



Obs. Periploca Grseca, and laevigata, are the two prin- 

 cipal species of the genus. P. angustifolia, Billard. no 

 doubt also belongs to it; and I have seen a fourth and 

 very remarkable species brought from Sierra Leone by lbs 

 Professor Afzelius, on account of vrhich I have been obliged 

 slightly to modify the character. 



GYMNANTHERA. 



Char. Corolla hypocrateriformis. Corona faucis 5phylla. 



Filamenta distincta, fauci inserta. Anthera imberbes. 



Masses pollinis quaternatim applicitse apici dilatato cor- 

 pusculorum. 



Stigma apiculo bifido. 



Folliculi cylindracei, laeves, divaricatissimi. Semina co- 

 mosa. 



Habitus. i^Vw^ea? volubilis, glaberrimus. i^o/^a opposita, 

 nitida. Pedunculi laterales sub-dichotomi. Flores albo- 

 virescentes, imberbes. 



Patria. Nova HoUandia, intra tropicum. 



