214 ON THE ASCLEPIADE^. 



Linnean Herbarium : it therefore rests entirely upon Her- 

 mann's specimens, wliich, though collected 140 years ago, 

 were by maceration in water so far recovered, as to enable 

 me with certainty to determine its genus. The fourth is 

 Periploca sylvestris, Willd. sp. pi. \,p. 125r 



52. 



34] LEPTADENIA. 



Char. Corolla subrotata, tubo brevi, fauce coronata, 

 squamis 5 sinubus irapositis : limho barbato^, sestivatione 

 valvata. 



Corona staminea nulla. 



Anther <s liberse, apice simplices. 



MasscB poUinis erectse, basi affixge, apice coarctato pellu- 

 cido! 



Stigma muticum. 



Folliculi ... . 



Habitus. Herbce ? perennes ? volubiles, tomento impal- 

 pabili, pulvereo, cinerascentes. Folia plana, opposita. 

 Vmbellce interpetiolares, quandoque cymosse. Corpuscula 

 stigmatis minuta. 



Patria. India Orientalis, Africa sequinoctialis et septen- 

 trionalis. 



Obs. Of this genus I have examined three species in the 

 Banksian Herbarium, none of which are as yet described, 

 though one of them was collected by Porskael ; it is un- 

 named, however, and does not correspond with any of his 

 descriptions. 



SARCOLOBUS. 



Char. Corolla subrotata, 5f)da. Fauce nuda. 

 Corona staminea nulla. 

 Anther (B membrana terminatse. 

 35] Massce pollinis erectse, basi aflSxse. 

 Stic/ma muticum. 

 Folliculi ventricosi, carnosi, Semina marginata ! 



