214 ON THE ASCLEPIADE.E. 



Linnean Herbarium : it therefore rests entirely upon Her- 

 mann's specimens, which, 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.pl. I, p. 1252. 



34] LEPTADENIA. 



Char. Corolla subrotata, tubo brevi, fauce coronata, 

 squamis 5 sinubus impositis : limbo barbatoy sestivatione 

 valvata. 



Corona staminea nulla. 



Anther <s libera?, apice simplices. 



Massce pollinis erectse, basi affixae, apice coarctato pellu- 

 cido ! 



Stigma muticum. 



Folliculi 



Habitus, llerbce ? perennes ? volubiles, tomento impal- 

 pabili, pulvereo, cinerascentes. Folia plana, opposita. 

 Vmbellce interpetiolares, quandoque cymosae. Corpuscula 

 stigmatis minuta. 



Patria. India Orientalis, Africa aequinoctialis 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 Forskael ; it is un- 

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

 descriptions. 



SARCOLOBUS. 



Char. Corolla subrotata, 5fida. Fauce nuda. 

 Corona staminea nulla. 

 Anther m membrana terminates . 

 353 Massce pollinis erectae, basi affixae. 

 Stigma muticum. 

 Folliculi ventricosi, carnosi. Semina marginata 1 



