24 NEW GENERA OF S. AFRICAN PLANTS. 
radice maxima, tuberosa, eduli; caule pubescenti, tereti; 
foliis oppositis, petiolatis, elliptico-oblongis, mucronatis, pa- 
tentibus, glabris ; umbellis imperfectis, axillaribus, pedunculo 
subnullo, pedicellis 4-5 v. pluris, pubescentibus ; floribus 
semi-uncialibus, albis, calyce corolláque pubescentibus. 
e above analysis is taken from a specimen of Pergularia ? 
edulis, 'Thunb. (Zeyher, 965), the * Ku"' of the Hottentots, 
for which I am indebted to Mr. Zeyher, who gathered itin the 
Uitenhage district. Thunberg had never seen the open 
flower, and referred it to Pergularia, merely from its habit. 
Its root is still eaten, as he describes, by wanderers in the 
desert, and the native name at once ascertains the identity of 
our plant. Its corona is so remarkable, that I do not hesi- 
tate to propose it as the type of a new genus. 
APOCYNACE. 
9. ToxicoPHLEA. Calyx 5-partitus, laciniis lanceolatis, 
basi intus disco obsoleto annulari corolle exteriori auctis. 
orolla hypocraterimorpha, tubo calyce longé exserto, cylin- 
drico, fauce nuda subinfundibuliformi; limbo laciniis 5, 
brevibus, obliquis, imbricatis, sestivatione contortis. Sta- 
mina 5, fauce inserta, inclusa ; filamenta brevissima; anthere 
cordate, erecte, liberae, bue obtuse. Ovarium unum, 
biloculare ; ovula in loculis solitaria, dissepimento affixum. 
Stylus elongatus, filiformis, superné in cupulam membrana- 
ceam stigma conicum bifidum amplectentem expansus. 
Bacca....? Arbor; foliis oppositis, ellipticis v. elliptico- 
lanceolatis, mucronatis, glabris, breve petiolatis, marginibus 
recurvis; cymis densissimis, axillaribus; floribus albis, v. 
roseis, fragrantibus. Cortex veneno gravis, unde nomen. 
T. Thunbergii, nob. (Cestrum venenatum, Thunb. Cap. p. 
193) is the type of this genus, which is certainly allied to 
Arduina, though differing in many points; as the insertion 
of the stamens, the form of the anthers, the number of 
ovules, and the cap-like expansion of the apex ofthe style. 
