SPICILEGIA GORGONEA. 131 
quently the case, to divide it into as many genera as there 
are parts of the globe or even islands wherein it occurs; 
though I doubt whether there are sufficient characters for 
doing so. But if the genus itself is cosmopolite, such is not 
the case with its species, which seem generally to be included 
in restrained limits; yet, the group being widely disse- 
minated it is not surprising that in the present instance, 
contrary to the usual rule, our plant differs from the few 
Species hitherto found on the neighbouring continent 
of Africa. However this may be, it certainly does not 
differ from the O. Princeps of Bonpland and Decandolle found 
in Brazil. This we have ascertained by attentively examining 
the specimen from the same country in the herbarium of the 
Museum of Paris. We have grounds to suppose its true 
Native country to-be Africa, whence it may have been 
brought into the New World by the negroes. 
XXVI. UMBELLIFERZ, Juss. 
Trib. nov. Tefrapleuree, Parl. 
Fructus a dorso lenticulari-compressus. Mericarpiorum juga 
4 prominentia, equalia.—Tribus ad Umbelliferas orthos- 
permas pertinens, fructus forma ad .4ngeliceas et Peuce- 
dineas accedit, sed ab utrisque omnino differt jugis 4 pro- 
minentibus, quorum 2 ex secundariis formata, nec margi- 
nalia in alam expansa.— Par. 
TeTRAPLEURA, Parl.; Calyx... Petala... Mericarpia jugis 
primariis 5, lateralibus marginantibus prominentibus, duo- 
bus aliis dorsalique obsoletis fere nullis, secundariis 4, 
duobus dorsali proximis elevatis marginantium magnitu- 
dine, duobus aliis subnullis, unde mericarpia quadrijugata. 
Vitte solitarie sub jugis quatuor prominentibus, commis- 
Sura 2 vittata, vittee omnes filiformes. Carpophorum bi- . 
partitum. Semen complanatum. Albumen carnosum, car- 
nosum, planiusculum.— Par. 
98. Tetrapleura insularis, Parl. 
Han. In insula S. Vincentii (Th. Vogel.) 
K 
