22 NEW GENERA OF $. AFRICAN PLANTS. 
erectze ; foliis oppositis, sessilibus; stipulis laciniatis; spicis 
v. capitulis terminalibus ; floribus ceruleis.— Genus SPERMA- 
COCEARUM, Knozie affine; differt floribus pentameris. 
This genus, which Dr. drnott suggests to me is allied to 
Knoxia, from which it differs in the five-parted flowers, a 
very unusual character in Spermacocee, is proposed for the 
Crusea variabilis and C. glaucescens of Meyer in Herb. Drége, 
which are clearly not referable to Crusea, Cham. and Schl. 
P. variabilis is certainly a very sportive plant, if all the speci- 
mens distributed under that name belong to it; but perhaps 
there are two species confounded ; one having the anthers 
nearly sessile and included; the other with long filaments, 
exserted. The generic name is compounded of zevre and 
avioos. 
MYRSINACEX,. 
6. CHORIPETALUM. Alph. D.C.—No. 407, of Dr. Krauss | 
Natal herbarium, appears to constitute a second species of 
this genus. The chief differences in character are, that in 
our plant the flower is 5, and not 4-parted, the ovules seem 
to be solitary, not in pairs, and the stigma is simple, not 
emarginate. 
ASCLEPIADACEJE, 
7. RAPHIONACME.— Calyx quinquepartitus. Corolla ro- 
tata, quinquefida, laciniis estivatione imbricatis; fauce 
squamis 5 planis, staminibus oppositis, apice subulato-cuspl- 
datis v. aristatis. Stamina 5, corolle fauce inserta, exserta; ` 
filamenta distincta, plana; antheree imberbes, appendiculo 
triangulari minuto terminate, basi margini stigmatis cohe- 
rentes. Pollinia 5, granulosa (granulis quadrilocularibus) 
apicibus dilatatis glandularum stigmatis applicita. Stigma 
ovatum, 5-gonum. Folliculi....? Plante humiles; radicibus ` 
tuberosis; foliis oppositis, rigidis, scabris v. pubescentibus : 
crac: TECTA et gk AA 
cymis paucifloris, interpetiolaribus; floribus parvis albo- ` 
