FLORA NIGRITIANA. 485 
from the American S. Jamaicensis: in both, the angles of the 
stem are blunt and often obliterated with age, and the form of 
the leaves is variable. This African plant has more of the aspect 
of the generality of the American than of the Asiatic specimens. 
Another species, S. anyustifolia, Vahl, is found in Sene- 
gambia. 
l. Lippia nodiflora, Rich.— Schau. in DC. Prod. 11. p. 585.— 
On the Gambia, Don; south of the Line, Curror; and 
throughout the Tropies and warmer regions of both hemi- 
spheres. 
l. Lantana antidotalis, Schum. et Thonn.—ScAau. in DC. Prod. 
ll. p. 598.— Cape Coast and, Accra, Vogel; Senegal and 
Guinea. 
The leaves are opposite, not ternately verticillate ; but in all 
other respects these very bad specimens agree better with the 
Character of L. antidotalis than with that of the common 
L. Camara, which they resemble. The bractez are linear, not 
subulate, but the exterior ones are fully as long as the tube of 
the corolla. 
l. Premna quadrifolia, Schum. et Thonn.—Schau. in DC. 
Prod.ll. p. 633.— Variat folis basi obtuse rotundatis v. 
etiam acutiusculis.—Accra, Don ; in Vogel's collection with- 
out the precise station. 
?. Premna (Premnos) hispida, Benth. ; ramulis cymis foliisque 
piloso-hispidis, foliis obovatis oblongisve acuminatis basi an- 
gustatis, panicula cymosa terminali subsessili, calyce 5-dentato, 
corolle tubo calyce longiore.—Sierra Leone, Don; Sene- 
gambia, Heudelot. : : 
Pili longi ferruginei ad apices ramulorum costas foliorum inflo- 
rescentiamque copiosi, in utraque pagina foliorum spani: 
Folia ad apices ramorum conferta, 3-5-pollicaria, integerrima, 
chartacea, glandulis paginæ inferioris crebris. Cyma foliis 
multo brevior, multiflora, Flores extus hirti et glanduliferi. 
Calyx vix semilineam longus, dentibus 5 mucronulatis v. 
muticis parum inzqualibus. Corolle tubus linea paullo lon- 
gior, limbus subbilabiatus, labium superius integrum, laciniis 
