354 FLORA NIGRITIANA. 
incompleta cinctis—Melastoma albiflorum, G. Don, Gard. 
Dict. 2. p. 764.— Sierra Leone, Vogel, Don. 
Folia 2-3-pollicaria, ad apices ramulorum approximata. Capitula 
sessilia, 1-6-flora. Bractee calyces equantes et ei appresse 
v. rarius apice breviter foliaceo-productz. ^ Calycis tubus 
ovario longior, superne contractus, lacinie lato-lanceolate, 
tubo duplo breviores, minute ciliolate. Antherarwm connec- 
tiva breviter biauriculata. 
3. Tristemma Schumacheri, Guill. et Perr. FI. Seneg. p. 311.— 
Benguelen, Curror, in Herb. Hook. ; Gaboon coast, Middleton, 
in Herb. Benth. ; Senegambia and Guinea. ; 
This species very much resembles in habit the two preceding 
and the following one, but is readily known by the single rmg 
of hairs surrounding the calyx. The T. incompletum, Br., 
from Congo, may possibly, as suggested by the authors of the 
Flora Senegambie, be a variety of the same species with slight 
traces of a second ring of hairs, which, however, I have not 
observed on the more usual form. j 
4. Tristemma coronatum, Benth.; caule ascendente minute 
strigoso, foliis ovatis supra strigosis, floribus subcapitatis, 
bracteis oblongis lanceolatisque laxiusculis apice foliaceis, 
calycis tubo globoso ciliarum annulis 4 distinctis cincto.— 
Sierra Leone, Don. 
This again, judging from a single specimen, is very near the 
three preceding ones in appearance, but remarkable from the 
four completely distinet parallel rings of hairs which surround 
the calyx at the distance of above half a line from each other. 
5. Tristemma hirtum, Vent. ez DC. Prod. 3. p. 144.— Pal. 
de Beauv. Fl. Ow. et Ben. 1. p. 94. t. 57 ; caule suffruticoso, 
ramis acute tetragonis vel quadrialatis longe barbato-pilosis, 
foliis ovatis hirsutis, floribus capitatis, bracteis imbricatis latis 
strigosis apice subfoliaceis, calycis tubo ovato ciliarum annulis 
3 distinctis cincto.—On the Nun, Vogel. : 
6. Tristemma involucratum, Benth.; caule procumbente, ramis 
longe barbato-pilosis, foliis ovatis acuminatis hirtis, floribus 
subcapitatis, bracteis scariosis appressis pilosis, calycis tubo 
