DICELLANDRA AND PHJEONEURON. 
crustacea, nitidula, superne granu- 
lata; raphe in seminis appendicem 
producta, cava, parietibus tenuibus ; 
hilum basilare. 
Embryo obovoideus vel ellip- 
soideus, semine multo brevior, eius 
basin haud attingens. 
Herba terrestris vel epiphytica, 
caulibus acute tetragonis, foliis 
ovatis, 5-7-nervibus, inflorescentiis 
brevibus terminalibus et ex axillis 
superioribus ortis cymosis, pauci- 
floris, floribus purpureis. 
Distributio: Africa occidentalis, 
491 
levis ; raphe ampla, solida, spongi- 
osa; hilum subbasilare. 
Embryo fero cylindricus, semini 
magis minusve equilongus. 
Suffrutices vel frutices terrestres, 
caulibus teretibus, demum lignosis, 
ramulis novellis subtetragonis, foliis 
ovatis vel lanceolatis, 5-7-nervibus, 
inflorescentiis corymboso-panicu- 
latis, breviter pedunculatis, floribus 
roseis. 
Distributio : Africa occidentalis, 
Nigeria, Fernando Po, Cameroons. a Sierra Leone ad Monbuttuland. 
1. DICELLANDRA, Hook. f. 
Species unica: D. BARTERI, Hook. f., l. c. (Pl. 19. figs. 1- 
10.)—Herba ad 4 ped. alta, in partibus novellis rufo-furfuraceo- 
pubescens, deinde glabrescens. Caulis crassus, inferne radicans. 
Folia ovata acuta vel ssepius breviter acuminata, basi acuta vel 
inferiora rotundata magnitudine valde inzequalia, majora ad 20 em. 
longa et 11 em. lata, margine magis minusve (interdum obscure) 
repando-denticulata, membranacea, supra mox glaberrima, infra 
ad nervos venasque diu vel persistenter furfuracea, nervis 7 a 
basi divergentibus vel intimis 3 breviter unitis, extimis submar- 
ginalibus, venis transversis horizontalibus 6-10 mm. remotis, 
reticulatione laxa ; petioli circiter 10 em. longi. Inflorescentiz 
vix pollicares, dense rufo-furfuracee ; bractew minute. Calyx 
6 mm. longus. Petala calyci circiter squilonga, purpurea. 
Fructus 1 cm. dimetiens. Semina 0:5-0'7 mm. longa.— Triana 
in Trans. Linn. Soc. xxviii. (1871) 81, t. 7. f. 856; Cogniaua, 
Melastom. in DC. Suites au Prod. vii. 546; Gilg in Engl. & 
Prantl, Natürl. Pflanzenf., Nachträge, 267, Ar in Engl. Monogr. 
Afrik. Pflanzenfam. ii. 33. 
Gold Coast: Tumfa Hills near Akim, on dead logs and in 
humus collected on branches (W. H. Johnson, 506!). Nigeria: 
by the Nun River, epiphytic on old trees (Barter, 20113!). 
Cameroons: Gross-Batanga, on moist shady ground in forests 
(Dinklage, 851!). 
