382 FLORA NIGRITIANA 
venisque primariis utrinque prominulis, rete venularum subter 
precipue conspicua. Stipule in vaginam brevem irregu- 
lariter fissam coalitz. Flores ad apices ramulorum solitarii. 
Calycis limbus fere pollicaris. Corolla alba, tubo 5-6 poll. 
longo, limbi laciniis sesquipollicaribus leviter obliquis paten- 
tibus. Fructus cylindraceo-fusiformis, tripollicaris, crassitie 
digitis minoris, sed maturus verosimiliter major, calycis limbo 
persistente coronatus, intus unilocularis, placentis 3 parieta- 
libus stipitatis sed haud ad medium loculi attingentibus. 
Semina compressa, pulpa mixta, in specimine nondum ma- 
tura. 
The Gardenia lutea, Fresen., an Abyssinian and Nubian 
plant, is also contained in Heudelot's collection ; and there isa 
G. nitida, Hook., from Sierra Leone, which I have not seen, 
and of whieh the ovary is undescribed, but which is never- 
theless most probably a genuine species of the same genus. 
The three ternate-leaved species enumerated in the Prodromus, 
G. triacantha, DC., from Senegambia, and G. fernifolia, Thonn., 
and G. medicinalis, Vahl, from Guinea, are entirely unknown to 
me. 
This genus, Gardenia, well characterised by De Candolle, 
and subsequently by Wight and Arnott, belongs exclusively to 
the Old World. It is readily distinguished by its unilocular 
ovarium and parietal placentze from all others, except perhaps 
some American Amaioue and Genipe, which require further 
examination. De Candolle, however, in his Prodromus, Was 
obliged to retain under Gardenia many anomalous ape 
which he found there, and of which he had no opportunity 
of examining the ovary, removing to Randia only such species 
as he had ascertained to be bilocular. Thence arose the 
confusion into which these genera have been again thrown by 
subsequent botanists. 
Amongst the bilocular species collected by authors under 
Randia, may be observed at least five groups, which may be 
either considered as distinet genera, or as sections of Randia, 
viz.: 
l. Rothmannia, remarkable for its long funnel-shaped corolla, 
