FLORA NIGRITIANA. 237 
a native of Senegal, Nubia and the East Indies. 3. G. bicolor, 
Guill. et Perr., from Senegal. 4. G. megalocarpa, Pal. Beauv., 
from Benin. 5. G. guazumefolia, Juss., from Senegal and East 
India. 6. G. mollis, Juss., a native of Senegal and Benin ? 
l. Omphacarpus Africanus, Hook. fil.; ramulis puberulis, 
foliis breve petiolatis ovatis acuminatis super glaberrimis ni- 
tidis subter puberulis integerrimis v. obsolete serratis, fructi- 
bus oblique obovato-cuneatis compressis.— Sierra Leone ; Don. 
Frutex majusculus. Rami teretes ; cortice atro ; ramulis fusco- ` 
pubescentibus, viscosis? Folia 2 unc. longa, subcoriacea. 
Flores paniculati. Fructus 3 unc. longus. 
Of this curious plant, whose only congener is a Borneo 
species described by Korthals, I have seen but very imperfect 
specimens. Except by the somewhat different shape of the 
fruit, the two species are hardly distinguishable. It affords a 
remarkable instance of the relation between the littoral Flora of 
W. Africa and that of the hot damp Malayan Archipelago, and 
which contrasts so strongly with the Flora of the drier northern 
parts of Tropical West Africa, as Senegal, Cape Verd, &c., the 
types of whose vegetations, and many of the species themselves, 
are prolonged eastward through Sennaar, Abyssinia, and Arabia, 
to the Peninsula of India. 
Guyrnæa, Hook. fil. (nov. gen.) 
Calyz ad basim 5-partitus, laciniis oblongis, zstivatione valvatis, 
deciduis. Petala anguste lanceolata, sessilia, basinuda. Stamina 
plurima, hypogyna; filamentis gracilibus haud complanatis ; 
antheris basifixis immobilibus erectis linearibus, connectivi 
angusti productione brevissime apiculatis loculis 2 laterali-in- 
trorsis, apice rimula brevi poriformi introrsum dehiscentibus. 
Ovariumsubsessile (gynophorosaltem haud conspicuo) instylum 
apice acuto stigmaticum attenuatum, abortu (?) 3-loculare, 
loculis ad angulum internum superposite pauciovulatis, et inter 
ovula contracto-interruptis, inde in locella superposita uniovu- 
lata divisis. Fructus subcapsularis ? (fragmenta ejus tantum 
video) fusiformi-oblongus, verticaliter pluricostatus (10-cos- 
tatus, Hook. fil), mesocarpio crasso aride suberoso, locellis 
