240 FLORA NIGRITIANA. 
This outer coat of the ¢esta is usually described as an 
arillus. The hairs of the fruit are described by Vogel as 
always of a reddish-brown colour on one side of it, and green 
on the other. 
XXII. DiPTEROCARPEX. 
1. Lophira alata, Banks.— Guill. et Perr. Fl. Seneg. p. 108. t. 
24.—Sierra Leone, Don. ; Senegal. 
A low shrub, 2 to 3 feet high, according to Don. The 
structure of the wood is highly curious. 
XXIII. CrusiACEE. 
1. 'Pentadesma butyracea, G. Don, Gard. Dict. 1. p. 619.— 
Sierra Leone and St. Thomas, Don. (The Butter- and Tallow- 
tree of W. Africa.) 
XXIV. TERNSTRCGMIACE E. 
The true Ternstremiacee, now known to be so numerous m 
Tropical America and Asia, have no representative in West 
Tropical Africa since Ventenatia and Cochlospermum have been 
removed by Planchon, the one to JBizinee, the other to the 
neighbourhood of Geraniacee. The following genus, however, 
and the others forming Planchon’s group of Ixionanthee, are 
so nearly related to Ternstremiacee, that it may be convenient 
to consider them merely as a tribe of that order. T 
1. Ochthocosmus Africanus,* Hook. fil. (Tas. XXIII.) rhachidi- 
bus et pedicellis exceptis glaberrimus, foliis alternis brevissime 
petiolatis oblongis sparsis cuspidatis, cuspide callis paucis 
subglandulosis secus marginem instructo, utrinque acuti 
margine leviter incrassato et revoluto integris v. subrepandis 
rigide chartaceis nitidis subtus pallidioribus pulchre et te- 
nuissime venosis, racemis axillaribus 1-3 folio brevioribus, 
pedicellis fasciculatis petala sub fructu zequantibus rhachidi- 
busque puberulis, petalis sub fructu induratis calyce plus 
* This character is copied from that drawn up by Dr. Planchon, 
“ Icones Plantarum," t. 773. ; 
