FLORA NIGRITIANA. 301 
the preceding species, diffused over Africa and East India as 
far as the Philippine Islands. 
Three other Senegambian species have been described, S. lep- 
tocarpa, DC., S. pachycarpa, DC. and S. pubescens, DC., of 
Which two at least, if not all three, are also found in Nubia. 
l. Agati grandiflora, Desv., DC. Prod. 2. p. 266.—Sierra 
Leone, Don.—Introduced from E. India, where also it appears 
to be generally, if not always, more or less in a state of culti- 
vation. : 
No other genus of true Galegee, nor yet any of the large. 
tribes of Astragalee or Vicee, have as yet been found in West 
Tropical Africa, although a few have been gathered in Nubia. 
1. Stylosanthes Guineensis, Schum. et Thonn. Beskr. p. 351, et — 
G. Don, Gard. Dict. 2. p. 281 ?—S. erecta, Pal. de Beauv. 
Fl. Ow. et Ben. 2. p. 28. t. 77.— Vog. Linnea, 12. p. 68.— 
Senegambia to Guinea ; Cape Coast Castle, Grand Bassa and 
Nun River, Vogel; Whydah, Don. 
Certainly very closely allied to the West Indian S. procum- 
bens, and perhaps only a luxuriant variety. It is usually a much 
larger plant, thickly covering large patches of ground, and 
rising to the height of a foot and a half, but not really erect, on 
"Which account it may be better to adopt Schumacher's name 
than Palisot de Beauvois's. The flowers are usually more nu- 
merous than in S. procumbens, but not always so. 
The East Indian S. mucronata, Willd., slightly differing from 
the preceding, has also been found in Senegal. 
?. Stylosanthes viscosa, Sw., Vog. Linnea, 19. p. 66.—Sierra 
Leone, Don. The specimens are precisely similar to the 
common American form. s 
l. Arachis hypogea, Linn.—Abundantly cultivated in West 
Tropical Africa. In addition to Mr. Brown’s observations 
(App. Cong.) on the probable country and migrations of this 
plant, it may be stated that the discovery of several other 
Species of the same genus in Brazil is additional evidence of 
the American origin of the A. hypogea. m 
l. Zornia diphylla, Pers., var. glochidiata—Z. glochidiata, 
