FLORA NIGRITIANA. 495 
p. 856.—Cape Coast, Vogel; Senegal, Nubia, Abyssinia and 
East India. 
2. Alternanthera sessilis, Br.— Moq. in DC. Prod. 13. 2. 
p. 957.—Cape Palmas, Abóh and Fernando Po, Vogel ; 
Sierra Leone, Don; over a great portion of Africa, Asia, 
America and Australia. 
The A. denticulata, Br., from the same localities, is probably 
a mere variety of A. sessilis. The Illecebrum obliquum, Schum. 
et Thonn., from Guinea, would appear from Thonning’s descrip- 
tion to be the Alternanthera Achyrantha, an American species, 
which has spread to the Canary Islands and to some parts of 
Europe. 
l. Telanthera maritima, Mog. in DC. Prod. 13. 2. p. 364.— 
On the sands of the sea-coast, from Senegal to Benin, Vogel, 
Don and others ; eastern sea-coast of Tropical America. 
LXXXVIII. NYCTAGINES. 
l. Boérhaavia ascendens, Willd.—Chois. in DC. Prod. 13. 9. . 
p.451.—On the Quorra, Vogel (both the smooth and the 
hirsute forms) ; St. Thomas, Don ; an African species. 
2. Boérhaavia paniculata, Rich.—Chois in DC. Prod. 13. 2. 
p. 450.—On the Quorra, at Stirling, Vogel, Ansell; a species 
chiefly from Tropical America. 
This genus, so unattractive to the botanist in a dry state, 
notwithstanding the elegance of some of the species when fresh, 
had been in a lamentable state of confusion, till recently worked 
Up with great care by Choisy, in the last part of the Prodromus. 
His characters derived from the fruit are excellent, although 
Some of the species may not be so strictly geographical as he 
Supposes. Our specimens of B. paniculata agree precisely with 
the generality of what we have seen from America, although 
Some of those included under the name by Choisy (as, for 
stance, Gardner's n. 2292, from Brazil), have the fruit not 
rounded at the extremity, but truncate, with the ends of the 
ribs slightly prominent. 
The Boérhaavia verticillata, Poir. and B. dichotoma, Vahl, 
