* 
natural Family of Plants called Composite. iri 
cosus vimineus, foliis oblongo-ovatis oppositis, floribus comosis" of 
Browne* ; while Linneus has quoted and even derived his spe- 
cific name from the same author's “ Amellus ramosus, foliis remotis 
terminalibus, fulcris longis divaricatis4;” which, instead of belong- 
ing to Bidens scandens, I believe, for the following reasons, to be 
Bidens nivea. 1st, The figure in Burmann's Thesaurus Zeylani- 
cus}, quoted by Browne for his plant, though belonging to Lavenia 
erecta, is at the same time a good representation of Bidens nivea, 
and very unlike Bidens scandens. 2dly, Browne’s description in 
most respects very well agrees with the former species, but cer- 
tainly not with Bidens scandens. And Sdly, I infer that Bidens 
nivea was actually in Browne’s Herbarium, from finding it in 
the Flora Jamaicensis published in the 5th volume of Ameenitates 
Academic, and formed chiefly from that Herbarium ; thougha 
very erroneous reference for this species is there made to Browne’s 
first Santolina, which, from the description, cannot possibly be- 
long to Bidens nivea, but is probably Verbesina gigantea. 
M. Decandolle has lately established a new genus, Salmea, con- 
sisting of Bidens scandens, Bidens hirsuta, and a third species 
which I have not examined. ‘These plants are very properly se- 
parated from Bidens by this excellent botanist, and well distin- 
guished both from that genus and from Melananthera. It is 
rather remarkable, however, that he has not thought it necessary 
to compare Salmea with Spilanthus, from which, according | to his 
description, it differs only in its imbricate involucrum. But 
as in. Spilanthus the foliola of the involucrum are not exactly 
equal, and are disposed a at least in a double series, I have in- 
‘Biche, Tats. 317. 7 EO PR HS 
1 Eb pottipiidiquniit scrophularie — foliis oppositis, Burm. Thesaur. am 
p. 95. €. 42. 
(dca 
