1913] SCH ERFF—BIDENS 493 
the one at the Gray Herbarium, was mounted upon the same sheet with a 
specimen of B. reptans (L.) G. Don. On the sheet was written, evidently 
in TorreEy’s handwriting, ‘2 species!’’; while just below, Gray had written, 
“no, A. Gr.” In his diagnosis of Wricut’s plants, Gray treated this form as 
a variety of B. reptans with dissected leaves. But the fact that the leaves are 
pubescent above and strongly tomentose beneath, as well as finely dissected, 
makes it seem certain that two different species have been confused, and that 
TorREY’s assumption was correct. The species is here named in honor of 
r. N. Britton in grateful recognition of his assistance, upon this and 
several related species, in supplying data from his widely extended field knowl- 
edge of West Indian plants. 
Bidens dissecta, comb. nov.—B. reptans (L.) G. Don, var. 
dissectus O. E. Schulz, Urb. Symb. Antill. 7*:142. 1911. 
A Jamaican plant similar to the Porto Rican B. Urbanii Greenman, but 
with more finely divided leaves; also to the Cuban B. Brittonii, but with the 
more finely divided leaves not tomentose beneath. These three species, while 
perhaps congeners at a remote period in the past, and certainly related to 
B. reptans (L.) G. Don, are, in my opinion, clearly entitled to specific rank and 
should be classed as separate species. They seem quite distinct from even the 
most closely approaching forms of the highly variable B. repians (L.) G. Don, 
many specimens of which I have seen at the New. York Botanical Garden, 
through the courtesy of Dr. BRITTON. 
Bidens anthemoides, comb. nov.—Coreopsis anthemoides DC. 
Prodr. 5:573. 1836. ay 
Asa Gray (Proc. Amer. Acad. 19:15. 1884) carefully considered this 
species, but retained it in Coreopsis, the taxonomic distinctions between which 
and Bidens he admitted frequently in his writings to be highly artificial. But 
_ since the days of- Dr CaNDOLLE and Gray, botanists have very y 
inclined toward separating these two genera according to the sum total of the 
characters of each species. In the several transfers a. 
Bidens Schaffneri, comb. nov.—Coreopsis Schaffner A. Gray, 
ies allied with 
Proc. Amer. Acad. 19:15. 1884.—A perennial speci ri 
B. angustissima H. B. K., B. procera Don, and even = ae : 
Evidently placed in Coreopsis by Gray merely —— : greet 
smooth awns of the achenes. In general habit, also in the shape © 
