THE GENUS CHAMJECRISTA. 243 
cent type of Chamecrista, not rare in middle and northern 
sections of Mexico; the flowers as large as in the larger 
Species. 
** Small-flowered species; one of the petals much larger than 
the others and spreading, the other four minute, erect, forming a 
cup.—Genus NicTITELLA, Raf. 
T. C. NicTITANS, Meench, Meth. 272 (1794), excluding the 
synonym C. chamecrista, Linn. Cassia nictitans. Linn. Sp. 
380 (1753). Of the northern U. S., with about the same 
general range as C. fascicularis. 
8. C. ASPERA. Cassia aspera, Muhl. in Ell. Lk. i. 474(1821). 
Thoroughly distinct from C. nictitans, as Elliott demon- 
strated, and as Mr. Pollard has reasserted. Peculiar to the 
southern U. S. 
9. C. wupTIPINNATA. Cassia multipinnata, Pollard. Bull. 
Torr. Club. xxii. 515,t. 250 (1895). A Floridan species; and 
Mr. Pollard's variety Nashii looks as if it might well be spe- 
cifically different ; but I have not seen the living plant. 
STUDIES IN THE Composit#.—VI. 
In finishing the manuscript for part IV of the Flora Fran- 
ciscana, I found it necessary to propose a few new genera, 
and to restore certain others which had been ignored by 
American botanists of the last generation. These all re- 
quire discussion beyond what the limits of a local Flora 
seemed to admit of; and first among such is Leucosyris, only 
. 8 single species of which occurs within the territory covered 
by the volume referred to. The plants which I should refer 
to it are the following : 
.. 1. L. carnosa, Greene, Fl. Fr. 384. "Thesynonymy given 
at length in the place cited need not here be repeated. 
