4 ERYTHEA. 
new name ever assigned the genus, must, by the simple law 
of priority, be retained as the only valid one. In the nomen- 
clature of the American species as given in the Synoptical 
Flora, I have noted but one manifest error, the suppression 
of the earliest name for a species belonging to the Arkansas 
flora. 
V. ortnira, Raf. New Flora, n. 932 (1836): V. Arkansana, 
DC. Prodr. vii. 264 (1838). A comparison of the descrip- 
tions leaves no doubt concerning the identity. 
NOVITATES OCCIDENTALES.—I. 
By Epwarp L. Greene. 
Pulsatilla multiceps. Dwarf, with multicipitous cau- 
dex whose branches are densely clothed with persistent 
petioles of former seasons: leaves ternately dissected into 
oblong-cuneiform divisions: scapes slender and very short: 
involucral leaves cleft to the middle only, or somewhat more 
deeply, into two or three lanceolate segments: sepals villous 
on the outside, about 4 inch long, lavender-color: fruit 
unknown. 
Porcupine River, northern Alaska, J. Henry Turner, 1891. 
In habit, character of involucre and size of flowers quite 
distinct from all, even the most northerly Alaskan states of 
the common P. hirsutissima; neither answering to any of 
the European species of the genus. 
Potentilla scopulorum. Stems only a foot high, erect, 
from rather slender and proliferous horizontal rootstocks: 
herbage hirsute-pubescent and somewhat glandular, but not 
heavy-scented: leaves erect, of thinnish texture; leaflets in 
about 5 pairs, the lowest very small, all deeply incise-toothed: 
cymes contracted: corollas nearly an inch in diameter, pale 
yellow. 
Open pine woods of the Colorado Rocky Mountains, at 
middle elevations, and very common; by its horizontal and 
