92 
ially in fruit. In the true G. Rossi the bractlets are usually broadly 
ovate and about the length of the tube. It has, as a rule, a more 
hairy calyx and upper part of the pedicels. In G. ¢udinatum the 
leaves, as a rule, are much deeper cleft and with narrower segments. 
The pedicels are also much more slender and longer. The upper 
stem-leaves and bracts are much reduced, entire, or with linear seg- 
ments, while in G. Rossi the segments, as well as the stipules, are 
broad and large. 
G. humilis (R. Br.) Steud., (Sreversta humilis R. Br.), is not 
found in the United States. The G. Rossi humile of Torrey and 
Gray’s Flora and Watson’s Report of the Botany of King’s Ex- 
pedition has nothing to do with Sieversia humilis R. Br. from 
Unalaska. It is simply a more hairy G. turdinatum, not worthy 
of varietal rank, Of the true G. humile, I have seen only one 
specimen, collected by John Chapman, in 1893, also on Unalaska. 
It resembles G. Rossii, but is more coarsely hairy and the leaflets 
are broader and incised rather than divided. Whether it should 
be regarded as a variety of G. Rossi or a distinct species I cannot 
decide from the insufficient material seen. 
Two undescribed eastern Species. 
By N. L. Britton. 
“ Vio_a ATLANTIICA. 
Glabrous, or with a few scattered hairs, acaulescent; rootstock 
thick, erect. Flowering scapes very slender, 4/-8’ high, mostly 
longer than the leaves; petioles much longer than the blades; 
blades broadly ovate to reniform in outline, 1-3’ wide when ma- 
ture, deeply subpedately parted into linear or oblanceolate, acute or 
acutish lobes, the lobes with a few low distant teeth, or entire, the 
middle one somewhat the broadest; sepals linear-lanceolate, long- — 
acuminate, 4’~5”” long; petals blue, longer than the sepals, at least 
the lateral ones bearded; capsule oval-oblong, nearly 6” long, 
glabrous. 
Eastern Massachusetts to southern New Jersey, in sandy soil 
along the coast. Simulates V. delphinifolia. May—June. 
“ GERANIUM BICKNELLII. 
Similar to G. Carolinianum but taller, the stems usually more : 
slender, loosely pubescent. Leaves slender-petioled, somewhat — 
