Rhodora 
JOURNAL OF 
THE NEW ENGLAND BOTANICAL CLUB 
Vol. 20. December, 1918. No. 240. 
SOME NORTH AMERICAN REPRESENTATIVES OF BRAYA 
HUMILIS. 
M. L. FERNALD. 
Braya Hwumits (C. A. Meyer) Robinson, var. novae-angliae 
(Rydberg), n. comb. P2losella novae-angliae Rydberg, Torreya, vii. 
158 (1907). Arabidopsis novac-angliae Britton in Britton and Brown, 
Ill. Fl. ed. 2, ii. 176 (1913), as to the plant of Willoughby Mountain, 
Vermont. 
In 1907 Rydberg proposed as a species the well-known plant of 
the Willoughby cliffs which has been passing as Braya humilis, trans- 
ferring it to Kosteletzky’s genus Pilosella and calling it P. novac- 
angliae, distinguished from true Braya humilis by “the more compact 
habit, the scant pubescence, the smaller flowers, the more slender pod, 
and the longer style;”’ and in 1913, Britton, putting the Willoughby 
plant into Schur’s Arabidopsis, stated that the pods are “ glabrous” 
and he included with the Willoughby material the plants of Anticosti 
and of the north shore of Lake Superior. 
The writer has not seen the Lake Superior material, but two col- 
lections from Anticosti show that there the plant has the pods quite 
as pubescent as in authentic material from the Altai of Meyer’s 
Sisymbrium humile, which formed the basis of Braya humilis Robinson. 
Similarly the plant of western Newfoundland, as well as from Severn 
River, Keewatin, and the Columbia Valley, British Columbia, closely 
matches in habit, pubescent pods, size of flowers, and all other char- 
acters the Altai plant; i. e., Braya humilis is scattered across boreal 
America and the Anticosti plant, at least as represented in the Gray 
Herbarium, does not have a glabrous pod. Furthermore, a large 
