1909. No. 8. VASCULAR PLANTS COLLECTED IN ARCTIC NORTH AMERICA. LF 
simple or forked hairs at the margins and on the upper part of the upper 
side, and b) of large, very irregularly branched stellate hairs on the under 
side, sometimes also at the margins; 3° scape often tall, slender, not 
strong and stiff, densely hairy as regards both long undivided hairs and 
shorter stellate hairs; 4° sepals hairy in the same manner as the scape. 
I have seen specimens from several places in Arctic America and 
Arctic Asia, but none from Arctic Europe (Amer.: Melville Isl.; ex itinere 
Franklini (ded. Hooker); Isl. of Neerto Nakto; Barrow River; NW-Green- 
land and W-Greenland at c. 70° 30’ Lat. N.; NE-Greenland; Asia: Cape 
Chelyuskin; Taimyr Peninsula). 
D. oligosperma Hoox. seems to be a Rocky Mountain plant. I have seen specimens 
from: Ex itinere Franklini (ded. Hooker, varr. Å & #); Alberta, near Banff (leg. Macovn, 
1891, sub nom. D. glacialis, D. alpina et D. alpina, var. hebecarpa); Elbow River (leg. 
Macoun, 1897, No. 18125, 18129); Crow Nest Pass (leg. Macoun, 1897, No. 18127); 
Bridger Mts. (by J. W. BLanxrysuip, Fl. Montanæ, No. 50, 53a). It is characterized by its 
narrow, rigid and thick, linear, carinate leaves with reflexed margins and the middle vein 
prolonged nearly to the tip of the leaf. 
Braya Sterns. & Hoppe. 
39. Braya purpurascens (R. Br.) Bunce in Lepes., Fl. Ross. I, 1842, 
p. 195; Platypetalum purpurascens R. Br., Chloris Melvill., 1823, p. 9; 
Hooker, Fl. Bor. Am. I, 1830, p. 66, tab. 23; B. glabella auctt., non 
Richardson. 
B. alpina, and var. glabella, WALKER, Boothia Felix. 
Two small flowering specimens were collected on July 31st 1904. 
There is much confusion concerning the arctic species of Brava, the 
main cause of which seems to be the misunderstanding of Brava glabella 
RicHarpson (in App. VII to Frankl. rst Journ., ed. 1, 1823, p. 743). Some 
authors have taken it as a mere synonym to Braya purpurascens (R. Br.) 
Bunce, but this is very far from correct. Others, as my late friend 
O. GELERT (in Botan. Tidsskr., vol. 21, 1898, p. 292), consider it as iden- 
tical with B. alpina Sterns. & Hoppe, and this is more natural and coin- 
cides more with RicHarpson’s description (l. c.). But I think it is an 
independent species, which has been described again by G. Rouy, who 
has given it the new name B. linearis Rovy (Illustrationes pl. Europ. 
rar., fasc. XII, 1899, p. 84, pl. 254, et Revue de Bot. Systemat., tome I, 
1903, p. 76). 
Mr. Rouy ! has namely given this name to the Scandinavian species 
of Brava, which elsewhere has been called B. alpina STERNB. & Hoppe. 
1 Rovy considers B. glabella RicHarns. related to, but distinct from B. purpurascens, and 
far remote from his B. linearis and B. alpina. 
Vid.-Selsk, Skrifter. I. M.-N. Kl. 1909. No. 8. 2 
