THE PERENNIAL SCAPOSE DRABAS OF NORTH AMERICA 257 
Ciliations absent or incon- 
spicuous 19. D. ventosa. 
1. D. ALPiNA L. Sp. PL 642. 1753. 
A circumpolar species probably never found within the United 
States. 
Specimens Examined. — ^Alaska: Hall Island, July 14, 1899, 
Trelease & Saunders, no. 3922; same locality, July 14, 1899, Trelease 
& Saunders, no. 3924. 
2. D. FLADNiZENSis Wulf. in Jacq. Misc. Austr. i: 147. 1778. 
Specimens Examined. — Canada : Digges Island, Hudson Strait, 
Sept. 15, 1884, R. Bell; Okkak, N. E. Labrador, G. Auspach; Table 
Top Mt., Gaspe Co., Quebec, Aug. 10, 188 1, J. ^. Allen; Nottingham 
Island, Hudson Bay, Aug. 26, 1884, R. Bell. Colorado: Gray's 
Peak and vicinity, Aug. 6, 1885, H. N. Patterson, no. 3; Sawatch Range, 
Brandegee, no. 13, 713. Greenland: Prakes Fiord, W. H. Burkj 
no. 10, 1891; Disco, Ivannersoil, June 22, 1871, Th. M. Fries. Utah: 
Mt. Barette, July 26, 1905, Rydberg & Carlton, no. 7240. 
3. Draba oreibata Macbride & Pay son, n. sp. 
Cespitose perennial: leaves oblong-linear, obtuse, 4-6 mm. long, 
midvein evident, glabrous except for unbranched cilia on margins: 
scapes leafless, slender, glabrous, 3-5 cm. long: sepals glabrous, yel- 
lowish; petals white, twice as long as the sepals: fruiting inflorescence 
elongated: pods flat, glabrous, narrowly elliptical, 8-10 mm. long, 
2-3 mm. broad; style slender, nearly i mm. long. 
D. oreibata probably finds its closest relative in D. fladnizensis. 
From this it may be separated by the shorter, more obtuse leaves, the 
elongated instead of the corymbose fruiting inflorescence, the elliptical 
instead of lanceolate pod and especially by the slender style. In 
D. fladnizensis the stigma is sessile or nearly so. 
Specimens Examined. — Idaho: alpine summit of Lost River Mts., 
west of Clyde, Blaine Co., July 10, 1916, Macbride & Pay son, no. 3135 
(type in Gray Herbarium, duplicate in Ry. Mt. Herbarium). Utah: 
southern Utah, May 14, 1874, ^. L. Siler; southern Utah (near Osmer), 
A. H. Siler, no. 34, southern Utah, 1874, Parry, no. 34. 
4. Draba globosa Payson, n. sp. 
Densely cespitose perennial ; caudex much branched : leaves densely 
imbricated, forming globose tufts on the ends of the caudex-branches, 
scarcely over 5 mm. long, broadly linear, acute, midvein evident. 
