242 RypperG: STUDIES ON THE Rocky MounTAIN FLORA 
spatulate, ro-18 mm. long, entire or nearly so; stem leaves ovate, 
about 1 cm. long, sharply dentate or entire: raceme elongated; 
pedicels slender, in fruit about 1 cm. long, erect: petals white, 4-5 
mm. long: pod (in the specimen not fully developed) ovate, densely 
but finely pubescent, much shorter than the pedicels: style 0.75 
mm. long. 
This species belongs also to the D. zvcana group, but differs 
from that species in the elongated peduncle, long pedicels, short 
pubescent pod and large petals. : 
Alberta: Valley below Mt. Aylmer, 1899, W. C. McCalla, 
2267 (type in herb. N. Y. Bot. Gard.). 
“ Draba Columbiana sp. nov. 
Perennial ; with a cespitose base, sparingly and finely stellate 
and ciliate on the margin of the leaves: stems slender, about 2 
dm. high, simple: basal leaves many, oblanceolate, 10-15 mm. 
long, denticulate or entire ; stem leaves ovate to lanceolate, about 
1 cm. long denticulate : raceme elongated, pedicels slender, ascend- 
ing, 5-7 mm. long in fruit:, flowers small; petals slightly over 2 
mm. long, white: pods linear-oblong, finely pubescent, over I cm. 
long, style very short. 
This species resembles much the preceding in habit, but the 
flowers are much smaller and the pods longer. 
British Cotumsta: Revelstoke, 1890, John Macoun (type in 
Herb. Columbia University). 
“ Geranium Pattersonii sp. nov. 
Cespitose perennial with a thick root and short caudex: stems 
ascending or diffuse, 2-4 dm. long, densely glandular villous with 
long spreading hairs, petioles of the basal leaves 5-10 cm. long, 
also glandular villous; blades reniform in outline, about 3 cM. 
broad, glandular villous on both sides, deeply 5-7-cleft ; lobes 
broadly obovate-cuneate, 3-toothed ; teeth broadly ovate, abruptly 
short-acuminate: stem leaves similar, but short-petioled or the 
uppermost subsessile: pedicels and calyx glandular long-villous; 
the former in fruit 1.5-2 cm. long: sepals in fruit about 8 mm. 
long, oval with a short bristle-tip about 1 mm. long: petals obo- 
vate about 1 cm. long, light purple, or rose color, with darker 
veins: style in fruit about 2 cm. long, glandular-pubescent ; beak 
about 4 mm. long: carpels pubescent : seeds finely reticulate. 
This species is perhaps nearest related to G. Parryt (Engelm.) 
Heller, but is lower, more densely glandular, has broader and 
