288 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
Rance: Athabasca to Colorado and California. Siberia. 
SPECIMENS EXAMINED: Olympic Mountains, Flett 844; Cascade Mountains, latitude 49°, 
Lyall in 1860; Mount Adams, Fett 1131; Chiquash Mountains, Suksdorf’ 2426; Blue 
Mountains, Piper 2404. 
ZONAL DISTRIBUTION: Arctic. 
6. Draba douglasii A. Gray, Proc. Am. Acad. 7: 328. 1868. 
Braya oregonensis A. Gray, Proc. Am. Acad. 17: 199. 1882. 
Type Locauity: ‘High Sierra Nevada; on the gravelly ‘divide’ between East Carson 
and West Walker Rivers.’”’ Collected by Anderson. Also from ‘the interior of Oregon 
or California.”” Collected by Douglas. 
SPECIMENS EXAMINED: Klickitat Hills, Howell 50, 386. 
7. Draba lonchocarpa Rydberg, Mem. N. Y. Bot. Gard. 1: 181. 1900. 
Draba nivalis elongata 8. Wats. Proc. Am. Acad, 23: 258, 1888, not D. elongata Host. 
1827. 
TypPE Loca.ity: ‘ Rocky Mountains, from British America to Wyoming and the Uintas; 
Mt. Adams.” 
Rance: British Columbia and Alberta to Utah. 
SPECIMENS EXAMINED: Mount Rainier, Piper 2060; Mount Baker, Flett 856; Mount 
Adams, Suksdorf 239; Chiquash Mountains, Suksdorf 2541. 
ZONAL DISTRIBUTION: Arctic. 
8. Draba aureola S. Wats. Bot. Cal. 2: 430. 1880. 
TYPE Loca.ity: ‘Sierra Nevada, in Sierra County,” California. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Mount Rainier, Flett 286; Piper 2061; Smith & Piper 699. 
ZONAL DISTRIBUTION: Arctic. 
DraBa LEMMONI S, Wats. This species is accredited to Washington on a specimen col- 
lected by Flett in the Olympic Mountains and thus determined by Wiegand. This speci- 
men certainly is not D. lemmoni, but is probably an undescribed species. The material is 
too young, however, for satisfactory description. 
DENTARIA. 
Basal leaves cordate-orbicular, crenate or sinuate_........ - 1. D. tenella. 
Basal leaves parted or divided into 3 or 5 segments. 
Petals 10 to 12 mm. long... -- wee eee eee ee eee ee eee 2. D. macrocarpa. 
Petals 12 to 16 mm. long....-.....-.........-...-.- 3. D. macrocarpa pulcherrima. 
1. Dentaria tenella Pursh, Fl. 2: 439. 1814. 
Type Locaity: “On the banks of the Columbia.” Collected by Lewis, the exact place 
near the mouth of Sandy River, Oregon. 
Rance: Washington and Oregon. 
SPECIMENS EXAMINED: Whidby Island, Gardner 14; Silverton, Bouck 21; Tacoma, 
Flett 70; Snoqualmie, Hindshaw; upper Nisqually Valley, Allen 51; Nisqually tide flats, 
Fleit 95; west Klickitat County, Suksdorf 4, 235; Seattle, Piper in 1888. 
ZONAL DISTRIBUTION: Humid Transition. 
2. Dentaria macrocarpa Nutt.; Torr. & Gr. Fl. 1: 88. 1838. 
Cardamine quercetorum Howell, Erythea 3:33. 1895. 
Cardamine tenella covilleana Schulz; Engler’s Bot. Jahrb. 32: 391. 1903. 
Cardamine tenella dissecta Schulz, op. cit. 
Cardamine tenella quercetorum Schulz, op. cit. 390. 
Type Locauity: “ Woods of the Oregon.” Collected by Nuttall. 
@Bull. Torr. Club 5: 209. 1874. 
