238 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Specimens examined ; 
Ipano: Type specimens as cited under type locality; along Hatwai Creek, Nez 
Perces County, Sandberg 28, April 24, 1892; Camas Prairie, Henderson 2660, 
June 24, 1894; forks of St. Marys River, Coeur d’ Alene Mountains, altitude 
1,000 meters, Letberg 128, July 1, 1895; about Lewiston, Nez Perces County, 
ALA. B, Gertrude Heller 3132, May 27, 1896. 
OrkeGoN: [Hills near Snake River, Cusick 1905, May 31, 1898, 
55. Lomatium platyphyllum ©. & R. 
Peucedanwun latifolium Nutt. in Torr. & Gray, Fl. 1: 625. 1840. Not DC. 
Peucedaniun nuttallii Watson, Bot. King Sury. 128. 1871, not Seseli nittallii 
Gray (1870). 
Resembling 2. nudicaule, but smaller; leaves once or twice ternate, 
with ovate to orbicular leaflets cuneate to cordate at base; pedicels 
usually of the longer type; fruit ovate to oblong, 8 mm. long, 6 mm. 
broad, and very narrowly winged; oil tubes small, 3 in the intervals, 
4 to 6 on the commissural side; seed face almost plane. 
Type locality, ‘plains east of Wallawalla River, Oregon:” col- 
lected by Nuttall; type in Herb. Philad. Acad. 
From northern Nevada to eastern Washington and adjacent Idaho. 
Speciinens erantined ¢ 
Nevapa; Havallah Mountains, Wofsow 462, June, 1868; Aurum, White Pine 
County, altitude 2,190 meters, Jones, June 30, 1893, 
OREGON: Type specimens as cited under type locality; ‘sterile stony ridges,” 
Cusick, in 1884; near Roek Creek, Morrow County (altitude 790 meters), 
and near Grizzly Butte, Crook County (altitude 1,090 meters), Leiberg 82, 
289, May—June, 1894. 
Wasuinaton: Upper Columbia (no. 1090) and Spokane rivers, Wilkes Eerped.; 
Sandberg & Letberg 487, in 1893; Whited, April 12, 1896; Wenatchee Moun- 
tains, Kittitas County, altitude 1,200 meters, Elmer 475, July, 1897, 
56. Lomatium nudicaule (Pursh) C. & R. 
Smyrniwn nudicaule Pursh, Fl. 1: 196. 1814. 
Ferula nudicaulis Nutt. Gen. 1: 183. 1818. 
Ferula nuttallii DC. Prodr. 4: 174. 1830. 
Seseli lerocarpum Hook. Fl. Bor. Am. 1: 263. pl. 93. 1834. 
Peucedanum leiocarpum Nutt. in Torr. & Gray, Fl. 1: 626. 1840. 
Peucedanumn nudicaue Nutt. in Torr. & Gray, Fl. 1: 627. 1840, 
Peucedanum robustum Jepson, Erythea 1: 9. 1893. 
Acaulescent, glabrous, 8 to 6 dm. high, from a very long fleshy root; 
leaves biternate or ternate-quinate or sometimes simply ternate; leaf- 
lets thickish, from oyate to narrowly lanceolate, 2.5 to 5 em, lone, 
petiolulate or sessile, entire or toothed at apex; umbel very unequally 
9 to 20-rayed, with neither involucre nor involucels; peduncles and 
‘ays dilated at summit; rays 2.5 to 20cm. long; pedicels variable. 2 to 
20 mm. long; flowers yellow; fruit narrowly oblong, # to 14mm. long, 
3 to 6 mm. broad, narrowly winged; oil tubes large and solitary in 
the intervals or 2 in the laterals, 4 or 6 on the commissural side; seed 
face somewhat concave. 
Type locality, **on the Columbia River; collected by Lewis (accord- 
