COULTER AND ROSE—-NORTH AMERICAN UMBELLIFERAE. 231 
Only known from the type locality. 
Specimens examimed: 
OREGON: Type specimens as cited under type locality. 
40, Lomatium donnellii C. & R. 
Peucedanum donnellii C. & R. Bot. Gaz. 13: 143. 1888. 
Short caulescent or acaulescent, 1.5 to 3. dm. high, glabrous, from a 
fusiform root; leaves ternate then pinnately decompound, with seg- 
ments pinnately cleft into short oblong or linear lobes; umbel some- 
what unequally 6 to 12-rayed, with involucels of linear acuminate 
bractlets; rays 2.5 to LO em. long; pedicels 4 to 16 mm, long; flow- 
ers yellow; fruit ovate to broadly oblong, glabrous, 7 to 5 mm. long, 
4 to 6 mm. broad, with wings less than half as broad as body, and 
prominent dorsal and intermediate ribs: oil tubes small, 4 to 6 in the 
intervals, 4 to 6 on the commissural side. 
Type locality, ‘John Day Valley”, Oregon; colleeted hy /oiel/, no. 
829, May 10,1885; type in Herb, Coulter, duplicate in U.S. Nat. Herb. 
Eastern Oregon and adjacent Idaho. 
Specimens examined: 
Orecon: Union County, Cusick 36, May, 1883; type specimens as cited under 
type locality; near Lone Rock, Gilliam County, altitude 1,240 meters, Lei- 
berg 111, May 28, 1894; Otis Creek, Malheur County, altitude 1,100 meters, 
Leiberg 2329, June 19, 1896; hillsides of Agency Valley (Mathews County), 
and Logan Valley (Blue Mountains), Cusick 1622, June, 1897; Cusick 1857, 
May—June, 1898. 
Ipano: About Lewiston, Nez Perces County, altitude 750 to 900 meters, 
A. A. & Ee. Gertrude Heller, May, 1896. 
41. Lomatium lemmoni C. & R. 
Peucedanum lemmoni C. & R. Bot. Gaz. 14: 277. 1889. 
Cauleseent, with most of the leaves near the base, 3 to 4 dm. high, 
clothed at base with old leaf sheaths, from an elongated rather slender 
root, glabrous; leaves broad triangular in outline, 12.5 to 20 cm, long, 
including petiole, twice or thrice pinnate (or so broad as to appear at 
first ternate); the ultimate segments linear, 2.5 to 5 em, long; upper- 
most leaves much smaller and simply pinnate; umbel 6 to 8-rayed, 
with involucels of a few almost filiform bractlets; rays short, 6 to 14 
mm. long, making the fruits appear in a head-like cluster; pedicels 2 
mm. long; flowers white (4); fruit oblong, glabrous, 5 mm. long, 
scarcely 4 mm. broad, with thickish wings about half as broad as 
body, and distinct dorsal and intermediate ribs; oil tubes solitary in 
the dorsal intervals, 2 or 3 in the lateral, 4 to 6 on the commissural 
side; seed face plane. 
Type locality, ** Huachuca Mountains,” southeast Arizona; collected 
by Lemmon, no. 392, June, 1887; type in U.S. Nat. Herb. 
Only known from the type locality. 
Specimens examined: 
Arizona: Type specimens as cited under type locality. 
