220 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
20, Lomatium orientale C. & R., sp. nov. 
Peucedanum nudicaule Nutt. in great part, and of all later authors. 
Acaulescent or shortly caulescent, with short and soft pubescence, 
peduneles 1 to 3 em. high, and a thick elongated root (often swollen in 
places); leaves bipinnate, the small oblong segments entire or toothed; 
umbel. unequally 5 to 8-rayved, with involucels of scarious-margined 
(often purplish) lanceolate distinct bractlets; rays 1 to 3.5 em. long; 
pedicels glabrous, 5 to 7 mm. long; flowers white or pinkish. with 
glabrous ovaries; fruit almost round, emarginate at base, glabrous, 5 
mm. long, + mm. broad, with wings not as broad as body, and indis- 
tinct or obsolete dorsal and intermediate ribs; oil tubes solitary in the 
intervals (varely 2 in the lateral intervals), 4 on the commissural side: 
seed face plane. 
Type locality, plains around Denver, Colo.; collected by Bethe, 
May, 1895; type in U.S. Nat. Herb. 
On the plains from North Dakota to Kansas, and west to Arizona 
and Washington. 
Specimens examined: 
Kansas: Western Kansas, Herb. State Agric. Coll. 
NEBRASKA: Wilcox, in 1887; Long Pine, Brown County, Rutter, June 1, 1893. 
Sourn Dakota: Aurora County, Wilcox, May 20, 1892. 
Montana: Blankinship, May 3-4, 1890; Warm Peak, Bear Lodge, I. Bailey, 
June 8, 1894. 
Wyominc: Fort Russell, Ruby, in 1885; Cheyenne, Harard, in 1893; Laramie 
plains, Nelson, May, 1893 and 1894. 
Cotorano: Hall & Harbour 212, in 1862; Palmer Lake, Alice Hastwood, May 25, 
1890; Cache la Poudre, Cowen, May 28, 1891; foothills, altitude 1,800 to 
1,950 meters, Crandall, May, 1893 and 1894; near Windsor, Osterhout, May, 
1894; plains about Denver, Bethel, May, 1895; Log Canyon and Rist Canyon, 
Holzinger 3, May 31, 1896. 
New Mexico: Mangus Springs, Rusby 148, February 25, 1880. 
Arizona: MacDougal 5, June, 1891; Flagstaff, altitude 1,650 meters, Mae Dougal 5, 
May 31, 1898; Clifton, Davidson, in 1899. 
Uran: Palmer 181, in 1877. 
Tpano: Allen, in 1873; boundary of Idaho and Washington, Canby, in 1891. 
In 1818 Nuttall transferred Pursh’s Simyrntum nudicaule to Ferula, and cited with 
the type of Pursh (a Lewis & Clark plant from the Columbia River) a more eastern 
plant, ‘‘on the high plains of the Missouri, commencing about the confluence of the 
river Jauk [Jaune= Yellowstone or Jacque= Dakota],’’ a plant said by Nuttall to 
be associated on the eastern plains with L. foeniculaceum. Since then the name 
nudicaulis has been associated with the plant of the eastern plains. It wasa puzzle to 
us to find that the type locality of Smyrnium nudicaule was entirely to the west of its 
present range, but Messrs. Robinson and Greenman have cleared up the matter 
by examining Pursh’s type, and discovering that it is the same as the abundant Sese/i 
leiocarpum of Hooker, from the same region. This leaves the eastern plant without 
a hame. 
21. Lomatium nevadense (Watson) C. & R. Fig. 60. 
Peucedanum nevadense Watson, Proc. Am. Acad. 11: 148. 1876. 
Glaucous, puberulent, short caulescent, peduncles | to 4 dm. high; 
leaves pinnately decompound, with small segments: umbel unequally 
