182 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Specimens examined: 
Arkansas: Fort Lyon, Palmer, April 9, 1863. 
Cotorapo: Plains, Hall & Harbour 211, in 1862; near Denver, Wolf, June, 1873; 
Pueblo, Hicks 157, June, 1890; Denver, Alice Eastwood, in 1891; dry plains, 
Crandall, April 28, 1894; Larimer County, Baker 3934, May 1, 1895; Fort 
Collins, Cowen 184, April 29, 1891; New Windsor, Osterhout, May, 1895; 
near Denver, Holzinger 6, 7, 8, 11, May 25—June 10, 1896. 
Wyomrna: Cheyenne, Harvard, in 1893; Laramie, A. & FE. Nelson 6829, May 31, 
1899. 
Sourn Dakota: Black Hills, Rydberg 727, May 27, 1892; Sinithville, 1. Bailey 
12, June 1, 1894. 
Montana: Bluffs of the Missouri, /avard, May, 1879; Great Falls, Williams, 
June, 1887 and 1891. 
Assin1porA: Medicine Hat, Macoun 4966, May 31, 1894. 
Cymopterus parryi (C. & R.) Tones. Zoe 4: 48. 1893. Fig. 53. 
Coloptera parryi C. & R. Rev. N. Am. Umbell. 50. 1888. 
Resembling C. acaulis, but the leaf segments shorter and more 
obtuse, the fruit somewhat larger with thicker lateral wings, the bract- 
lets somewhat different, and said to come from the mountains instead 
of the plains. 
Type locality, ‘* Little Sandy, northwest Wyoming;” collected by 
Parry in 1873; type in Herb. Gray. 
Western Wyoming and Montana. 
Specimens examined: 
Wromina: Type specimens as cited under type locality; Granger, Jones, June 
24, 1896; same station, Aven Nelson 4626, June 10, 1898. 
Montana: Gallatin County, Tweedy, May, 1888. 
3. Cymopterus leibergii VC. & R., sp. nov. 
Resembling C. acaulis, but somewhat stouter; leaves tripinnate, the 
ultimate segments short and mostly obtuse; peduncles as long as the 
leaves or longer; involucels of broad somewhat membranaceous bractlets 
more or less 3-cleft at the apex; fruit broadly oblong, 10 mm. long. 
Type locality, Malheur Valley, near Harper Ranch, Oregon; col- 
lected by Lesherg, no. 2253, June 12, 1896; type in U. S. Nat. Herb. 
Oregon and Idaho. 
Specimens examined: 
OREGON: Type specimens as cited under type locality. 
Ipano: Blue Lakes, Palmer 67, June 3, 1893. 
4, Cymopterus megacephalus Jones, Zoe 2: 14. 1891. 
Low (5 to 15 cm.) and glabrous, a cluster of prostrate leaves and 
peduncles arising from a thic k root; leaves shorter than the fruiting 
peduncles, pinnate or bipinnate, with narrowly oblong pinnatifid seg- 
ments; ultimate divisions rather narrow and bluntly toothed; rays and 
pedicels obsolete, the white flowers and fruit being in dense globose 
he 1s, and the bractlets of the involucel wedge shaped, more or less 
united at base and toothed at apex; fruit 6 to 8 mm. long, obovate, 
‘wi 
