176 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Aulospermum glaucum (Nutt.) C. & R. 
Cymoplerus glaucus Nutt. Jour. Philad. Acad. 7: 28. 1834, not Watson in Bot. 
King Surv. 
Phellopterus glaucus Nutt. in Torr. & Gray, Fl. 1: 624. 1840. 
Very near to A. /ongipes, but with more finely dissected leaves, 
involucres resembling the involucels, and the latter of larger and nar- 
rower bractlets. 
Type locality, ‘‘on the borders of the Flat Head River, toward the 
sources of the Columbia;” collected by Vuttal/; type in Herb. Philad. 
Acad. and Herb. Columbia Univ. 
Idaho. 
Specimens examined: 
Ipano: Near Sawtooth, Hvermann 526, July 9, 1896; perhaps also Secesh Peak (?), 
Henderson 3180, July 2, 1895, 
Various specimens have been referred here, but mostly érroneously. In 1871 Dr. 
Watson redescribed the species, basing his description upon his own specimens, col- 
lected in the mountains of Nevada, Although he states that his specimens accord 
exactly with Nuttall’s type, a careful comparison of the two descriptions shows 
plainly that they are distinct though related species. Nuttall describes his plant as 
having smooth and glaucous leaves, yellow flowers, ete., while Watson says the leaf 
segments are more or less scabrous-puberulent and the flowers are white. 
3. Aulospermum watsoni UC. & R., sp. nov. 
Cymopterus glaucus Watson in Bot. King Surv. 124. 1871. Not Nuttall. 
More or less scabrous-puberulent; leaves tripinnate, the ultimate 
divisions crowded, linear-oblong, with revolute margins; peduncles at 
first short, elongating in fruit and exceeding the leaves; umbels 5 to 
15-rayed, with an involucre of setaceous bracts or none, and involu- 
cels of linear acute bractlets; rays 8 to 24mm. long; pedicels 4 to 6 
mm. long; fruit 4 to 7 mm. long, the 2 to 5 carpel wings rather nar- 
row; oil tubes 3 to 5 in the broad intervals, 6 to 8 on the commissural 
side; seed face with narrow sulcus. 
Type locality, Battle Mountains, Nevada; colleeted by Watson, no. 
450, June, July, 1868; type in U.S. Nat. Herb. 
Mountains of Nevada. 
Specimens examined : 
Nevapa: Battle Mountains, cited under type locality; Palisades, GR. Vasey 229, 
April, 1880. 
4, Aulospermum ibapense (Jones) C. & R. 
Cymopterus ibapensis Jones, Zoe 3+ 302. 1893. 
Glaucous and glabrous; leaves tripinnate, the ultimate divisions 
crowded, oblong, obtuse, with revolute margins; peduncles in fruit 
exceeding the leaves; umbels with 6 to 8 rays about 1 em. long in 
fruit and nearly equal; pedicels 4 mm. long; involucre none; involucels 
of linear acute bractlets; fruit 4 to 5 mm. long, and carpel with 5 broad 
thin wings somewhat thickened at insertion; oil tubes 3 in the inter- 
vals, 6 on the commissural side; seed face with narrow sulcus. 
