AMMIACEAE. 
255 
camps and Placer Gulch; Cameron Pass; headwaters of Pass Creek; Bob 
Creek; Gypsum Creek Canon, Eagle Co.; Beaver Creek; Berthoud Pass; 
between Sunshine and Ward. 
19. CONIOSELINUM Hoof. Hemlock Parsnip. 
1. Conioselinum scopulorum (A. Gray) C. & R. (Ligusticum scopulorum A. 
Gray) In mountain wood from Colp. to N. M. and Ariz.—Alt. 7000-11,000 
ft.—Headwaters of Clear Creek; near Empire; Ironton Park, 9 miles south 
of Ouray; Robinson; Red Mountain road south of Ouray; Alpine Tunnel; 
Marshall Pass; mountains, Larimer Co.; Crested Butte; Cumbres; Rabbit- 
Ear Pass; Palmer Lake; Breckenridge; canon west of Palmer Lake; Elk 
Canon; Ouray; Empire. 
20. HERACLEUM L. 
1. Heracleum lanatum Michx. In wet ground from Vt. and Alaska to 
N. C. and Calif.—Alt. 5000-10,000 ft.—Ruxton Brook; west of Ouray; Gun¬ 
nison ; Pagosa Springs; north Cheyenne Canon; Ft. Collins; Mancos; Baxter’s 
ranch; along the Poudre; between Sunshine and Ward. 
21. ANGELICA L. Angelica. 
Oil-tubes mostly solitary in the intervals, not continuous around the seed; 
rays of the umbels ascending. 
Involucels of many-lanceolate, long-acuminate bractlets. 1. A. Grayi. 
Involucels none, or a few linear-subulate or filiform bractlets. 2. A. pinnata. 
Oil-tubes continuous around the seeds ; rays of the umbels widely spreading. 
3. A. ampla. 
1. Angelica Grayi C. & R. In the mountains of Colo, and S. Wyo.—Alt. 
9000-13,000 ft.—Headwaters of Clear Creek; Pike’s Peak; Silver Plume; 
near Pagosa Peak; Cameron Pass; Little Kate Basin, La Plata Mountains; 
Graymont; West Spanish Peak; Keblar Pass; Boreas; Beaver Creek. 
2. Angelica pinnata S. Wats. In wet meadows from Alb. to N. M. and 
Utah.—Alt. 7000-8500 ft.—Gunnison Co.; Squaw Hill above Cimarron; 
Empire. 
3. Angelica ampla A. Nels. In wet meadows of Wyo. and Colo.—Alt. 
about 7000 ft.—Cheyenne Mountain; north of Cheyenne Canon; southeast of 
Jefferson, South Park. 
22. CYNOMARATHRUM Nutt. 
1. Cynomarathrum Eastwoodii C. & R. Low plains of western Colo.— 
Grand Junction; Mesa County. 
23. PASTINACA L. Parsnip. 
1. Pastinaca sativa L. Cultivated and escaped around dwellings from Vt. 
and Wash, to Fla. and Calif.—Boulder. 
