HYDROLEACEAE. 
283 
Corolla-lobes distinctly dentate or erose. 
Corolla white; stamens about twice as long as the corolla. 
8. P. alba. 
Corolla purplish or pink ; stamens slightly exceeding the corolla. 
9. P. neo-inexicana. 
Plant perennial, cespitose; inflorescence spicate-thyrsiform. 
Plant equally sericeous throughout; segments of the leaves narrowly linear. 
10. P. sericea. 
Plant finely pubescent, hirsute-ciliate on the petioles; segments of the 
leaves oblong. n. P. ciliosa. 
1. Phacelia leucophylla Torr. On dry hills from S. D. and Wash, to Colo, 
and Utah.—Alt. up to 8000 ft.—Horsetooth Gulch; mountains between Sun¬ 
shine and Ward. 
2. Phacelia alpina Rydb. On mountains from Mont, to Colo, and Nev.— 
Alt. 7000-12,500 ft.—Steamboat Springs; Silver Plume; Mt. Harvard; near 
Ironton, San Juan Co. 
3. Phacelia heterophylla Pursh. On hills from Mont, and Wash, to Colo, 
and Calif.—Alt. 6000-9000 ft.—Near Empire; Ironton Park, 9 miles south 
of Ouray; foot-hills, Larimer Co.; Narrows, Poudre Canon; Howe’s Gulch; 
Dixon Canon; gulch west of Pennock’s; Horsetooth Mountain; Rist Canon; 
Rabbit-Ear Range, Routt Co.; Platte River; Colorado Springs; Eldora to 
Baltimore; Ft. Collins; Amelia; Table Rock; Ute Pass, near Pike’s Peak; 
Pagosa Peak; Van Boxle’s ranch, above Cimarron; Ouray; Upper West 
Mancos Canon; Sangre de Cristo Creek; East Indian Creek; Lake Moraine; 
William’s Canon, near Pike’s Peak; Trail Glen; Boulder; Rist Canon; 
Ragged Mountain. 
4. Phacelia integrifolia Torr. In gypsum soil from Colo, and Utah to 
western Tex. and Ariz.; also Mex.—“ Southwestern Colorado.” 
5. Phacelia corrugata A. Nels. In dry soil from Colo, and Utah to western 
Tex. and N. M.—Alt. 4000-5000 ft.—Grand Junction; Rifle, Garfield Co.; 
Palisade. 
6. Phacelia splendens Eastw. In dry ground in Colo, and Utah.—Alt. 
5000-8000 ft.—Ouray; Cimarron; Hotchkiss, Delta Co.; Grand Junction; 
Lake City. 
7. Phacelia glandulosa Nutt. In gravelly soil from Mont, to western Tex. 
and Ariz.—Alt. 6000-10,000 ft.—Mt. Harvard; Cheyenne Canon; West Span¬ 
ish Peak; Walsenburg; Lake City; Cumbres; foot-hills, Larimer Co.; Howe’s 
Gulch. 
8. Phacelia alba Rydb. In valleys from Wyo. to N. M.—Alt. 8000-10,000 
ft.—Headwaters of Clear Creek; Sangre de Cristo Creek; La Veta; Placer; 
Doyle’s; Georgetown; Marshall Pass; Graymont; Eldora to Baltimore. 
9. Phacelia neo-mexicana Thurber. In sandy soil from Colo, to N. M.— 
Alt. 4500-7500 ft.—Georgetown; between La Veta and Gardner, near Badito; 
Trinidad; Salida; La Porte, Larimer Co.; Dillon Canon. 
10. Phacelia sericea Hook. In the mountains from Mont, and B. C. to 
Colo, and Nev.—Alt. 9000-13,000 ft.—Lake City; mountains south of Ward, 
Boulder Co.; Mt. Garfield; Tennessee Pass, 7 miles west of Leadville; Lead- 
ville, Lake Co.; Mt. Harvard; Larimer Co.; Silverton; Medicine Bow Moun¬ 
tains ; above Graymont; above Como; Beaver Creek; Larimer Co.; Eldora 
to Baltimore. 
