POLEMONIACEAE. 
281 
4. Polemonium occidentale Greene. (P. coeruleum A. Gray, in part; not 
L. ) In valleys and open woods from Ass. and Alaska to Colo, and Utah. 
—Alt. 6000-9000 ft. — Headwaters of Sangre de Cristo Creek; Chambers’ 
Lake; Indian Creek Pass; Parlin, Gunnison Co.; Breckenridge; Gunnison; 
Ironton Park, 9 miles south of Ouray; Durango; Empire; Walden. 
5. Polemonium grande Greene. In the mountains of Colo.—Alt. about 
9000 ft.—Near Pagosa Peak. 
6. Polemonium molle Greene. In the mountains of Colo.—Alt. 8000-9500 
ft.—Piedra; near La Porte; Eldora to Baltimore. 
7. Polemonium Archebaldiae A. Nels. Mountains of Colo.—Berwind. 
8. Polemonium robustum Rydb. In the mountains of Colo., especially along 
streams.—Alt. 8000-10,000 ft.—Bob Creek, West La Plata Mountains; Keb- 
lar Pass; Veta Pass; Sangre de Cristo Creek; headwaters of Clear Creek 
at Dumont; Leroux Creek. 
9. Polemonium foliosissimum A. Gray. In the mountains of Colo, and N. 
M. —Alt. 6000-11,000 ft.—Headwaters of Clear Creek; Estes Park, Larimer 
Co.; La Veta; Veta Pass; Oak Mesa, Delta Co.; Durango; Berthoud Pass; 
Empire; Willow Creek; Graymont; Sargent. 
10. Polemonium speciosum Rydb. On the highest peaks of Colo.—Alt. 
about 13,000 ft.—Pike’s Peak; Mt. Garfield; Gray’s Peak. 
11. Polemonium Grayianum Rydb. On the higher peaks of Colo.—Alt. 
9000-13,000 ft. — Gray’s Peak; Graymont; Central City. 
12. Polemonium confertum A. Gray. On the higher mountains among 
rocks in Wyo. and Colo.—Alt. 9000-13,000 ft.—Mt. McClellan; Pike’s Peak; 
Cameron Pass; Lake City; Gray’s Peak; headwaters of Clear Creek; Sangre 
de Cristo Range; West Spanish Peak; Seven Lakes; near Pike’s Peak; near 
Ironton, San Juan Co.; mountains above Boreas; Little Kate Basin, La Plata 
Mountains; Ragged Mountain; Gunnison Co.; Argentine Pass; tributaries 
of South Fork of Cache la Poudre River, Larimer Co.; Beaver Creek; Mt. 
Abram, Ouray; mountains near Mt. Harvard; Mt. Hesperus; Devil’s Cause¬ 
way; Graymont; Berthoud Pass; Spicer, Larimer Co. 
13. Polemonium mellitum (A. Gray) A. Nels. ( P . confertum mellitum A. 
Gray) On the higher mountains from Wyo. and Nev. to Colo.—Alt. 8000- 
9500 ft.—Eldora to Baltimore. 
14. Polemonium Brandegei (A. Gray) Greene. ( Gilia Brandegei A. Gray) 
On the higher peaks of Colo.—Alt. 6000—12,000 ft.—Sierra Blanca; West 
Spanish Peak; Big Creek Gulch, Routt Co.; mountains between Sunshine 
and Ward; Wagon-wheel Gap. 
Family 114. HYDROLEACEAE H. B. K. Water-leaf Family. 
Ovary 1-celled; style 2-cleft; leaf-blades usually toothed, lobed or dissected. 
Corolla-lobes convolute in the bud; placentae dilated. 
Stamens exserted; calyx not enlarged in fruit; leaves alternate. 
1. Hydrophyllum. 
Stamens included. 
Calyx enlarged in fruit, not appendaged ; leaves opposite. 
2. Macrocalyx. 
