POLEMONIACEAE. 279 



21. Gilia Haydeni A. Gray. Dry plains of Colo. Plains of the Mancos; 

 San Juan; Mesa Verde and El Late (Brandegee). 



22. Gilia leptomeria A. Gray. In dry soil from Colo, and Utah to N. 

 M. and Calif. Alt. 4000-5000 ft. Deer Run, Gunnison watershed; Grand 

 Junction. 



23. Gilia pentstemonoides M. E. Jones. On rocks in Colorado. Cimarron. 



24. Gilia sedifolia Brand. On mountains in Colo. Sheep Mountain, Un- 

 compahgre Range. 



5. GYMNOSTERIS Greene. 



i. Gymnosteris nudicaulis (H. & A.) Greene. In sandy soil from Ore. to 

 Nev. and Colo. (Gray}. 



6. LEPTODACTYLON Nutt. 



Leaves alternate; stem woody throughout. i. L. pungens. 

 Leaves opposite ; stem woody only at the base. 



Leaves decidedly pungent ; ovules numerous. 2. L. Watsonii. 



Leaves scarcely pungent ; ovules 2-3 in each cell. 3. L. Nuttallii. 



1. Leptodactylon pungens (Torr.) Nutt. (Cantua pungens Torr. ; Gilia 

 pungens Benth.) In sandy valleys and on hillsides, Mont, and Wash, to 

 Colo, and Calif. Alt. 6000-9000 ft. Black Canon; Gunnison; New Windsor, 

 Weld Co. ; mountains, Larimer Co. ; Walsenburg ; headwaters of Sangre de 

 Cristo Creek ; Denver. 



2. Leptodactylon Watsonii (A. Gray) Rydb. (Gilia Watsonii A. Gray) 

 Rocky hills in Utah and Colo. Alt. up to 5000 ft. Grand Junction; Glen- 

 wood Springs. 



3. Leptodactylon Nuttallii (A. Gray) Rydb. (Gilia Nuttallii A. Gray) 

 In the mountains from Wyo. and Wash, to Colo, and Calif. Alt 9000-11,000 

 ft. Arkansas Junction, near Leadville ; Robinson ; Tennessee Pass, Lake Co. ; 

 near Pagosa Peak; Oro City; Continental Divide, Routt Co.; Rabbit-Ear 

 Pass ; La Plata Canon ; Ragged Mountain ; Florence ; Rabbit-Ears, Larimer Co. 



7. NAVARRETIA R. & P. 



i. Navarretia minima Nutt. In dry soil from Sask. and Wash, to Neb., 

 Ariz, and Calif. Alt. 4000-9000 ft. Steamboat Springs; Bear River; Delta 

 Co. ; Hebron. 



8. COLLOMIA Nutt. 



i. Collomia linearis Nutt. In dry and sandy soil from N. D. and B. C. 

 to Neb. and Calif; also introduced in N. B. and N. Y. Alt. 4000-9000 ft. 

 Larimer Co.; Chicken Creek, West La Plata Mountains; Mancos; North 

 Park, near Teller; Steamboat Springs; Poverty Ridge, near Cimarron; 

 Ward, Boulder Co. ; Jack's Canon, Gunnison watershed ; divide road to 

 Steamboat Springs; Parlin, Gunnison Co.; La Veta; Idaho Springs; Du- 

 rango; headwaters of Pass Creek; Pagosa Springs; Grayback mining camps 

 and Placer Gulch; Mt. Richtofen on the Michigan; Platte Canon; Table 

 Rock ; the Narrows ; Dolores ; Rist Canon ; Horsetooth Gulch ; Monument ; 

 Poudre River; Boulder. 



