BoT— Vol. II.] PURD Y— CALOCHORTUS. II 3 



Group 2. Star Tulips. 



Type of Group C. elegans. 



Flowers campanulate, erect or ascending; capsule nodding (except in No. 

 13); stem low and flexuous (In 14, 15, 16, stout and erect), not bulbiferous or 

 very seldom so. 



* Petals covered with hairs, and with a transverse scale covering upper part 

 of the gland. Woodland plants. 



Flowers yellow. Foothills of the Sierra Nevada ... 5. C benthami. 

 Flowers white or purplish blue, covered with long erect hairs; cap- 

 sule oblong-elliptical; stem branching 6. C. niaweanus. 



6a. C. maweanus var. tnajor. 

 6b. C. maweanus var. roseus. 

 Flowers blue, covered with silky hairs, longer and slenderer than 

 the last; capsule orbicular; inflorescence umbellate. 



7. C. cceruleus. 

 Flowers greenish white; petals with very narrow scale and covered 

 with long hairs. Oregon and north . .8. C. elegans. 



8a. C. elegans var. nanus. 



Flowers yellow, green tinged; petals strongly inarched and pit 



deeply set. Mt. Jefferson, Oregon 9. C. lobbii. 



** Petals with a transverse scale closely appressed over upper portion of 

 gland, nude or iiearly so. Woodland plaiits; in dry soil. 



Flowers white with a single tuft of a few hairs at each end of scale 

 on petals; plants very low and slender. Sierra Nevada, 



10. C. nudus. 



Flowers white with scant hairs on lower third; plants taller than the 

 last. Vicinity of San Francisco Bay 11. C umbellatus. 



*** Petals nude or only lower portion hairy; flowers campanulate; plants 

 growing in opeji wet meadows. 



Flowers lilac, hairy on lower third; one or several bulblets on stem 



below the ground 12. C. uniflorus. 



Flowers white, not bulbiferous; capsules erect. . .13. C. shastensis. 



**** Petals covered with silky hairs; flowers atid stems stout and erect. 

 Closely related to Group i of Mariposa. Plants growing in open 

 fields or hillsides. Mt. Shasta, California, and north. 



Flowers blue; petals without scale, covered with long silky hairs. 



Mt. Shasta, California (?), and Willamette Valley, Oregon. 



14. C. tolmiei. 

 Flowers white; petals with scale, otherwise the same as the last. 



Willamette Valley, Oregon 15. C. purdyi. 



Flowers straw color ; petals without scale, otherwise like C. 



tolmiei. Lake Pend d. Oreille, Idaho i6. C apiculatus. 



