40 Rydberg : Rocky Mountain flora 



slightly longer than the calyx ; galea 8 mm. long ; lip about 3 

 mm. long, its lobes ovate. 



This species is closely related to C. pallida, but differs in the 

 leaves, which are shorter, neither long-attenuate nor falcate, and 

 in the different color of the bracts and corolla. 



In mountain meadows especially on the geyser formations at 

 an altitude of 2000-2700 m. 



Wyoming: Lower Geyser Basin, Yellowstone Park, 1897, 

 Rydberg & Bessey 4-g6^ (type) ; Lone Star Geyser Basin, no. 4.^61 ; 

 Upper Hoback Basin, 1900, C. C. Curtis. 



Montana: Mountains near Indian Creek, 1897, Rydberg &■ 

 Bessey 4g6'j. 



Alberta: Vicinity of Banff, 1899, W. C. McCalla 2i8y. 



Castilleja parvula 



Cespitose perennial with a short caudex ; stems many, 5—15 

 cm. high, puberulent ; leaves lanceolate, 1—2 cm. long, puberulent ; 

 bracts ovate, dark brownish-crimson, finely puberulent, entire or 

 with short lobes; calyx 12-14 nim. long, puberulent, equally 

 cleft above and below, its lobes oblong, obtuse, 2—3 mm. long ; 

 corolla 17—18 mm. long, greenish with purplish margins ; galea 

 about 7 mm. long; lip 2.5—3 nim. long, its lobes lanceolate. 



This species is closely related to C. occidentalism but differs in 

 the bracts, which are darker, of a deep crimson shade and not at 

 all villous, and also in the corolla, which is decidedly greenish and 

 with a shorter lip. It grows among rocks on high mountains, at 

 an altitude of nearly 3000 m. 



Utah : Mountains north of Bullion Creek, near Marysvale, 

 1905, Rydberg & Carlton JijS (type) and yogo. 



Castilleja pulchella 



Perennial with a cespitose caudex; stems 5-15 cm. high, as- 

 cending, more or less villous especially above ; leaves 1—4 cm. 

 long ; the lower entire and linear-lanceolate, the upper broader 

 and 3 -cleft, puberulent and slightly villous ; lobes linear-lanceo- 

 late, attenuate ; bracts elliptic, usually 3-cleft, the middle lobe 

 broad and rounded, tinged with brownish, villous ; calyx yel- 

 lowish, tipped with brownish, about 18 mm. long; lobes very short 

 and rounded ; corolla slightly exserted ; galea 7 mm. long ; lip 5 

 mm. long, its lobes lanceolate, obtuse. 



This species is intermediate between C. hitea and C. occidcntalis. 



