Rydberg : Studies on the Rocky Mountain Flora 25 



American relatives by the narrow, long-acuminate divisions of its 

 stem-leaves. It grows in wet places, especially under snowdrifts, 

 at an altitude of 2500-3300 m. 



Colorado : Near Gray-Back Mining Camp, Sangre de Christo 

 Range, 1900, Rydberg & Vreeland, 5576 (type, fertile plant); 

 Mountain near Veta Pass, 5575 (staminate plants) ; Bear Creek 

 Canon, 1895, Ernst A. Bessey (fertile) ; Pagosa Peak, 1899, C. F. 

 Baker % 620. 



Campanula MacDougalii sp. no v. 



A slender glabrous perennial, about 3 dm. high with slender 

 horizontal rootstock. Leaves very thin : the basal ones and lower 

 stem-leaves with slender petioles 2-4 cm. long : blades broadly 

 ovate, 2—3 cm. long, coarsely sinuate-dentate : upper stem-leaves 

 lanceolate to linear, entire ; the largest 5-6 cm. long : sepals linear 

 subulate, 10-12 mm. long, at last reflexed : corolla 13-15 mm. 

 long, nearly of the same shape as that of C. rolundifolia : style 

 exserted, straight : fruit not seen. 



The species is nearest related to C. Scotileri ; but is easily dis- 

 tinguished from that species by the lack of the sharp toothing of 

 the leaves. The lower leaves resemble somewhat those of C. 

 rotundifolia, and were it not for the exserted style and the smaller 

 corolla it may be referred to the var. Alaskana of that species. 



Idaho : Priest Lake, 1900, D. T. MacDougal, 66. 



^Castilleja linearis sp. nov. 



A rather slender perennial, with a rootstock. Stem simple, 

 3—4 dm. high, finely villous pubescent : leaves narrowly linear, 

 about 5 cm. long and 2 mm. wide, pubescent, entire or the upper 

 with a pair of narrowly linear lobes': bracts broader, deeply cleft 

 into three linear lobes, tipped with brick-red : calyx villous, 2-2.5 

 cm. long, cleft almost equally deeply in front and behind, more than 

 half way down : lateral lobes linear, 8-10 mm. long : corolla 2.5— 

 3 cm. long, greenish yellow : galea about 1 2 mm. long, with red mar- 

 gins : lower lip dark green, about 3 mm. long, 3-lobed. 



This species 



/ 



but has the corolla of C. miueata. It grows in meadows at an alti- 

 tude of about 2500 m. 



Colorado: Near West Spanish Peak, 1900, Rydberg & Vree- 

 land, 56 1 y 



