648 PRIMULACEAE 



icana Rydb. Swamps and wet meadows: Sask. Colo. Utah Alta. Sub- 

 mont. Je-Au. 



4. P. specuicola Rydb. Leaves 5-13 cm. long, thin, slightly farinose when 

 young, in age glabrate, spatulate or elliptic, obtuse at the apex, sinuate-dentate; 

 scape 1-1.5 cm. long; umbels 10-20-flowered; bracts 5-10 mm. long; calyx densely 

 farinose; tube deeply campanulate, 3-5 mm. long; lobes linear-oblong, 2.5-3.5 

 mm. long, obtusish; corolla- tube yellowish; lobes cuneate, merely emarginate, 

 with a broad sinus, dark violet, about 3 mm. long. Under overhanging cliffs: 

 s Utah. Son. F-Je. 



5. P. angustifolia Torr. Leaf-blades from linear-oblanceolate to spatu- 

 late, 1-5 cm. long, glabrous and fleshy, entire-margined, obtuse; scape 1-5 cm. 

 high, usually 1-flowered; calyx three-fourths as long as the corolla-tube to 

 almost equalling it; calyx-tube obconic; lobes linear-lanceolate, acute; corolla 

 about 1 cm. long; lobes emarginate, 5-8 mm. long. Alpine peaks: Colo. Alp. 

 Je-Jl. 



6. P. Broadheadae M. E. Jones. Leaf-blades elliptic, 2-8 cm. long, gla- 

 brous, entire-margined, rather thick, rounded at the apex; scape 5-10 cm. high, 

 1-4-flowered; calyx half as long as the corolla-tube, about 6 mm. long; lobes 

 lanceolate, acute; corolla purple; lobes rounded, emarginate, 4-6 mm. long. 

 Marshy places: Ida. Utah. Submont. Mont. My-Je. 



7. P. Parryi A. Gray. Leaf-blades oblong or oblanceolate, 5-15 cm. long, 

 fleshy, puberulent, callous-denticulate or entire, acute or obtuse and mucronate; 

 scape 1-3 dm. high, several- to many-flowered; bracts lanceolate, 0.5-2 cm. long; 

 calyx usually shorter than the corolla-tube; lobes lanceolate, acuminate; corolla 

 strongly scented, 12-15 mm. long, purple; lobes rounded, notched. Wet places 

 among rocks and along streams: Mont. Colo. Ariz. Ida. Submont. Sub- 

 alp.. 



2. DOUGLASIA Lindl. MOUNTAIN PINK. 



Depressed and tufted perennials, with suffruticose bases. Leaves imbricate 

 and crowded at the ends of the branches. Flowers in small umbels, sometimes 

 reduced to one flower. Calyx campanulate, persistent, 5-lobed. Corolla salver- 

 shaped; tube equalling or surpassing the calyx; throat more or less contracted, 

 and 5-fornicate within. Stamens included, with short filaments. Style filiform; 

 ovary 1-celled, 5-ovuled. Capsule 1-2-seeded. 



Peduncles with several flowers in an umbel; leaves stellate-pruinose, not ciliate. 



1. D. nivalis. 

 Peduncles 1-3-flowered ; leaves ciliolate on the margins. 2. D. montana. 



1. D. nivalis Lindl. Plant 5-10 cm. high, 3-4-chotomously branched, with 

 several successive tufts of leaves; leaves thick, sessile, linear, obtusish, stellate- 

 pruinose, not ciliate, 6-12 mm. long; bracts similar to the leaves, but shorter; 

 calyx shorter than the corolla-tube; lobes lanceolate, acute; corolla 7-8 mm. long; 

 lobes oval, about 4 mm. long. High mountains: B.C. Wash. Alta. Alp. 



2. D. montana A. Gray. Cespitose perennial; leaves 3-8 mm. long; ped- 

 uncles 0.5-3 cm. long; bracts subulate; calyx equalling the corolla-tube; lobes 

 lanceolate; corolla purple or lilac, 6-8 mm. long; lobes cuneate or obovate, 3-4 

 mm. long. D. biflora A. Nels. Mountain tops and dry hills: Mont. Wyo. 

 Ore. Submont. 'Subalp. My-Jl. 



3. DROSACE A. Nels. 



Tufted perennials, with a cespitose caudex. Leaves rosulate at the ends of 

 the branches. Flowers umbellate, on short scapes. Calyx campanulate, per- 

 sistent. Corolla white, with a yellow eye, short salver-shaped ; tube shorter than 

 the calyx; throat more or less constricted. Stamens 5, included. Style short; 

 stigma capitate. Capsule few-seeded. 



Leaves without thickened midrib, linear-oblanceolate, about 1 cm. long; pedicels much 

 longer than the calyx, nearly equalling the bracts. 1. D. albertina. 



Leaves oblanceolate, about 5 mm. long, at least the old ones with the midrib thickened 

 on the under side ; pedicels shorter than the calyx. 2. D. carinata. 



