PRnmOSE FAMILY 649 



1. D. albertina Rydb, Cespitose perennial, but scarcely pulvinate; leaves 

 narrowly oblanceolate, about 1 cm. long, sparingly ciliate; scape 5-10 cm. long, 

 slender, sparingly hairy; bracts linear-lanceolate, 3-4 mm. long; calyx-lobes 

 elliptic, obtuse; corolla-lobes 2-3 mm. long. Androsace albertina Rydb. High 

 mountains: Alta. — Mont. Subalp, Je-Au. 



2. D, carinata (Torr.) A. Nels. Densely tufted and pulvinate perennial; 

 leaves numerous, crowded, oblanceolate, 4-6 mm. long, acute, ciliate; scape 1-5 

 cm. high, white-hirsute; bracts oblong or linear, about 5 mm. long; calyx-lobes 

 oval or oblong, obtuse; corolla white or yellowish, with a yellow eye; lobes oval, 

 3-4 mm. long. A. Chamaejasne A. Gray, not Host. A, carinata Torr. Doug- 

 lasia Johnstoni A. Nels. High mountains: Colo.— Utah— Alta. Mont, — Alp. 

 Je-Jl. 



4. ANDROSACE (Tourn.) L. 



Small scapose annuals. Leaves rosulate at the base of the stem. Flowers 

 umbellate, inconspicuous. Calyx campanulate or turbinate, persistent, 5-lobed 

 or 5-parted. Corolla salver-shaped, almost funnelform; tube shorter than the 

 calyx; throat constricted; lobes of the limb 5, imbricate in the bud. Stamens 5, 

 included, with short filaments. Style ver>^ short; stigma capitate. Capsule 

 short, 5-valved; seeds usually many. 



Calyx-tube in fruit obpjTamidal. its green teeth surpassing the capsule. 

 Bracts of the involucre ovate or oblong. 



Calyx-teeth longer tlian the tube; leaves linear-oblanceolate. thin. , 



^ 1. A. anzomca. 



Calyx-teeth shorter than the tube; leaves spatiilate or oblanceolate, thicker. 

 Scapes and pedicels several, di(Tase or ascenduig. 2. A. occidentalis. 



Scape single, 1-4-ftowered, erect; pedicels almost erect, 3. A. simplex. 

 Bracts of the involucre lanceolate or subulate. 



Calyx-teeth erect, lanceolate, usually shorter than the tube. 



Peduncles, pedicels and calyx-lobes densely puberulent, the latter exceeding 



the fruit *• A. puberuJenta. 



Peduncles and pedicels sparmgly puberulent or glabrous; calyx-lobes glabrous 



or nearly so, not exceeding the fruit. 



Corolla longer than the calyx. . , . , ^-^^ 



Peduncles 1-2 dm. high, many times longer than the strongly ascendmg 



or suberect pedicels. ^ , , * x. 



Calyx-lobes triangular, less than half as long as the cal>-x-tube. 

 •^ 5. ^. septentnonahs. 



Calyx-lobes lanceolate, more than half as long as the calyx-tube. 

 •^ 6. A. pxnetorum. 



Peduncles less than 3 cm. high, often equaOed or exceeded in length by 

 the spreading pedicels. 7. A. subumbellata. 



Corolla shorter than the calyx. . . ^' A. (^\lf^f^- 



Calyx-teeth more or less spreading, ovate-triangular, foliaceoas. equalling or ex- 

 ceeding the whitish tube ; coroUa shorter than the calyx. 9. A. sufyulijcra. 

 Calyx-tube m fruit hemispherical; teeth broadly triangular. 10. A, Jiliformis. 



1 A arizonica A. Gray. Leaves oblanceolate, 5-15 mm. long, acute, 

 entire or denticulate, thin, minutely puberulent; scapes usually few, ascending 

 or erect, slender, 3-8 cm. high; bracts broadly spatulate or oval, usually acute, 

 2-6 mm. long; pedicels ascending; calyx-lobes lanceolate to ovate, ^-^ mm. 

 long, rather spreading; corolla much shorter than the calyx. Plams and valleys: 

 Ariz!— Utah. Son. Mr-My. 



2 A occidentalis Pursh. Leaves oblanceolate or spatulate, 5-15 mm. 

 long 'entire or denticulate, puberulent; scapes 2-6 cm. high, puberulent; bracts 

 spatldate, obtuse, about 5 mm. long; pedicels ascending or spreadmg; calyx-lobes 

 lanceolate, ascending; corolla much shorter than the calyx. In dry or sandy 

 soil: Man.— 111.— Mo.— Tex.— B.C. Plain— Submont. Ap-Je. 



3 A simplex Rydb. Leaves oblanceolate, 3-6 mm. long, acute, entire, 

 minutely puberulent; scape 2-7 cm. high; bracts oval or lance-oval, 2^ mm 

 louff- nedicels suberect; cahTC-lobes lanceolate, about l.o mm. long, acute, coroUa 

 srJaVshoS Poor soil: B.C.-Utah-Alta. Son.-SubmonL 



Ap-My. . 



4 A Tjubenilenta Rvdb. Leaves oblanceolate, 1-3 cm. long, acute, entire 

 or siiiuatelv denticulate: peduncles 3-10 cm. long; bracts narrowly lanceolate, 

 o^^^i'' i„L Jr^t.l= «^rP«.Hin^r calvx-lobes lanceolate, strongly keeled: coroUa 



