270 ALSL\ACE.\E 



almost erect; calyx 4-5 mm. long; sepals narrowly scarious-margined ; petals 

 5-6 mm. long. Stellaria stricla Richards. »S'. luiigipcs Am. auth., not Goldie. 

 Wet meadows: w Ont. — Colo. — Calif. — B.C. Plain — Subalp. Mj^-Au. 



7. A. longipes (Goldie) Coville. Stem much branched, 4-angled, 1-3 dm. 

 high; leaves linear-lanceolate, 1-3 cm. long, glabrous, rather firm, shining; 

 pedicels 2-5 cm. long; calyx 4-5 mm. long; sepals broadly scarious-margined; 

 petals slightly exceeding the sepals. S. longipes Goldie. S. valida Goodding. 

 Wet places: Greenl. — ^Que. — -Colo. — Calif. — Alaska. Submont. — Mont. Jl-Au. 



8. A. laeta (Richards.) Rydb. Stem 5-15, rarely 20 cm. long, densely leafy; 

 leaves 1-2 cm. long, 2^ mm. wide, bluish green, sometimes glaucous, shining; 

 bracts foliaceous, or (in several flowered plants) the upper scarious; pedicels 

 erect; sepals narrowly lanceolate, very acute, almost equalling the capsule; 

 petals about 5 mm. long. Wet places in the mountains: Hudson Bay — N.M. — 

 Calif. — -Alaska — Arctic Sea. Mont. — Alp. My-Au. 



9. A. Edwardsii (R. Br.) Rydb. Stem 3-10 cm. high, glabrous or some- 

 what pubescent; leaves 3-10 mm. long, crowded, thick and keeled; bracts all 

 foliaceous or the upper with scarious margins; calyx about 4 mm. long; sepals 

 3-nerved, with narrow scarious margins; petals 5-6 mm. long. S. Edwardsii 

 R. Br. Arctic-alpine situations: Greenl. — Lab. — Hudson Bay — B.C. — Alaska. 

 Subalp. — Alp. Jl-Au. 



10. A. subvestita (Greene) Rydb. Stem branched at the base, 5-10 cm. 

 high, usually somewhat pilose; leaves numerous, linear-lanceolate, firm, 8-15 

 mm. long, 1-nerved; bracts ovate, scarious; calyx 2-3 mm. long; sepals ovate- 

 lanceolate, usually obtuse, scarious-margined, slightly shorter than the petals 

 and capsule. S. subvestita Greene. Open places: Hudson Bay — Alta. — B.C. — 

 Alaska. Subalp. — Boreal. Je-Jl. 



11. A. crassifolia (Ehrh.) Britton. Stem weak, ascending, with short inter- 

 nodes, 2-4 dm. long; leaves small, 6-20 mm. long, lanceolate or oblong-lanceolate, 

 acutish; cymes few-flowered; sepals ovate-lanceolate, acuminate, about 3 mm. 

 long, exceeded by the petals. S. crassifolia Ehrh. Wet groimd: Lab. — Pa.- — 

 Colo. — Alta. Mont. — Subalp. Je-Au. 



12. A, borealis (Bigel.) Britton. Stem erect, 1.5-4 dm. high, glabrous or 

 nearly so; leaves 1-4 cm. long; cyme leafy, several-flowered; pedicels often de- 

 flexed; sepals ovate-lanceolate, 3-4 mm. long. S. borealis Bigel. Wet places: 

 Lab. — N.J. — Colo. — -Calif. — Alaska. Submont. — Mont. Jl-S. 



13. A. brachypetala (Bong.) HoweU. Stem erect, 3-6 dm. high, sharply 

 4-angled; leaves linear-lanceolate, broad at the base, 2-6 cm. long; inflorescence 

 leafy; pedicels reflexed in fruit; calyx about 5 mm. long; sepals narrowly lance- 

 olate, very acute, about twice as long as the petals. S. brachypetala Bong. Wet 

 places: Mont. — Wyo. — Utah — Calif. — Alaska. Submont. — Mont. My-Au. 



14. A. oxyphylla (B. L. Robins.) Heller. Stem decumbent and rooting at 

 the base, 3-5 dm. high, glabrous except the pubescent lines; leaves elongate- 

 lanceolate, narrowed at the base, caudate-attenuate, 5-12 cm. long, sparingly 

 ciliate on the margin; pedicels at length deflexed; sepals about 6 mm. long, 

 lanceolate, attenuate, somewhat scarious-margined; petals about two-thirds as 

 long. /S'. oxyphylla B. L. Robins. Wet places: Ida. Submont. Jl. 



15. A. crispa (Cham. & Schlecht.) Holz. Stems weak, decumbent, 1-3 dm. 

 long; leaves ovate, usually crisp on the margins, 5-20 mm. long, short-acuminate; 

 flowers axillary, solitary; sepals lanceolate, acute, scarious-margined, exceeding 

 the acute capsule; petals minute or none. S. ci'ispa Cham. & Schlecht. A. 

 viridula Piper is a form with slightly ciliate petioles. Mountains, in wet places: 

 Alta.^ — Wyo. — Calif. — Alaska. Submont.— Mont. Ap-Jl. 



16. A. obtusa (Engelm.) Rose. Stems numerous, glabrous, decumbent or 

 prostrate, 5-15 cm. long, angled; leaves ovate, thin, acute, 8-10 mm. long; 

 flowers axillary, solitary; sepals ovate, obtuse, scarcely at all scarious, shorter 

 than the obtuse capsule. S. obtusa Engelm. Wet places in the mountains: 

 Alta.— Colo.— Utah— Wash.— B.C. Mont. Je-Au. 



