270 ALSINACEAE 



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

 5-6 mm. long. Stellaria stricta Richards. S. longipes Am. auth., not Goldie. 

 Wet meadows: w Ont. Colo. Calif .B.C. Plain Subalp. My-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, 2-4 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. 8, crassifolia Ehrh. Wet ground: 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.) Howell. 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. crispa 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. 



