36 CABYOPHYLLACE^:. (FINK FAMILY.) 



8. A. biflora, var. caruosula, Watson. Sterna creeping; branches 

 mostly 1-flowered : leaves narrowly linear, nerveless : sepals linear, very obtuse, 

 cucullate at the summit : petals much longer than the sepals and capsule. — 

 Bibl. Index, i. 94. A. alpina of the Fl. Colorado. Colorado. 



Var. obtusa, Watson. Leaves obtuse, carinate, serrulate-ciliate , obscurely 

 3-nerced: peduncles glandular-pubescent: petals about half longer than the 

 oblong sepals. — Watson, 1. c. A. arctica of Hayd. Rep. for 1870-72, and 

 A. urctica, var. obtusa, of Bot. King's Exp. and Fl. Colorado. Abundant in 

 the mountains of Colorado, the Uintas, about Yellowstone Lake, and north 

 ward throughout the Arctic regions. 



9. A. stricta, Watson. Leaves subtdate-triqnetrous, rather obtuse, scarcely 

 equalling the flower or exceeding the calyx, mostly shorter than the internodes, 

 with manifest lateral nerves : peduncles 1-flowered : petals sometimes wanting. 

 — Watson, 1. c. Akine stricta, Wahl. A. Rossii of Hayd. Rep. 1870 and Fl. 

 Colorado. A. stricta, Michx., of the Eastern Flora, becomes A . Michauxii, 

 Hook. Colorado, Wyoming, and northward. 



§ 3. Parts of the flower sometimes in Jours: valves of the capsule bifid: young 

 ovary 3-ceUed: seed appendaged at the hilum with a small caruncle. — 

 M<EHRINGIA. 



10. A. lateriflora, L. Sparingly branched, erect, minutely pubescent : 

 leaves oval or oblong, obtuse: peduncles usually 2-flowered, soon becoming 

 lateral : sepals oblong, obtuse : petals exserled. — From Colorado to Alaska, 

 and eastward across the continent. 



11. A. macrophylla, Hook. Stems ascending, mostly simple, puberu- 

 lent above: leaves 3 to 4 pairs, narrowly lanceolate, acute at each end, bright 

 green : flowers few on slender pedicels : sepals ovate-oblong, acuminate : petals 

 included. — From the Biiter Root Mouniaius to Washington and California; 

 also in New Mexico. 



6. SAGINA, L. Pearlwort. 



Low green herbs, with subulate or filiform glabrous leaves, ami small 

 terminal usually long-pedicelled flowers. 



1. S. deeumbens, Torr. & Gray. Stems decumbent, ascending : leans 

 somewhat secund, mucronate : peduncles much longer than the leaves : petals as hug 

 as the sepals: stamens 5 to 10. — Including S. subu/ata, Torr. & Gray, of 

 Gray's Manual, where the species is credited to Wimmer. Rocky Mountains 

 and eastward. 



2. S. Iiinnsei, Presl. Densely matted and decumbent, an inch or two high : 

 leaves somewhat fascicled, pungent : flmrers on long pedicels, at length nodding : 

 sepals exceeding the petals: stamens 10. — Spergnla saginoides, L. From New 

 Mexico to Arctic America. 



3. S. nivalis, Lindb. Cespitoie, stems very short, scarcely £ inch high: 

 leaves mucronate : peduncles short, strict : sepals with membranous margins, 

 scarcely equalling the petals. — Uinta Mountains, Watson. 



