36 CAEYOPHYLLACE^E. (FINK FAMILY.) 



8. A. biflora, var. camosula, "Watson. Stews creeping; branches 

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



cuadlate 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-ciUate, obscureh 

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

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

 .1. arctica, 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 subulate-triquetrous, 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. A/sine stricta, Wahl. A. Rossii of Hayd. Rep. 1870 and Fl. 

 Colorado. A. strict<t, Michx., of the Eastern Flora, becomes A. Michauxii, 

 Hook. Colorado, Wyoming, and northward. 



§ 3. Parts of the fiower sometimes in fours: valves of the capsule bifid: young 

 ovary 3-celled: seed appendaged at the hilum with a S77iall caruncle. — 

 Mcehrixgia. 



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

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

 lateral : sepals oblong, obtuse : petals exserted. — 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 Bhter Root Mountains to Washington and California; 

 also in New Mexico. 



6. SAGINA, L. Pearlwort. 



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

 terminal usually long-pedicelled flowers. 



1- S. decumbens, Torr. & Gray. Stems decumbent, ascending : leaves 

 someirhat serund, mucronate : peduncles ?nnch longer than the leaves: petals as long 

 as the sppaJs : stamens 5 to 10. — Including S. subulata, Torr. & Gray, of 

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

 and eastward. 



2. S. Lirmsei, Presl. Densely matted and decumbent, an inch or tiro high: 

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

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

 Mexico to Arctic America. 



3. S. nivalis, Lindb. Cespitose, sterns very short, scarcely ^ inch high: 

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

 scarcely eqwdling the petals. — Uinta Mountains, Watson. 



