300 PROCEEDINGS OF THE AMERICAN ACADEMY. 



striation, reuiform, broadly margined. — Fl. i. 674 ; Durand, PI. Pratt. 

 83; Brew. & Wats. Bot. Calif, i. 69 ; Greene, Fl. Francis. 124. A. 

 verna, /?, Hook. & Arn. Bot. Beech. 325. Greniera Douglasii, Gay, 

 Ann. Sci. Nat. ser. 3, iv. 27. Alsine tenella, Torr. Bot. Mex. Bound. 

 36 (ex char, et hab.). — Barren hillsides and grassy slopes, S. Arizona, 

 Palmer, and S. California to Oregon, Howell, Henderson ; some smaller 

 flowered specimens with seeds of A. Douglasii have been collected by 

 Tkurber in San Diego, Calif. 



-i- -t- Seeds not flattened nor thin-margined. 



A. Howellii, Wats. Finely glandular-pubescent: stem terete, 

 purple, diffusely branched, more than a foot high : leaves rather thick, 

 obtuse, 4-7 lines in length ; the floral much reduced : flowers 2|— 3 

 lines in diameter : petals oblong, little exceeding the ovate glandular 

 nerveless sepals: capsule ovoid, pointed; valves narrowed to an 

 acutish apex ; seeds dark, slightly tuberculate-crested. — - Proc. Am. 

 Acad. xx. 354. 



A. Californica, Brewer. Smooth : the delicate filiform stems 

 branching from the base, erect, 2-4 inches in height : leaves very 

 short, slightly fleshy, 1-2 lines in length, obtuse : flowers 4 lines in 

 diameter : petals oblong, about twice the length of the ovate-oblong 

 nerveless or inconspicuously ribbed sepals : seeds small, finely rough- 

 ened. — Brewer in Boland. Cat. 6; Brew. & Wats. Bot. Calif, i. 69 ; 

 Greene, Fl. Francis. 124. A. brevi folia, var. (?) Californica, Gray, 

 Proc. Calif. Acad. iii. 101. — Dry hills, sandy soil. Central Calif, to 

 Grant's Pass, Oregon, Howell. 



A. pusilla, Wats. Smooth, very diminutive, l£-2 inches high: 

 stems purplish, filiform, branched from the base : leaves obtusish, but 

 1-2 lines in length: sepals not so strongly nerved as in the preceding, 

 1-1 1 lines in length : petals minute or wanting : seeds minute, smooth. 

 — Proc. Am. Acad. xvii. 367. A. Californica of Bot. Calif, (in 

 part). — Plains about Yreka, Calif. (Greene), to the Dalles of the 

 Columbia (Howell Bros.), and White Salmon, Wash. (Suksdorf). 



* * * * Annuals or slender-stemmed loosely matted perennials, 5-15 inches in 

 height : sepals lanceolate, acuminate or attenuate, strongly 3-5-nerved. 



•*- Puberulent. 



A. tenella, Nutt. Finely glandular-pubescent: stems very slen- 

 der, dichotomously branched almost from the base, 3-8 inches in 

 height: leaves attenuate from a connate prominently ribbed base to 

 a filiform often curved apex, 3-5 lines long ; the uppermost considera- 

 bly reduced : pedicels filiform, several times as long as the strongly 



