34 CARY0PHYLLE.2E. 



3. A. littoralis (Torr.) Pubescent, ascending, stoutish, 1 ft. high: 

 leaves 1 in. long, ovate, acute, rounded at base, rather thick: fl. in a ter- 

 minal compound cyme: sepals lanceolate, acute, 3 lines long, obscurely 

 3 -nerved, shorter than the 2-parted petals: capsule included within the 

 calyx. — Point Eeyes and Point Lobos. 



6. ARENARIA, Chabrseus (Sandwort). Mostly low tufted herbs 

 with sessile often rigid leaves and no stipules; flowers white, cymose- 

 panicled. Sepals 5 or 4. Petals as many, entire, emarginate, or 0, . 

 Styles 3, opposite as many sepals. Capsule globose or ovoid, dehiscent 

 into as many entire, 2-cleft, or 2-parted valves as there are styles. Seed 

 reniform-globose, or laterally compressed. 



* Low annuals; cymes foliaceous-br acted; valves of capsule 3, entire. 



4. A. Douglasii (Penzl), Torr. & Gray. Sparsely pubescent with 

 spreading gland-tipped hairs, or glabrous, slender, branching, 3 — 12 in. 

 high: leaves filiform, % — 1/£ in. long, ascending or spreading, slightly 

 connate at base: fl. large, on long slender pedicels: sepals oblong-ovate, 

 acute, 1*4 lines long, 1 — 3 nerved: petals obovate, 2 lines long or more: 

 capsule globose, equalling the calyx: seeds large, smooth, compressed 

 and acutely angled. — On stony hill-tops and sandy or gravelly plains. 

 March— May. 



5. A. Californica, Brewer. Glabrous, very slender, 2 — 3 in. high: 

 leaves lanceolate, obtusish, 1 — 2 lines long: fl. small, on slender pedicels: 

 sepals oblong-ovate, acute, 3-nerved. 1 — 1% lines long; petals spatulate, 

 2 lines: capsule oblong, as long as the calyx: seeds small, sharply muri- 

 culate.— Napa and Livermore valleys. April, May. 



6. A. palustris (Kell.), Wats. Glabrous, flaccid, decumbent, leafy 

 throughout, }< 2 — 2 ft. high: leaves linear-lanceolate, acute, % — 1 in. long: 

 fl. few, large, long-pedicelled: sepals elliptic, obtuse or acutish, nerve- 

 less, herbaceous, but with a narrow scarious margin, X% — 2 lines long: 

 petals oblong, twice longer: capsule oblong, shorter than the calyx: 

 seeds numerous. — Dr. Kellogg, writing of this from San Francisco 

 almost thirty years ago, says : "A plant very abundant in swamps in this 

 vicinity, known to us for the last ten years." Probably now extinct. 



* * Perennials; valves of capsule bifid. 



7. A. macrophylla, Hook. Stems low, ascending from running root- 

 stocks, mostly simple, leafy, puberulent above: leaves in 3 or 4 pairs, 

 lanceolate, acute at each end, 1 — 2 in. long, thin and flaccid: fl. few, on 

 slender pedicels: sepals ovate-oblong, acuminate, 1%-Vy^ lines long r 

 1-nerved, longer than the obtuse petals: capsule ovoid, nearly equalling 

 the calyx: seeds few, large, smooth.— Shady northward slopes of Mt. 

 Diablo, Mt. Hamilton, etc. 



