288 PROCEEDINGS OF THE AMERICAN ACADEMY. 
base, acute or acuminate, about an inch in length, with definite intra- 
marginal veins: flowers rather numerous in the forks of the branches; 
peduncles becoming horizontal or reflexed: sepals 2} lines long, acute: 
petals of nearly equal length, cleft almost to the base: capsule some- 
what shorter. — Pacif. R. Rep. iv. 69; Brew. & Wats. Bot. Calif. 
i. 68, — Coast of Marin Co., Calif.; Punta de los Reyes, Bigelow; 
Dillon’s Beach, Congdon. In habit much resembling the Old World 
S. dichotoma, L., of which it may well prove a form. It differs, how- 
ever, in its much more deeply cleft petals. 
- pubera, Micax. (Great Cuickweep.) Perennial, decum- 
bent, stout for the genus: stems pubescent in lines: leaves elliptic- 
oblong, finely ciliate, acute or obtusish, }—1} inches long, or on the late 
tall and mostly sterile shoots 3 inches in length: calyx nearly or quite 
smooth ; sepals 3-4} lines in length: stamens 10: capsule globose, not 
exceeding the calyx. — Fl. i. 273; Darlingt. Fl. Cest. 274; Torr. & 
Gray, Fl. i. 183. — Rocky woods, Pennsylvania to Georgia, westward 
to Tennessee, Kentucky, and Indiana. Professor Britton calls atten- 
tion to the fact that the teeth of the capsule become circinate-revolute, 
as in Cerastium § Strephodon. Miss E. F. Andrews states that the 
petals are sometimes cleft half their length, in other cases nearly to 
the base, which is confirmed by specimens. 
* * Petals retuse or shortly bifid, divided but }-} the way to the base, com: 
monly considerably exceeding the calyx: species approaching Arenar'@. 
+ Glabrous or nearly so. 
S. uniflora, Wart. Weak and slender: stems decumbent oF 
suberect, a foot in length: leaves linear, acute, or the lower lanceolate, 
gradually narrowed below, mucronate, 8-12 lines in length ; the floral 
much reduced: flowers few, solitary, on elongated slender peduncles : 
calyx soft in texture; sepals scarcely veined. — Car. 141; 40r- . 
Gray, Fl. i. 184; Chapm. Fl. 50. Arenaria glabra, Ell. Sk. i. 520, 
not Michx.; Wood, Bot. & Fl. 56. Alsine Walteri, Gray, Gen. ii, 34. 
— Moist meadows, North Carolina to Florida and Alabama, Winchell; 
March to May. 
S. macrorerata, Torr. & Gray, appears to be only a for 
Arenaria patula, Michx., a species in which the petals vary from 
entire to retuse or even bifid. 
S. Hotosrea, L. Stem sharply 4-angled, 6-18 inches high: l 
narrowly lanceolate, spreading, long-attenuate from near the rou 
_ sessile base, often ciliated, 1}-3 inches in length, 1-nerved: s¢ 
lance-oblong, thin, nerveless, 4 lines in length, exceeded by the large 
white petals: styles 3: valves of the capsule at length circinate- 
m of 
eaves 
nded 
pals 
