ROBINSON. — ALSINEA. 301 
3-ribbed sepals ; the latter equalled or more or less exceeded by the 
oblong petals: valves of ovoid capsule exceeding the sepals; seeds 
small, margined with a fine muriculate crest (under a strong lens). — 
Nutt. in Torr. & Gray, Fl. i. 179; Eaton & Wright, N. A. Bot. 133 
(excl. Arkansas spec.) ; Macoun, Bot. Gaz. xvi. 286. A. tenuifolia, 
var. Americana, Fenzl ex Torr. & Gray, FI. i. 674. Greniera tenella, 
Gay, Ann. Sci. Nat., ser. 3, iv. 27. Alsine tenella, Torr. Bot. Wilkes 
Exp. 248, — Rocky places, flowering in midsummer; Oregon, Nuttall, 
Tolmie, Hall, Howell, to British Columbia, Kamloops acc. to Macoun ; 
Nanaimo, Miss Cooley. Like A, Grenlandica of the Eastern States, 
‘this species seems to occur either in mats or in a segregated state. 
In the former condition it considerably resembles A. stricta, Michx., 
but is to be distinguished by its small flowers and puberulent inflo- 
rescence. It differs from A. patula in its broadly elliptic petals not at 
all truncate or retuse. 
_ A; patula, Micux. Stem diffusely branched, 2 inches to a foot 
in height, often almost filiform: leaves spreading, slightly fleshy: 
inflorescence dichotomous ; pedicels filiform, spreading: sepals lan- 
ceolate, attenuate, with 3-5 prominent converging nerves, slightly 
indurated, a little over 2 lines in length, usually minutely glandular: 
petals twice as long, entire or retuse, obcordate: the obtuse valves of 
the capsule about equalling the calyx; seeds black, minutely rough- 
ened, — FJ. i, 273; Torr. & Gray, Fl. i. 180; Gray, Man. ed. 5, 91; 
Hill, Bull. Torr. Club, xvii. 172; Macmillan, Bot. Gaz. xv. 332. A. 
Pitcheri, N utt., and (?) A. tenella, Nutt. in Torr. & Gray, l. c., so far as 
Arkansas plants are concerned. _Alsine microsperma, Fenzl ex Torr. 
& Gray, Fl. i. 674. _A. patula, Gray, Man. ed. 2, 58; Chapm. Fl. 
49. A, Pitcheri, Wood, Class-Book, 260; Chapm. Fl. (Suppl.) 608. 
Stellaria macropetala, Torr. & Gray, Fl. i. 184 (Alsine macropetala, 
Gray, Gen. ii. 84), differing only in the slightly more deeply divided 
Petals, which are themselves more or less variable, must be referred 
hither, where its identity of habit and calyx clearly indicates its affinity 
- — Kentucky to Alabama (Peters, Mohr) and Texas (Drummond, ~ 
o Buckley), northward to Chicago (Babcock, Hill) and Cass Co., 
imnesota (ace. to Macmillan). The leaves of this species are varia- 
rommonly narrowly linear or filiform, 4-7 lines in length, but 
Y occasionally become 14 inches long and a line wide. 
+ + Glabrous. 
: A. Stricta, Micux. Smooth, loosely matted: stems very numer- 
"8, slender, ascending, 3-15 inches high, leafy nearly to the middle: 
leaves subulate-setaceous, conspicuously fascicled in the axils: inflo- x 
5 
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