ROBINSON. — ALSINEA. 305 
ing only need be mentioned: var. r1GIDULA (Alsine biflora, var. rigi- 
dula, Fenzl, 1. c.), with leaves erect, firm in texture and rather closely 
imbricated ; and var. CARNOSULA (Alsine bi flora, var. carnosula, Fenzl, 
1. c.), more flaccid, with leaves spreading and slightly fleshy. 
? A. laricifolia, L. Slightly woody and much branched at the 
base: stems clothed with linear acicular secund ciliolate-denticulate 
leaves: fertile branches erect, simple, 4—7 inches in height, 2—5-flow- 
ered: sepals 3} lines in length, linear-oblong, 3-nerved: petals oblong 
or narrowly obovate, entire, twice as long as the calyx. — Spec. 424. 
—An alpine European species at various times reported from Alaska 
but still somewhat doubtful. Plants recently collected upon the Por- 
cupine River by J. H. Turner certainly possess much resemblance to 
the European plant, but differ in their shorter sepals and less leafy 
stems. It is not unlikely that they may prove merely a tall and long- 
petalled form of the preceding polymorphous species. 
++ ++ Petals broadly obovate, much exceeding the calyx: Alaskan. 
A. arctica, Srmv. Stems 1-3 inches long, glandular-pubescent : 
lower leaves narrow, linear, obtuse, slightly fleshy, crowded upon the 
bases of the stems, nearly or quite glabrous, sometimes slightly ciliated 
near the base, half a line in breadth; the upper leaves a little broader, 
aud more or less distant: flowers solitary, terminal upon slender 
glandular-pubescent peduncles, 5-7 lines in diameter: capsule 3}-4 
lines long, considerably exceeding the sepals: seeds minutely rough- 
ened and slightly crested. — Stev. in DC. Prodr. i. 404; Cham. & 
Schlecht. Linnza, i. 54; Hook. Fl. Bor.-Am. i. 100 (excl. vars.) ; 
Torr. & Gray, Fl. i. 181 in part. Alstne aretica, Fenzl, Verbreit. Alsin. 
18, & Ledeb. FI. Ross. i. 355; Regel, Ost-Sib. i. 338, 346 (excl. var. 
br eviscapa). — Western and Northern Alaska and adjacent islands. 
A. macrocarpa, Pursn. Stems 2-4 inches long, covered except 
near the ends with the densely imbricatéed lance-linear obtuse conspic- 
uously ciliated leaves; the latter 3 of a line broad: flowers solitary, 
terminal, often exceeding } inch in diameter: valves of the mature 
capsule fully 6 lines in length ; seeds slightly margined. — FI. 318 ; 
ham. & Schlecht. Linnea, i. 55; Hook. Fl. Bor.-Am. i. 101; Torr. 
& Gray, Fi. i, 182, 675. A. arctica, var. 8, grandiflora, Hook. Fi. 
Bor.-Am. i. 100, t. 34, ff B. Alsine macrocarpa, Fenzl, Verbreit. 
Alsin, 18; Regel, Ost-Sib. i. 354, t. 8, f. 6-9; A. arctica, var. 
breviscapa, Regel, 1. c. i. 347. Regel’s elaborate subdivision of _ 
the Siberian forms of this species is not warranted in America in the 
absence of abundant fruiting material. — Western Alaska near the 
“ast. —(Siberia.) 
VOL. XXIx. (x. 8 xxt.) 20 
