ALLIUM LILIACE 4 639 
+ + Stem simple, low, from a small tunicated bulb: leaves linear, 
without veinlets: anthers attached by the base: seeds flat. 
10 Lloydia Stem sparingly leafy, bearing a solitary flower with spread- 
ing persistent 3-nerved equa! segments. 
+ + + Stem low, 2-leaved, from an oblong corm: anthers attach- 
ed by the base: seeds turgid. 
11 Erythronium Leaves broad: perianth-segments oblanceolate, callous- 
toothed each side of the grooved nectary. 
* * Outer segments of the perianth smaller, somewhat sepal-like ; 
the inner broad and usually bearded: stigmas sessile. 
12 Calochortus Stem usually lax or flexuous, from a coated corm: 
anthers attached by the base: capsule usually septicidal. 
1 ALLIUM L. Sp. 294, 
Perennial herbs mostly with tunicated bulbs, a peculiar odor, 
lanceolate or linear leaves and rather small flowers in a terminal 
simple umbel. Perianth of 6 nearly equal distinct lanceolate to 
linear more or less spreading 1-nerved segments that are often 
gibbous at base, and subtended bv 2 or 3 membranous separate 
or united bracts. Pedicels not jointed. Stamens 6 inserted on 
the base of the segments :filaments filiform: anthers mostly ovate- 
oblong, versatile. Ovary sessile, subglobose, deeply 3-lobed 
with a very short axis: ovules mostly 2, 1-several, at the hase of 
each cell, ascending: style filiform, jointed on the axis: stigmas 
small. Capsule obtusely 3-lobed, loculicidally dehiscent. Seeds 
obovoid and wrinkled, with thin black testa. 
§ I Bulbs cespitose, narrowly oblong and crowning a more 
or less persistent rhizome, coats membranaceous without peculiar 
reticulation: spathes mostly 2-valved: scapes terete. 
*' Leaves terete and hollow. 
A. Schenoprasum L. Sp. 301. Scapes stout, 1-2 feet high, from ob 
long bulbs: umbel subcapitate, densely many-flowered, erect: spathe 2-val 
ved, its bracts broadly ovate: pedicels 1-3 lines long: flowers, rose-color, 
longer than the pedicels: segments of the perianth 4-6 lines long, lanceolate, 
acuminate: stamens included: filaments subulate: ovules 2 in each cell: 
capsule obtusely 3-lobed, about half as long as the perianth, not crested. 
Along rivers in moist or wet soil from the Columbia river to Alaska and the 
Great Lakes: also in Europe and Asia. 
* * Leaves flat or channeled. 
A. cernuum Roth. Rem. Arch. i, part 3, 40. Bulbs usually clustered 
on ashort rootstock, narrowly ovoid, with a long neck, 1-2 inches long: 
scapes slender, slightly rigid, 6-20 inches high; leaves linear, channeled, 
or nearly flat, 1-4 lines bruad, often equalling the scape: umbel loosely many- 
flowered, nodding: spathe 2-valved, the bracts lanceolate or shorter, decid- 
uous: pedicels filiform, 8-15 lines long: flowers rose color to white, the 
segments 2-3 lines long, broad and acutish: stamens and style exserted : 
filaments filiform ; ovules 2 in each cell: capsule 3-lobed shorter than the 
perianth, with 2 crests on the summit of each valve. On rocky banks and 
bluffs along streams, Oregon to Brit. Columbia and the Alleghany Mts. 
A. validum Watson Bot. King 350. Scapes very stout, 1-2%4 feet 
