104 ; LINACE 2. LINUM. 
ous, hypogynous. Sepals valvate and petals convolute in the 
bud, distinct or nearly so. Stamens as many as petals and al- 
ternate with them, united at base, sometimes with intermediate 
processes p:rsistent: anthers oblong, introrse more or less ver- 
satile, 2-celled, dehiscing longitudinally. Styles 2-5. . Ovary 
sligh‘ly 4-10-lobed its cells equal in number to the stvles or 
twice as many from the intrusion of a false partition from the 
back of each cell, the cells 2-ovuled. Seeds oily with a little 
albumen. | > 
1 LINUM L. Gen. n. 389. 
Leaves estipulate. Flowers 5-merous, symmetrical, except that 
the carpels are fewer than the other parts in one section. Sepals 
persistent or at length deciduous. Petals fugacious. Capsule 
splitting through the false partitions and also septicidal in most 
species. 
* Pedicels elongated: flowers large blue. 
L. Lewisii Pursh. Fl. 210. Perennial, glabrous and glaucous 2-3 feet 
high: stems mostly cespitosely clustered, striate: leaves often somewhat 
crowded, oval-linear, acute or obtusish, 3-5-nerved: flowers somewhat cor- 
ymbose: sepals broadly oval mostly pointless, the inner searious margined : 
petals 5-8 lines long, thrice the length of the calyx: stamens equal to or 
twice the length of the sepals, appendages slender: capsule two or three 
times as long as the calyx ovoid, obtuse, incompletely 10-celled and 10- 
valved, the valves dehiscing widely above and separating nearly to the 
centre below, the septa ciliate. Alaska to Saskatchewan and the Great 
Plains, south to Arkansas and Texas, west to the Cascade and Siskiyou 
Mountains. - 
* * Pedicels often elongated, flowers of medium-size or mostly 
small, yellow, white or rose-purple: sepals usually glandular-ciliate, 
persistent: petals commonly with lateral teeth and 1-3 ventral ap- 
pendages at base: filaments without intervening appendages but 
sometimes 2-toothed at base: carpels 2-3 without cartilaginous inser- 
tions: styles distinct; stigmas small, oblique or subcapitate: capsule 
with firm septa, long, ciliate at base, the false partitions mostly incom- 
plete seeds mostly plump: annuals. 
L. digynum Gray Proc. Am. Acad. vii, 334. About a span high, gla- 
brous, stems slender, several times forked, rather prominently angled 
abi ve: leaves mostly opposite elliptical-spatulate, the lower obtuse and 
entire, the upper acute or mucronate and remotely serrulate, flowers at 
length corymbose or subracemose,small,yellow : pedicels short about equal 
to the flowers: sepals ovate-oblong rather obtuse, minutely serrulate, 
glandular and lacerate below, two of them mostly conspicuously longer 
and very blunt; petals spatulate-oblong, truncate or emarginate not ap- 
pendaged about a line long, one half longer than the sepals: stamens and 
pistils a little shorter than: the calyx: catpels 2: capsule a little shorter 
than the calyx, completely 4-celled. Washington to northern California. 
L. micranthum Gray |. ¢. 333. A span to a foot high, glaucous, some- 
what soft-pubescent, loosely dichotomous with slender terete branches: 
leaves spatulate-oblong, obtuse or acutish, entite; I-nerved: pedicels slen- 
der, longer than the minute white flowers: sepals ovate-lanceolate to oblong 
the inner slightly glandular ciliate: petals obovate; about twice the length 
of the calyx, not toothed and without lateral appendages, the median ap- 
pores ligulate and loosely hairy: filaments round-toothed and slightly 
airy at base: capsule ovoid, acute about equal to the calyx, the false 
