104 LINACK.Ii:. i.ixcM. 



ous, liypogynous. Sepals valvate and petals convolute in the 

 bud, distinct or nearly so. Stamens as many as patals and. al- 

 ternate with them , united at base, sometimes with intermediate 

 processes p^jrsistent: 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 fo 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.'Geii. 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 scarious 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. digynnin Gray Proc. Am. Acad, vii, 334. About a span high, gla- 

 brous, stems slender, severa,l times forked, rather prominently angled 

 ab. ye: 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 : carpels 2 : capsule a little shorter 

 than the calyx, completely 4-celled. Washington to northern California. 



L. inlcrauthnm Gray 1. o. 333. A span to a foot high, glaucous, some- 

 what soft-pubescent, loosely dichotomous with slender terete branches : 

 leaves spatulate-oblong, obtuse or acutish, entire, 1-nerved: pedicels slen- 

 der, longer than the minute white flowers: sepals ovate-lanceolate to oblong 

 the mner slightly glandular ciliate: petals obovate, about twice the length 

 of the calyx, not toothed and without lateral appendages, the median ap- 

 pendage hgulate and loosely hairy : fllaments round-toothed and slightly 

 hairy at base: capsule ovoid, acute about equal to the calyx, the false 



