no Flora of the Palouse Region 



the 5 shorter stamens sterile or wanting: ovary 5-lobed, 5-celled, 

 beaked by the united styles: tails of the carpels bearded on 

 the inner side, becoming twisted. 



E. cicutarium L'Her. Branched and spreading from the base, hairy- 

 pubescent, the weak stems 10-60 cm. long: leaves pinnate, 3-15 cm. long, 

 the leaflets pinnatifid into narrow acute lobes: peduncles generally longer 

 than the leaves, bearing 2-10 pink flowers: sepals acute, nearly as long as 

 the entire petals, these 4 mm. long: carpels puberulent, the tails 5-7 cm. 

 long, spirally-twisted when ripe. Introduced and becoming common. 



Family 40. LINACEAE. 



Herbs or shrubs: leaves all simple and entire, mostly alternate; 

 stipules mostly small or none: flowers perfect, regular, nearly 

 symmetrical, in axillary or terminal cymes, racemes or panicles: 

 sepals 5, rarely 4: petals as man}'' as and alternate with the sepals: 

 stamens of the same number and alternate with the petals: pistil 1 ; 

 styles 2-5; ovary 2-5-celled: fruit usually a capsule, often 4-10- 

 celled by false partitions; endosperm fleshy or none. 



178. LINUM. 



Annual or perennial herbs: bark tough and fibrous: leaves alter- 

 nate or opposite, sessile, entire, without stipules: flowers perfect, 

 in cymes or panicles: sepals, petals, stamens and styles 5, regu- 

 larly alternate with each other: pistil of 5 united carpels, 5-celled, 

 with 2 seeds in each cell; each cell divided in fruit by a false par- 

 tition making a 10-celled pod. 



Flowers blue, 2.5-3 cm. broad. L. LKWisil. 



Flowers yellow, very small. L. DIGVNUM. 



L. lewisii Pursh. Perennial, with a wood}- base, the erect branches 

 30-40 cm. high, glabrous throughout: leaves alternate, numerous, linear or 

 narrow, mostly very acute, 1-3 cm. long; stipules none: flowers few, in a 

 corymb: sepals ovate, acuminate, the inner margin scarious, usually entire, 

 4-6 mm. long: petals blue, 15-20 mm. long, obovate, without appendages: 

 filaments with slender appendages: capsules ovoid, longer than the calyx, 

 incompletely 10-celled and 10-valved. Common in low ground. 



L. digynum Gray. Annual, glabrous and glaucous, much branched, 

 10-15 cm. high: stems slender, striate: leaves opposite, elliptic, 5-10 mm. 

 long, the lower entire and obtuse, the upper acute and serrate; stipules none: 

 flowers in loose leafy racemes or corymbs, short- pedicelled: sepals ovate,' 

 unequal, glandular, serrate or lacerate: petals yellow, 3 mm. long, without 

 appendages. Rare near Pullman, in springy gravelly places. 



Family 41. EUPHORBIACEAE. 



Herb (in ours), with milky juice: leaves opposite, alternate or 

 whorled, entire or toothed, sessile or petioled; stipules present or 

 wanting: flowers monoecious or dioecious, often much reduced 



