398 LINACEAE 



Jepson 5458. S. Cal. : North Creek wash, Mt. Pinos, TIall 6435 ; Fish Creek, San Bernardino Mts., 

 J. Grinnell 3; Strawberry Valley, Mt. San Jacinto, Jepson; Middle Peak, Cuyamaca Mts., Peir- 

 son 5995. 



Var. alplcola Jepson var. n. Stems 5 to G inches high, the lower portion densely clothed with 

 leaves; leaf-blades linear, 1 to 4 lines long; flowers 4^! to 5V^ lines long. — (Caules unc. 5-6 alti, 

 infra dense foliosi; folia linearia, lin. 1-4 longa; flores lin. 4V^-5V^ longi.) — Mt. Whitney, 11,600 

 feet, nail 8432 (type). 



Refs. — LiNUM LEWisii Pursh, Fl. 210 (1814), type loc. "valleys of the Eocky Mts. and on 

 the banks of the Missouri", Lewis; Jepson, Man. 586 (1925). Var, alpicola Jepson. 



3. L. digynum Gray. Stem slender, mostly simple below, corymbosely forked 

 above, 3 to 9 inches liiph; herbap:e glabrous, somewhat glaucous; leaves usually 

 opposite, their blades elliptic to spatulate-oblong or narrowly ovate, 3 to 9 lines 

 long, the lower entire, the upper sharply serrate; flowers short-pedicelled, and in 

 somewhat racemose clusters along the terminal branches; sepals very unequal, 

 obtuse; petals yellow, not appendaged, IV2 lines long; capsule with 2 carpels, the 

 false septa complete. 



Moist grassy meadows, 3500 to 4700 feet : Sierra Nevada from Fresno Co. to 

 Siskiyou Co. North to Washington. June-July. 



Locs. — Bass Lake, Fresno Co., C. E. Jenney ; Hoeltzels Mdw., Mariposa Co., Congdon; Hog 

 Ranch, Tuolumne Co., KecTc 4" Seusi 302; Hetch-Hetchy, Chesnut 4" Drew; Quincy, Plumas Co.; 

 Sisson. 



Eefs. — LiNUM DIGYNUM Gray, Proe. Am. Acad. 7:334 (1868), type loc. Mariposa Trail, 

 Yosemite Valley, Bolander; Jepson, Man. 586 (1925), CathartoUnum digynum Small, N. Am, 

 FI. 25:78 (1907). 



4. L. breweri Gray. Vaca Flax. Stem 9 to 14 inches high, with a few short 

 branches at the top ; herbage glabrous and glaucous or sometimes minutely puberu- 

 lent in the forks; leaf -blades narrowly linear, 5 to 11 lines long; sepals broadly 

 lanceolate, attenuate, some slightly glandular on the margin; petals yellow, ob- 

 ovate, not emarginate, 3 to 31^ lines long, more than twice as long as the sepals; 

 claw of petals with a quadratish or oblong central scale, the lateral scales smaller, 

 all hairy on the upper side. 



Dry hill or canon sides, grassy opens amongst oaks or brush, 400 to 1700 feet : 

 inner Coast E-ange from Mt. Diablo to the Vaca Mts. May-June. 



Locs. — Donner Canon, Mt. Diablo, Jepson 7568; upper Suisun Valley, Jepson 13,532; Ara- 

 quipa Hills, nw, Solano Co., Jepson 13,531; Vaca Mts., Jepson 13,533 (Gates Canon), 13,534 

 (Miller Canon). 



Refs. — LiNUM BREWERI Gray, Proe. Cal. Acad. 3:102 (1864), type loc. Marshs Ranch, Mt. 

 Diablo, Brewer; Jepson, Fl. W. Mid. Cal. 245 (1901), ed. 2, 241 (1911), Man. 587 (1925). 

 Hesperolinon breweri Small, N. Am. Fl. 25:85 (1907). 



5. L. congestum Gray. Marin Flax. Stem corymbosely branched at the 

 middle or above, 8 to 18 inches high; leaf -blades linear to lanceolate, somewhat 

 pubescent, 4 to 13 lines long, with prominent stipular glands; flowers terminating 

 the branches in close clusters; sepals pubescent; petals rose-pink in bud, dull white 

 in anthesis, 3 to 4 lines long; middle scale very slender, elongated, 4 to 5 times as 

 long as the lateral scales, sometimes hairy; capsule short-ovoid, nearly as long as 

 the calyx. 



Open hills, 20 to 1000 feet : coastal region from Marin Co. to San Mateo Co. 

 June. 



Locs. — Tiburon, Jepson 12,926; San Francisco, Alice King; San Mateo Co., Greene. 



Refs. — LiNUM CONGESTUM Gray, Proe. Am. Acad. 6:521 (1865), type loc. Marin Co., Bolan- 

 der; Jepson, Fl. W. Mid. Cal. 244 (1901), ed. 2, 241 (1911). Hesperolinon congestum Small, 

 N. Am. Fl. 25:86 (1907). L. calif ornicum var. congestum Jepson, Man, 587 (1925). 



6. L. californicum Benth. Stem paniculately branched above, with angled 

 or striate branches, % to 2 feet high ; herbage glabrous and glaucous ; leaf-blades 

 linear, 5 to 12 lines long, with prominent stipular glands; sepals lanceolate, the 



