Part 1, 1907] IJXACEAE 85 



glandular-toothed ; inner sepals slightly shorter and narrower than the outer ones, and 

 rather more closely toothed; petals pink, 5.5-6.5 mm. long; filaments subulate; styles 

 clavellate ; capsules ovoid, about 2.5 mm. long, nearly or quite as long as the sepals. 



Type locality : Near Epperson's, Lake County, California. 

 Distribution : Northern California. 



2. Hesperolinon adenophyllum (A. Gray) Small. 



Linum adenophyllum A. Gray, Proc. Am. Acad. 8 : 624. 1873. 



Plants 0.5-3 dm. tall, the stem simple at the base, repeatedly forked above, purplish, 

 especially below, minutely pubescent especially above the nodes, or glabrate ; leaves 

 numerous, the blades lanceolate to linear, 5-30 mm. long, closely and conspicuously 

 glandular-toothed, somewhat acuminate, involutely folded, partly clasping ; bracts similar 

 to the leaves but smaller ; pedicels slender, longer than the calyx at maturity ; outer sepals 

 oblong-lanceolate to narrowly or linear-lanceolate, becoming 4-5 mm. long, very sparingly 

 glandular-toothed, somewhat acuminate ; inner sepals usually slightly smaller than the 

 outer ones and mostly with approximately the same number of teeth ; petals yellow, 4-6 

 mm. long; filaments filiform ; styles filiform ; capsules ovoid, about 2 mm. long, surpassed 

 by the sepals. 



Type locality : Clear Lake, California. 

 Distribution : Northern California. 



3. Hesperolinon Clevelandii (Greene) Small. 



Linum Clevelandii Greene, Bull. Torrey Club9: 121. 1882. 



Plants 1-3 dm. tall, the stem simple at the base, dichotomous above, usually purple, 

 puberulent or glabrate ; leaf-blades linear or narrowly linear-spatulate near the base of the 

 stem, or linear-lanceolate above, mostly 9-21 mm. long, acutish, entire, more or less 

 villous above, narrow at the base, somewhat involute ; bracts similar to the leaves but 

 smaller ; pedicels filiform, becoming 9-20 mm. long ; outer sepals lanceolate, becoming 

 about 3 mm. long, acute, entire, glabrous ; inner sepals ovate-lanceolate, shorter than the 

 outer ones, sparingly glandular-toothed ; petals yellow or yellowish, 4-5 mm. long; capsules 

 ovoid, about 3 mm. long, slightly surpassing the sepals. 



Type locality : Allen's Springs, California. 

 Distribution : Middle and northern California. 



4. Hesperolinon Breweri (A. Gray) Small. 



Linum Breweri A. Gray, Proc. Calif. Acad. 3: 102. 1864. 



Plants 1-3.5 dm. tall, sparingly branched above, more or less glaucous; leaf-blades 

 linear-filiform or almost filiform, 1-2 cm. long, entire, the stipular glands very prominent ; 

 bracts similar to the leaves but smaller ; pedicels shorter than the sepals, at least during 

 anthesis; flowers spreading; outer sepals oblong-ovate to lanceolate, becoming 3.5-4 nun. 

 long, sparingly glandular-toothed ; inner sepals slightly smaller than the outer ones ; 

 petals yellow, 5.5-7.5 mm. long ; capsules ovoid, about 2.5 mm. long, usually scarcely 

 equaling the sepals. 



T\ ii: Li ICALITY ; Diablo Range, near Marsh's Ranch, California. 

 Distribution : Western middle California. 



5. Hesperolinon micranthum (A. Gray) Small. 



Linum micranthum A. Gra3', Proc. Am. Acad. 7 : 333. 1868. 



Plants 1-4 dm. tall, the stem commonly simple at the base, dichotomous or branched 

 and with dichotomous branches above, somewhat glaucous and more or less minutely 

 pubescent especially about the nodes ; leaf-blades narrowly linear, or those of the lower 

 stem-leaves narrowly linear-spatulate, mostly 1-3 cm. long, acute or acutish, entire, more 

 or less involute ; bracts similar to the leaves but smaller ; pedicels filiform, stiff ; flowers 

 mostly nodding; outer sepals oblong-lanceolate to lanceolate, becoming 2.5-3.5 mm. long, 

 with few irregularly-placed glandular teeth ; inner sepals slightly smaller than the outer 



