EVENING- PRIMROSE FAMILY. 



337 



prostrate and radiating from a central rosette crowning the taproot, 

 1£ to 2\ ft. long, rigid and tough; leaves thick, canescently pubescent, 

 obovate to oblong or oblong-oblanceolate, obtuse, short-petioled or 

 the uppermost sessile, \ to 1 in. long; calyx-tube 1 to 2 lines long; 

 the petals 3 to 5 lines long, broader than long and more or less trun- 

 cate at apex; capsule acutely quadrangular or almost fluted, stout, 

 chartaceous, linear-oblong, \ in. long, spirally once coiled, the atten- 

 uate apex mostly spreading; seeds in 1 row in each cell as in all the 

 following. 



Drifting sandhills: Oakland, San Francisco and southward along 

 the coast. Flowering in summer, and more or less at all seasons. 



7. CE. micrantha Hornem. Branches procumbent from a short 

 primary axis, not rigid or tough; pubescence hirsutulous; leaves 

 oblong-lanceolate, H in. long, slightly undulate, more or less dentic- 

 ulate; petals entire or emarginate, 1 to 2 lines long; capsule sharply 

 4-angled, 1 in. long, contorted, often coiled into a single spiral, 

 slightly attenuate upwards, sparsely hirsutulous. less chartaceous 

 than in the last. 



Along the coast from San Francisco southward. May-June. 



8. CE. hirtella Greene. Simple or with simple branches from the 

 base, the branches suberect, flowering from the base or near it, 9 to 

 13 in. high, hispidly hirsute; leaves round or oblong-ovate, sub- 

 cordate, crenately toothed, crisped, 6 to 9 lines long, the radical 

 oblong or oblong-spatulate. narrowed to a petiole, \\ in. long; petals 

 1 line long; capsule quadrangular, 8 lines long, contorted, not spirally 

 coiled or rarely, submembranaceous as in the next two species. 



Dry mountain ridges: Lower Lake; Vaca Mountains; Mt. Diablo; 

 Pajaro Hills. May. This and the two species preceding have radi- 

 cal leaves in a tuft or rosette, in this species disappearing rather 

 early. The next two species are without a radical rosette or tuft. 



9. CE. strigulosa T. & G. Wholly glabrous or minutely pubes- 

 cent with short scattered hairs, the ovaries gray-pubescent; stems and 

 branches slender, <> to 10 in. high, at first erect, at length diffusely 

 branched; leaves linear, remotely low-denticulate, most of them \ in. 

 long; petals 1 to 2 lines long, yellow, aging to bright red; anthers 

 innate; capsule linear, straight, | to 1| in. long, } line wide. 



Common throughout California, especially in sandy soil: Mendocino 

 Co.; Yuba Co.; Calistoga; Alameda; San Francisco; Southern Cali- 

 fornia. May-June. Often only 2 to 4 in. high and strict, or with 

 decumbent branches 1 ft. long. 



10. CE. dentata Cav. Branched from the base, bushy, 9 in. high; 

 sparsely pubescent with short stiflish spreading hairs; leaves linear, 

 mostly tapering to both ends, \ to \ in. long, denticulate, often with 

 smaller leaves fascicled in the axils; petals yellow changing to dull 

 red, round-obovate, 2 to 3 lines long; anthers versatile; capsule simi- 

 lar to no. 9, 1 in. long, arcuate-recurved. 



Antioch and common southward on the sandy San Joaquin plains. 

 Middle of Apr. -June. This is the (E. campestris of Greene, who 

 regards the California plant as distinct from the Chilian plant, the 



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