226 QNAGRACE^. CEnothera. 



1 3. CE. micrantha, Horneniann. A very variable species closely resembling 

 the last : flowers very small : the petals a line or two long, not spotted at the base, 

 entire or emarginate or sometimes 3-lobed at the summit : capsules 8 to 18 lines 

 long, about a line wide, usually much contorted. — Torr. & Gray, Fl. i. 509. 



From the Lower Sacramento to San Diego. Probably a mere variety of CE. bistorta. 



* * Flowers axillary, yellow, often reddish or turning red, mostly very small : calyx- 



tube obconic, very short. 



-i- Capside elongated, very narrowly linear, obtusely angled, slightly curved : slender 



leafy annuals. 



14. CE. dentata, Cavanilles. Usually diffusely branched, a span high or less, 

 more or less hirsute with short spreading hairs especially below, the pubescence 

 above often shorter and somewhat glandular or wanting : leaves linear, sessile, usu- 

 ally narrowed at base, denticulate, | to 1-J- inches long : petals rounded, entire, 2 to 

 4 lines long, rarely reddening : capsules an inch long or more, less than half a line 

 broad, somewhat attenuate at the summit. — Icon. iv. 67, t. 398; Torr. & Gray, 

 Fl. i. 511. 



Var. cruciata, Watson. Petals narrowly obovate to oblong, often emarginate, 

 2 lines long. — Proc. Am. Acad. viii. 594. 



From San Francisco southward ; also in the foot-hills of the Sierra Nevada : less frequent than 

 the following. A Chilian species ; perhaps also Australian. 



15. CE. strigulosa, Torr. & Gray. Like the last: nearly glabrous, the ovary 

 and calyx usually somewhat appressed-puberulent : leaves entire or sparingly dentic- 

 ulate : petals a line or two long, usually reddening : capsules sessile or upon a very 

 short pedicel adnate to the base of the leaf, abruptly obtuse or scarcely attenuate at 

 the summit. — Fl. i. 512. CE. contorta, Hook. Fl. i. 214. CE. parvula, Nutt. in 

 Torr. & Gray, 1. c. 



Var. pubens, Watson, 1. c. Pubescence hirsute and spreading as in CE. dentata, 

 especially below, often somewhat, glandular above and shorter. 



From the Columbia River to San Diego, frequent ; the variety also ranging eastward through 

 Northern Nevada to the Wahsatch Mountains. 



-s- +- Capside shorter, attenuated upward from the base : dwarf annuals. 



16. CE. andina, Nutt. Canescently puberulent, only 1 to 3 inches high, 

 branched: leaves linear-spatulate, entire, attenuate into slender petioles, a half to 

 an inch long : spikes leafy, many-flowered : petals a line long or less : capsules 3 to 

 6 lines long, obtusely angled, somewhat curved. — Torr. & Gray, Fl. i. 512. 



From Oregon and N. W. Nevada to Colorado ; probably in Northeastern California. 



CE. Guadalupensis, "Watson, Proc. Am. Acad. xi. 137, collected by Palmer on Guadalupe 

 Island, is stouter, with larger oblanceolate leaves, few flowers, and the capsule oblong-pyramidal, 

 half an inch long, rather acutely angled. 



* =.v * Flowers white or rose-colored, in a nodding spike: calyx-tnbeshort-funnelform: 

 capsule narrowly linear, terete or obtusely angled, much contorted: seeds linear- 

 oblong : annuals. 



1 7. CE. alyssoides, Hook. & Arn. Slender, canescently puberulent : stems 

 simple or branching from the base, erect or ascending, 3 to 12 inches high : leaves 

 oblanceolate or oblong-lanceolate, narrowed into a slender petiole, entire or repand- 

 denticulate, 1 to 1\ inches long ; the floral leaves much smaller but similar : spike 

 often many-flowered, becoming elongated : calyx-tube 2 or 3 lines long, equalling 

 the rounded petals : capsules an inch long or less, very slender, not attenuate 

 upward from the base, puberulent : seeds ash-colored, very minutely pitted. — Bot. 

 Eeechey, 340 ; Hook. Ic. PI. t. 339. 



