226 ONAGRACE^E. (Enothera. 



13. CE. micrantha, Hornemann. 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 (E. bistorta. 



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



lube obconic, very short. 



-{- Capsule 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| 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. 



1 5. 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. (E. contorta, Hook. FL i. 214. (E. parvula, Nutt. in 

 Torr. & Gray, 1. c. 



Var. pubens, Watson, 1. c. Pubescence hirsute and spreading as in (E. 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. 



-t- -i- Capsule shorter, attenuated upward from the base : divarf annuals. 



16. CE. andina, N\itt. 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. 



(E. 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. 



* * * Flowers white or rose-colored, in a nodding spike: calyx-tube short-funnelform: 

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

 oblong : annuals. 



17. 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 2^ 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. 

 Beechey, 340 ; Hook. Ic. PL t. 339. 



