108 BOTANY. 
Nortliern Chihuahua, New Mexico and Colorado; Saskatchewau, (Bourgeau.) 
Truckee Valley and West Humboldt Mountains, Nevada ; Wahsatch and 
Uintas ; 5-8,000 feet altitude ; May-July. (410.) 
(Enotheka marginata, Nutt. Perennial (?,) acaulescent or with a 
short suberect stem, (2-6' high,) more or less villous-pubescent or nearly 
glabrous ; leaves j)etioled, lanceolate, acute, variable in section, runcinate, 
lyrate, repandly toothed, or nearly entire ; calyx-tube elongated, (3-5' ;) pe- 
tals large, 1-2' long, obcordate, nearly white, becoming rose-color ; capsules 
sessile or upon short peduncles, coriaceous, oblong, somewhat attenuate above, 
straight or curved, sub-4-angled, more or less ribbed, with the ridges tuber- 
culate or smoo^i ; dehiscence loculicidal ; seeds nearly horizontal, obovate, 
smooth, sulcate. — This species must include CE. ccBspitosa and montana of 
Nuttall, as neither the pubescence, shape of the leaves, length of the calyx- 
tube and pedicels, nor form of the capsule, affords any constant distinctions. 
CE. eximia^ Gray, is probably but a luxuriant, more than usually caulescent 
form ; as yet collected only with very immature fruit. Specimens of un- 
doubted marginata approach it in size. From Wyoming and Colorado to the 
Sierras ; New Mexico, (Thurber.) Foot-hills through Nevada and around 
Salt Lake Valley ; 5,000 feet altitude ; May, June. (411.) 
Var. PURPUREA. A subalpine form ; canescent with a minute pubes- 
cence ; leaves lanceolate, acute, or ovate and obtuse, entire or slightly den- 
ticulate ; the calyx and corolla more or less purphsh, even before opening. 
East Humboldt Mountains, Nevada; 8-10,000 feet altitude; July, Au- 
gust. (412.) 
CEnothera viminea, Dougl. Annual, nearly glabrous, glaucous ; stems 
2 3° high, ascending or erect, branched ; leaves lanceolate, almost entire, 
nearly sessile ; calyx-tube funnelform, about equahng the segments ; petals 
lilac or rose-color, 7-8" long, exceeding the stamens ; filaments flat, unequal ; 
style exserted ; stigma-lobes short, oval, purple ; capsules sessile, cylindrical, 
1' long or more, shghtly 4-sided, tapering to the apex, canescently puberu- 
lent ; seeds ascending, in a single series, with a membranous border.—Cah- 
fornia. Collected by Stretch in Western Nevada, 
CEnothera glabella, Nutt. Annual, glabrous or nearly so ; stems 
erect, simple, or branched at base ; leaves sessile, lanceolate or ovate-lanceo- 
late, acuminate, serndate ; flowers very small, purple, axillary, sessile, soH- 
tary or 2-5 together; calyx-tube funnelform, shorter than the rather erect 
