OF ARTS AND SCIENCES. 233 



short, abruptly acute : pedicels stouter : perianth-segments more ob- 

 tuse, broader, 3 or 4 lines long. — Proc. Calif. Acad. 3. 54, f. 13. 

 A. tribracteatum, var. Andersoni, Watson, 1. c. 353. East base of 

 Sierra Nevada (Carson City to Plumas County). 



38. A. macrum. Bulb-coats without reticuJation : leaves more 

 distinctly sheathing : scape an inch or two high : spathe-valves 2, 

 abruptly acute : umbel more spreading ; pedicels slender, 2 or 3 lines 

 long : perianth white or pinkish, 2 or 3 lines long ; segments narrowly 

 lanceolate, acuminate, scarcely exceeding the stamens and style : cells 

 of the ovary bordered above by a thick obtuse ridge. — Union County, 

 Oregon, on rocky hills ; W. C. Cusick, n. 40, 1877. 



§ 3. Bulbs ovate, not rhizomatous, the membranous coats mostly without 

 reticulation : leaves 2, broadly linear, flat and falcate, thick : scape stout, 

 much compressed and 2-winged, low and mostly shorter than the leaves. 

 * Spathe 2-valved : stamens included : ovary mostly crested. 



39. A. falcifolium, Hook. & Arn. Scape 2 or 3 inches high: 

 flowers rose-colored, 4 to 6 lines long ; segments lanceolate, attenuate 

 and spreading above, minutely glandular-serrate, nearly twice longer 

 than the stamens and style : capsule acute with 3 short narrow central 

 crests. — Bot. Beechey, 400 ; Watson, 1. c. 488, t. 36, f. 7, 8. Coast 

 Ranges (Sonoma to Humboldt Counties). 



40. A. Breweri. Flowers deep rose-color, 5 or 6 lines long ; seg- 

 ments lanceolate, acute, nearly erect, not serrulate, a third longer 

 than the stamens and style : ovary and capsule with a thick slightly 

 lobed crest at the apex of each cell. — Summit of Mount Diablo, 

 California ; n. 1060, Brewer. 



41. A. anceps, Kellogg. Bulb-coats sometimes with minute trans- 

 versely oblong reticulation : pedicels very slender, 6 to 9 lines long : 

 flowers nearly white with purplish midveins, 3 or 4 lines long ; seg- 

 ments very narrowly lanceolate, acuminate, lax, scarcely gibbous at 

 base, little exceeding the stamens and style : capsule-cells with two 

 broad obtuse crests. — Proc. Calif. Acad. 2. 109, f. 32; Watson, 

 1. c. 352, t. 36, f. 4-6 (faulty in showing the capsule without crests). 

 East base of the Sierra Nevada (Carson City to Modoc County) ; 

 Oregon (Columbia Valley; J. Howell). 



42. A. pleianthum. Scape 4 or 5 inches high : flowers numerous, 

 apparently white, 4 or 5 lines long, on rather stout pedicels 6 to 10 

 lines long ; segments lanceolate, acuminate, gibbous at base, nearly 

 twice longer than the stamens : ovary and capsule prominently 

 6-crested. — Blue Mountains, Oregon (John Day Valley), and S. 

 Idaho ; Rev. R. D. Nevius. 



