OF ARTS AND SCIENCES. 231 



26. A. Bigelovii, Watson. Bulb-coats very dark ; reticulation 

 distinct, of nearly regular vertically oblong cells : scape 3 to 6 inches 

 high : flowers rather few, on stout pedicels 4 to 8 lines long, tinged 

 with deep rose-color ; segments oblong-lanceolate, acute, 4 to 6 lines 

 long : filaments all with a rather narrowly deltoid base : crests con- 

 spicuous. — King's Rep. 5. 487, t. 38, f. 8, 9. Arizona (n. 532, 

 Palmer) and New Mexico. 



27. A. lac UNO sum. Bulb-coats light-colored, thick and distinctly 

 pitted by the quadrate or transversely oblong reticulation, the outlines 

 very minutely sinuous : scape 3 to 6 inches high : flowers usually few 

 (5 to 20), on pedicels 3 to 5 lines long ; segments 3 or 4 lines long, 

 oblong-lanceolate, acuminate, a little longer than the filaments, which 

 are all narrowly deltoid at base : cells of the ovary with an obtuse 

 thickened ridge toward the top on each side. — Coast Ranges (Santa 

 Clara County, on Mariposa Peak ; n. 1284, Brewer). 



28. A. Nevii. Bulb-coats white or reddish, thin, with compressed 

 transversely oblong reticulation (as in A. tribracteatum), the cell- 

 outline not at all sinuous : scape slender, 6 or 8 inches high : pedicels 

 rather few, slender, 4 to 6 lines long : perianth-segments light rose- 

 color, lanceolate, acuminate, 3 lines long, scarcely exceeding the sta- 

 mens and style : cells of the ovary with a thick short crest on each 

 side near the summit. — Oregon (Hood River; Rev. R. D. Nevius). 



= = Filaments filiform above the obscurely and obtusely lobed disk. 



29. A. campanulatum. Bulb-coats not known: scape 4 to 6 

 inches high : umbel somewhat nodding, many-flowered, the slender 

 pedicels 4 to 15 lines long : flowers somewhat campanulate, the 

 segments broadly ovate-lanceolate, acute or abruptly and shortly 

 acuminate, 4 lines long, a third longer than the very slender stamens 

 and style: capsule prominently crested. — Sierra Nevada (Mariposa 

 to Plumas Counties ; n. 4943, Bolander ; Mrs. M. E. P. Ames). 



30. A. Bidwellle. Reticulation of bulb-coats not known : scape 

 2 or 3 inches high : umbel rather few-flowered, the pedicels a half- 

 inch long: perianth-segments narrowly lanceolate, acuminate, 2 1 or 3 

 lines long, scarcely exceeding the stamens and style : crests con- 

 spicuous. — Sierra Nevada (above Chico, Mrs. J. Bidwell, May, 1878). 

 * * * Bulb-coats not fibrous : leaf solitary, narrowly linear or filiform, equal- 

 ling or somewhat exceeding the low scape (2 to 5 inches) : capsule promi- 

 nently 6-crested : stamens and style included. 



t- Stigma 3-cleft with linear lobes : leaf revolute-filiform : scape very slender. 



31. A. Parryi. Bulb-coats reddish-brown, without reticulation: 

 scape 3 to 6 inches high : spathe-valves 2 or 3, abruptly setaceous- 



