OF ARTS AND SCIENCES. 227 



6. A. rLEMATOCHiTON". Bulb-coats deep red : scape a foot high or 

 less: leaves about a line wide : umbel erect or nearly so, few -many- 

 flowered ; pedicels short : flowers 3 or 4 lines long, deep rose-color, 

 especially on the midveins of the ovate-lanceolate acute segments : sta- 

 mens and style included ; filaments very slender : ovary truncate, with 

 very short rounded crests ; capsule obovate. — California (San Luis 

 Obispo to Ojai ; n. 462, Brewer). 



§ 2. Bulbs globose to ovate, mostly solitary, not rhizomatous ; coats fibrous 

 or membranous : leaves narrowly linear, flat or channelled : scape terete or 

 nearly so. 



* Bulb-coats more or less fibrous : leaves several. 

 h- Capsule not crested : spathe usually 3-valved. 



7. A. Canadense, Kalin. Bulb-coats somewhat fibrous : scape a 

 foot high or more : umbel mostly bulbiferous (often with 2 or 3 flow- 

 ers) : flowers on slender pedicels (6 to 10 lines long), white or pinkish, 

 3 lines long ; segments narrowly lanceolate, obtusish, equalling or 

 somewhat exceeding the stamens : filaments slightly broader below. — 

 A. longicaule, Hornem. ? From Canada to Florida and Texas. 



8. A. mdtabile, Michx. Like the last : bulbs densely and coarsely 

 fibrous-coated : scape a foot or two high : umbel few -many-flowered, 

 rarely or never bulbiferous : flowers white to rose-color, 2 to 4 lines 

 long ; segments thin and lax in fruit, ovate- to narrowly lanceolate, 

 obtusish or acute, a third longer than the stamens. — A. Mobilense and 

 Drummondii, Regel, Monogr. All. 112 and 121. A. reticulatum, var.y, 

 "Watson, King's Rep. 5. 486. From North Carolina and Florida to 

 Arkansas and New Mexico. 



9. A. Nuttallii. Bulb usually smaller, very fibrous : scape low 

 (4 to 6 inches high) : pedicels shorter (4 to 6 lines) and usually rather 

 stouter : perianth-segments usually broader (3 lines long), acute or acu- 

 minate, rose-colored or white, rather rigid in fruit. — A. mutabile, /?, 

 Watson. From Kansas and Colorado to Texas, New Mexico and 

 Eastern Arizona (n. 3219, Berland. ; n. 528, Lindh. ; n. 847, Fendl.; 

 n. 195, Hall & Harbour ; n. 647, Hall ; n. 197, 237, Rothrock). 



•»- +- Capsule crested : spathe usually 2-valved. 



10. A. reticulatum, Fraser. Scape 3 to 8 inches high: pedicels 

 usually short (2 to 6 lines long) : otherwise closely resembling 

 A. mutabile. — Hook. Fl. Bor.-Am. 2. 184, t. 195. A. stellatutn, 

 var., Sims, Bot. Mag. t. 1840. A. angulosum, Pursh. From the 

 Saskatchewan to New Mexico and N. Arizona. 



11. A. Geyeri. Taller and stouter (a foot high) : pedicels 6 to 

 12 lines long : flowers rose-colored, 4 lines long, the segments broad, 



