6o LILIACEAE. 



Allium macrum Wats. Similar to A. collinum in all respects, but outer 

 bulb coat without reticulate markings. High ridges of the Blue Mountains. 



Allium acuminatum Hook. Stems 10-20 cm. tall; bulbs globose, the 

 outer coats finely reticulate; leaves terete, narrow, shorter than the stem; 

 flowers many, pink, on pedicels 2-3 cm. long; perianth segments ovate, acu- 

 minate, 10-12 mm. long; ovary only obscurely crested. Rocky soil, abundant. 



Allium acuminatum cuspidatum Fernald. Perianth segments smaller, 

 7-8 mm. long, abruptly cuspidate. Near Wawawai. 



Allium cusickii Wats. Scapes flattened, 2-edged, 10-15 cm. high; bulb 

 ovoid, 1-2 cm. long, the outer coats black, not reticulated; leaves two, falcate, 

 4-8 mm. broad, exceeding the scape; umbel rather densely many-flowered, 

 convex; pedicels slender, 15-20 mm. long; perianth pink, the segments atten- 

 uate-acuminate, 8-10 mm. long, much exceeding the stamens and style. 

 Blufifs of the Snake and Clearwater Rivers, in thin rocky soil. 



Allium douglasii Hook. Stems stout, 15-25 cm. tall; bulb ovate, 2 cm. 

 long, the coats not reticulated; leaves two, 10-20 cm. long, about 1 cm. wide, 

 flat; flowers very numerous, in a dense globose umbel, dark red; bracts 2, 

 large; perianth segments broadly lanceolate, acuminate, 7-10 mm. long; 

 pedicels 15-20 mm. long; ovary not crested. In gravelly springy places, rare. 



Allium nevii Wats. Stems stout, 10-20 cm. high; bulb ovate, about 2 cm. 

 long, the coats usually purplish and the reticulations very obscure, trans- 

 versely polygonal; leaves 2, flat, 3—4 mm. broad, 10-20 cm. long; flowers pink, 

 rather numerous; bracts 2, large; perianth segments ovate, cuspidate, 6-7 mm. 

 long; pedicels 5-7 mm. long; ovary not crested. Spokane, Henderson; more 

 common in central Washington. 



77. CALOCHORTUS. Mariposa Lily. 



Branched or simple herbs with coated corms; leaves narrowly 

 linear; flowers large, showy, peduncled; perianth-segments sepa- 

 rate, spreading, whitish, purplish or variegated; the three outer 

 sepal-like, narrow; the three inner petal-like, gland-bearing, and 

 bearded or spotted within; stamens 6, hypogynous; ovary 3- 

 celled; ovules numerous. 



Flowers white or yellowish, nodding. 



Petals pale yellow, sparsely hairy. C. apiculatus. 



Petals white, very hairy inside. C. elegans. 

 Flowers erect, usually pink. 



Petals obtuse, with a peacock-eye spot at the base. C. nitidus. 



Petals acute or acuminate, yellow at base. C. macrocarpus. 



Calochortus apiculatus Baker. Stem erect, 30-60 cm. high, bearing 1-3 

 flowers; leaf solitary, 15-30 cm. long, 6-18 mm. broad; bracts linear, acuminate; 

 sepals acute, lanceolate, 1-2 cm. long; petals yellowish, broadly obovate, 

 sparingly hairy, except about the deep pit at the base which lacks a scale; 

 anthers acuminate, as long as the filaments; capsule oblong, 2.5-3 cm. long. 

 In moist grassy places, common near Priest Lake, Idaho. Near Spokane, 

 Miss Reed. 



Calochortus elegans Pursh. Low, the stems 5-15 cm. tall, bearing a single 

 lanceolate leaf, which much exceeds the stem; flowers solitary, or 2-5 in a 

 cyme, the pedicels ascending, 2-6 cm. long, each subtended by a lanceolate- 

 acuminate bract; sepals broadly lanceolate, acuminate, greenish or purplish, 



