64 LILIACEAE. 



Streptopus amplexifolius (L.) DC. Stems branched, about 1 m. tall, 

 from horizontal creeping rootstocks, glabrous except at the base; leaves ovate, 

 acuminate, cordate and clasping at base, 5-12 cm. long, usually glaucous, 

 especially beneath; flower solitary in the upper axils; pedicels bent at the base 

 and geniculate in the middle, so that the flower is concealed by the leaf; 

 perianth narrowly campanulate, the segments greenish, lanceolate, acuminate, 

 strongly curved outward; anthers acuminate; berry oblong-globose, red, about 

 1 cm. in diameter. Moist woods, in the mountains. 



85. XEROPHYLLUM. 



Perennials with a short thick woody rootstock and numerous 

 radical stiff linear leaves; perianth white, of six separate spread- 

 ing petal-like segments; stamens 6, at the base of the perianth- 

 segments; styles distinct, linear, reflexed; ovary sessile, ovate, 

 3-lobed. 



Xerophyllum tenax (Pursh) Nutt. Pine Lily or Bear Grass. Basal leaves 

 very numerous, harsh and stiff, linear, keeled, 5 mm. broad, 6C-90 cm. long; 

 cauline similar but smaller and dilated at base; stems stout, 1-2 m. tall, stiff 

 and erect; flowers white; raceme dense, at first pyramidal, then elongating, 

 15-40 cm. long in bloom, longer in fruit; pedicels spreading in flower, erect in 

 fruit, 2-3 cm. long. In pine woods in the mountains. 



86. DISPORUM. 



More or less pubescent herbs with slender rootstocks; stems 

 branching, scaly below, leafy above; leaves alternate, somewhat 

 unsymmetrical, sessile or clasping; flowers terminal, drooping, 

 whitish or greenish-yellow, solitary or few in simple umbels; 

 perianth-segments 6, narrow, equal, separate; stamens 6, hy- 

 pogynous; ovary 3-celled; ovules 2 or sometimes several in each 

 cavity. 



Fruit globose, papillose; stigma 3-cleft. D. majus. 



Fruit ovate, pubescent or glabrous; stigma entire. D. oreganum. 



Disporum majus (Hook.) Britt. Stems branched, 30-50 cm. tall, the 

 branches pubescent; leaves oblong or oblong-ovate, long-acuminate, sessile 

 and half-clasping, 5-7 cm. long, glabrous; flowers solitary or in pairs, yellowish- 

 white, on more or less curved pedicels, 5-8 mm. long; perianth campanulate, 

 the segments narrow, oblong or oblanceolate, 10-12 mm. long; berry pyriform- 

 globose, 6-8 mm. in diameter, roughened with minute shallow pits. In woods, 

 in the mountains. 



Disporum oreganum (Wats.) Benth. & Hook. Similar to D. majus; 

 leaves broader, ovate, distinctly cordate; perianth 12 mm. long, the stamens 

 exserted; stigma 3-parted; fruit globose, pubescent but becoming smooth. In 

 mossy woods. 



87. VERATRUM. FALSE HELLEBORE. 



Tall perennial herbs, from short thick poisonous rootstocks; 

 stem pubescent; leaves mostly broad, clasping, strongly veined 

 and plaited; inflorescence pubescent, of terminal panicles; 



