426 



LILIACEAE 



15. Fritillaria pudica (Pursh) Spreng. Yellow Fritillary. Yellow Bell. 



Fig. 1044. 



Lilium pudicum Pursh, Fl. Am. Sept. 1: 228. pi. S. 1814. 

 Fritillaria piidica Spreng. Syst. 2: 64. 1825. 

 Ochrocodon pndicus Rydb. Fl. Rocky Mts. 164. 1917. 



Bulb of 2 or 3 large fleshy scales and numerous 

 smaller ones. Stems 8-20 cm. high, slender; 

 leaves 3-8. scattered or somewhat verticillate, 

 linear to narrowly oblanceolate. 5-10 cm. long; 

 flowers 1 or 2, nodding, yellow or orange tinged 

 with purple, campanulate, 10-25 mm. long; nec- 

 taries obscure; stamens nearly equalling the seg- 

 ments ; styles connate ; stigma shallowly 3-lobed ; 

 capsule oblong-subglobose, 15-20 mm. long, ob- 

 tusely lobed. 



Grassy slopes. Arid Transition Zone; British Columbia 

 and Montana, south to New Mexico, eastern Oregon and 

 Siskiyou and Plumas Counties, California, and Carson 

 Valley, Nevada. Type locality: Clearwater River, Idaho. 

 Several segregates have been proposed (Gandg. Bull. See. 

 Bot. France 66: 291. 1920), but they are based upon 

 superficial differences. 



19. ERYTHRONIUM L. Sp. PI. 305. 7153. 



Low herbaceous plants, from deep-seated membranous-coated corms, arising in succession 

 on a short rhizome, or in some species propagating by offshoots, the stem simple, bearing two 

 broad or narrow unequal leaves, usually below the middle, the leaves thus appearing basal. 

 Flowers large, nodding, bractless, solitary or in few-several-flowered racemes or umbfls. 

 Many plants are flowerless and 1-leaved. Perianth-segments separate, lanceolate to oblanceo- 

 late, deciduous, with a nectariferous groove, and sometimes with two short processes at the 

 base. Stamens 6, hypogynous, shorter than the perianth ; anthers linear-oblong, not versatile. 

 Ovary sessile, 3-celled ; ovules numerous or several in each cavity ; style filiform or thickened 

 above ; 3-lobed or entire. Capsule obovoid or oblong, somewhat 3-angled, loculicidal. Seeds 

 compressed, or somewhat angled and swollen. [Greek, in allusion to the red flowers of some 

 species.] 



A genus of about" 15 species, all but one North American. Type species, Erythroniinn dens-canis L. 



Corms propagating from slender offshoots produced from the base; flowers on elongated scape-like pedicels, 

 arising from a sessile umbel. 1- £• mitltiscapoideiim. 



Corms arising in succession from short rhizomes; propagation only by seed; flowers not in a sessile umbel. 

 Stigma 3-lobed, the lobes finally recurved. 



Flowers bright yellow; the leaves not mottled. 

 Perianth-segments acuminate. 



Anthers purple. 2. E. grandiflorum. 



Anthers cream white. 3. E. paiviflonim. 



Perianth-segments not acuminate; anthers yellow . 

 Flowers not bright yellow, usually cream, with yellow center, often fading pink. 



Leaves not mottled; filaments filiform. 4. E. inontaiiuiii. 



Leaves mottled. 



Filaments not dilated below, stoutish. . 5. E. calif ornictan. 



Filaments dilated below. 



Capsule obtuse or retuse at apex; perianth-segments cream-color with yellow base and often 

 with a greenish brown spot above. 6. E. giganteuni. 



Capsule acutish at apex; perianth-segments cream-color usually tinged with purple. 



7. E. revohiUim. 

 Stigmas entire or obscurely notched; style clavate. 

 Inner perianth-segments appendaged. 



Perianth-segments 25 mm. or more in length. 



Perianth light yellow with orange base. 8. E. citrinum. 



Perianth pale purple with a dark purple base. 9. E. hendersonii. 



Perianth-segments less than 25 mm. long. 10. E. purpiirascens. 



Inner perianth-segments not appendaged. 11- E. hotvelln. 



