LLOYDIA LILIACE^E 651 



EKYTHRONIUM 



and whitish flowers in terminal racemes or solitary. Perianth of 

 6 distinct equal persistent segments with a transverse margined 

 nectariferous fold above the base. Stamens 6, inserted at the base 

 of the segments : filaments subulate-filiform : anthers versatile, 

 oblong, rounded at the apex, deeply perforated at the emarginate 

 base for the insertion of the filament, dehiscent along each margin. 

 Ovary triangular, 3-celled, the ovules numerous, in two rows in 

 each cell, horizontal, anatropous. Style persistent, with shortly 

 3-lobed stigma. Capsule chartaceous, loculicidally 3-valved at 

 the apex. Seeds flat, with a brown membranously margined 

 testa and very small embryo. 



L. serotina Reichenb. Fl. Excurs. 102. Stem slender, erect or ascend- 

 ing, 2-5 inches high : radical leaves filiform, equalling or exceeding the 

 stem, triangular to teretish, the cauline ones short and diminishing up- 

 ward, linear-lanceolate, somewhat sheathing : flowers erect, usually solita- 

 ry : segments of the perianth oblanceolate, obtuse, obscurely pitted at 

 base, 4-5 lines long, white with 3 purplish lines : capsule obovate, obtusely 

 angled, 4 lines long. Eastern Oregon to the Rocky Mountains and the 

 Arctic coast. 



11 ERYTHRONIUM L, Sp. 305. 



Low herbs from membranous-coated corms with 2-3 apparent- 

 ly radical flat leaves and one to several large flowers in a terminal 

 raceme. Perianth broadly funnelform, of Q distinct nearly equal 

 lanceolate deciduous segments that are mostly revolute from 

 near the base, the inner usually auriculate below and callous- 

 toothed on each side of a nectariferous groove. Stamens g, hy- 

 pogynous, with rather short slender filaments and linear anthers 

 attached by the base and longitudinally dehiscent. Ovary nearly 

 sessile, many-ovuled. Style slender, entire with short 3-lobe stig- 

 ma, or 3-cleft and the stigmas at length revolute, deciduous. 

 Caqsule membranaceous, obtusely triangular, loculicidally 3-val- 

 ved. Seeds in two rows in each cell, ascending, with brown or 

 black rugulose testa somewhat loose at the apex. 



E. grandiflorum Pursh Fl. 231. Scape stout, 1-2 feet high: leaves 

 broadly lanceolate, 4-6 inches long, acute and shortly cubpidate, pale 

 green, not mottled: segments of the perianth bright yellow with whitish 

 base; outer ones lanceolate, obtuse; inner ones narrower, acuminate, with 

 4 stout hyaline teeth at base, all strongly revolute, l>-3 inches long: style 

 clavate ; the stigmas at length distinct and recurved. In the mountains of 

 eastern Oregon to Brit. Columbia and the Rocky Mountains. 



Var. paryiflorum Watson Proc. Am. Acad. xxvi, 129. Scape usu- 

 ally 8-12 inches high: leaves oblong-lanceolate;, flowers smaller, the seg- 

 ments 12-15 lines long. In the mountains California to Brit. Columbia 

 and the Rocky Mountains. 



E. revolutum Smith in Rees' Cyc. Scape 10-12 inches high, 1-3- 

 flowered: leaves narrowed below to a usually narrow petiole, 2-6 inches 

 long, conspicuously marked with dark brown and white: segments of the 

 perianth narrowly lanceolate, acuminate, 18 lines long, 3-4 lines wide, 

 strongly revolute, white to pinkish-rose outside, golden-orange deepning to 

 a dark purple inside, the 3 inner auricled and with 4 blunt teeth : anthers 

 about 4 lines long, bright yellow: stigmas at length distinct and recurved. 



