528 LILIACE^E. (LILY FAMILY.) 



2. U. grandifl6ra, Smith. Yellowish-green, not glaucous ; stem naked 

 or with a single leaf below the fork; leaves whitish-pubescent beneath, usually 

 somewhat acuminate; perianth-segments smooth within or nearly so (12-18" 

 long); stamens exceeding the styles, obtusely tipped; capsule obtusely lobed. 

 (U. flava, Smith.) Rich woods, Canada to Ga., west to Minn, and Mo. 



19. OAKESIA, Watson. 



Flowers resembling those of Uvularia, but the segments obtuse or acutish, 

 cariuatelv gibbous and without ridges within. Capsule membranous, ellipti- 

 cal, acutish at each end or shortly stipitate, triquetrous and acutely winged, 

 very tardily dehiscent. Seeds globose, with a very tumid spongy rhaphe. 

 Stem acutely angled, from a slender creeping rootstock, with sessile clasping 

 leaves scabrous on the margin, and 1 or 2 flowers terminal on slender pedun- 

 cles but soon appearing opposite to the leaves by the growth of the branches. 

 (Dedicated to William Oakes.) 



1. O. sessilifolia, Watson. Leaves lanc(?-oblong, acute at each end, 

 pale, glaucous beneath, sessile or partly clasping; sepals 7-12" long; anthers 

 obtuse ; capsule short-stipitate, 6-10" long. (Uvularia sessilifolia, L.) Low 

 woods, N. Brunswick to Fla., west to Minn., Neb. and Ark. 



2. O. puberula, Watson. Slightly puberulent ; leaves bright green both 

 sides and shining, oval, mostly rounded at base, with rougher edges ; styles 

 separate to near the base, not exceeding the acute anthers ; capsule not stipi- 

 tate, 10- 12" long. (Uvularia puberula, Michx.) Mountains, Va. to S. C. 



20. ERYTHRONIUM, L. DOG'S-TOOTH VIOLET. 



Perianth lily-like, of 6 distinct lanceolate sepals, recurved or spreading 

 above, deciduous, the 3 inner usually with a callous tooth on each side of the 

 erect base, and a groove in the middle. Filaments 6, awl-shaped ; anthers 

 oblong-linear, continuing erect. Style elongated. Capsule obovate, con- 

 tracted at base, 3-valved, loculicidal. Seeds rather numerous, ovoid, with a 

 loose membranaceous tip. Nearly stemless herbs, with two smooth and 

 shining flat leaves tapering into petioles and sheathing the base of the com- 

 monly one-flowered scape, rising from a deep solid-scaly bulb. Flowers rather 

 large, nodding, in spring. (The Greek name for the purple-flowered Euro- 

 pean species, from epvdpos, reel.) 



1. E. Americanum, Ker. (YELLOW ADDER'S-TONGUE.) Scape 6 -C' 

 high ; leaves elliptical-lanceolate, pale green, mottled with purplish and whit- 

 ish and commonly minutely dotted ; perianth light yellow, often spotted near 

 the base (10-20" long) ; style club-shaped; stigmas united. Rich ground, 

 N. Brunswick U> Fla., west to Minn, and Ark. 



2. E. albidum, Nutt. (WHITE DOG'S-TOOTH VIOLET.) Leaves ellip- 

 tical-lanceolate, less or not at all spotted ; perianth pinkish-white ; inner 

 divisions toothless ; style more slender except at the apex, bearing 3 short 

 spreading stigmas. Rich ground, N. Y. to N. J., west to Minn, and Kan. 



3. E. propullans, Gray. Offshoot arising from the stem, near the middle ; 

 leaves smaller and more acuminate; Jlowers bright rose-color, yellowish at base 

 (6" long) ; style slender ; stigmas united. In rich soil, Minn, and Out. 



