’ 
246 BOTANICAL GAZETTE [APRIL 
Adult plant.—Plant luxuriant, mostly 1 m. tall or less; stem 
slightly uneven, but scarcely channeled, hirsute with spreading-~ 
ascending somewhat rigid hairs, copiously branched throughout, 
the lower branches decumbent, the upper ones spreading or curved 
upward; leaves very numerous, 1.5—-2 dm. long near the base of 
the stem; blades elliptic-oblanceolate to elliptic-lanceolate; shal- 
lowly but rather prominently toothed, and often jagged toothed 
; Fic. 2.—Rosette of induced derivative of O. biennis five months old; compare 
with pl. 3, Publ. no. 24, Carnegie Institution of Washington. 1906. 
sung the base, acuminate, those of the upper cauline leaves mostly 
elliptic, acute, sessile, or nearly so; bracts mainly lanceolate, 
narrowed or rounded at the base ; conic portion of the bud 14-18 
mm. long, finely pubescent, the free tips of the sepals about 2 ™™ 
long; hypanthium 2-3 cm, long, 5-6 mm. wide at the mouth, 
nearly terete, sparingly pubescent or glabrate; sepals 15~2° = 
