. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 1. Dasystephana affinis (Griseb.) Rydb. Ob- long-leaved Gentian. Fig. 3353. Gentiana affinis Griseb. in Hook. Fl. Bor. Am. 2: 56. 1834. D. affinis Rydb. Bull. Torr. Club 33: 149. 1906. Perennial; stems clustered from deep roots, minutely puberulent, simple, 6-18' high. Leaves linear-oblong to lanceolate-oblong, obtuse or acutish, rounded or narrowed at the base
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 1. Dasystephana affinis (Griseb.) Rydb. Ob- long-leaved Gentian. Fig. 3353. Gentiana affinis Griseb. in Hook. Fl. Bor. Am. 2: 56. 1834. D. affinis Rydb. Bull. Torr. Club 33: 149. 1906. Perennial; stems clustered from deep roots, minutely puberulent, simple, 6-18' high. Leaves linear-oblong to lanceolate-oblong, obtuse or acutish, rounded or narrowed at the base, firm, roughish-margined, indis- tinctly nerved, l'-i¥ long, the floral smaller; flowers few, numerous, or rarely solitary, 5-parted, sessile and solitary or clustered in the axils of the upper leaves, about 1' high,' not bracted under the calyx; calyx-lobes linear or subulate, unequal, the longer about equalling the tube, the smaller sometimes minute; corolla nar- rowly funnelform, blue, its lobes ovate, acute or mu- cronate, entire, spreading, with laciniate appendages in the sinuses; anthers separate; seeds broadly winged. In moist sbil, Minnesota to British Columbia, south in the Rocky Mountains to New Mexico. 2. Dasystephana puberula (Michx.) Small. Downy Gentian. Fig. 3354. Gentiana puberula Michx. Fl. Bor. Am. I: 176. 1803. D. puberula Small, Fl. SE. U. S. 930. 1903. Perennial; stems usually solitary, leafy, 8'-i8' high, minutely puberulent or glabrous, nearly terete. Leaves firm, _ lanceolate, or the lower oblong, roughish- margined, indistinctly nerved, pale beneath, nar- rowed or rounded at the base, 1-3' long; flowers sessile or nearly so in the upper axils, rarely soli- tary and terminal, 2-bracteolate under the calyx, li'-2' high; calyx-lobes linear-lanceolate, equal, about as long as the tube, rough; corolla campanulate- funnelform, 2-3 times as long as the calyx, its lobes ovate, entire, spreading, much longer than the cleft or laciniate appendages; a
Size: 1437px × 1740px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
