372 



COMPOSITAE. 



[Vol.. III. 



43. Aster concolor L. 



Eastern Silvery Aster. (Fig. 3777.) 



Aster concolor L- Sp. PI. Ed. 2, 1228. 1763. 

 Stem slender, glabrous, or pubescent above, 

 \~2y 2 high, leafy, simple, or witb few erect 

 branches. Leaves oblong or linear-oblong, 

 finely and densely canescent on both sides, 

 or the lower glabrate, sessile, obtuse or mu- 

 cronate, i>^ / -2 / long; heads numerous in an 

 elongated narrow raceme resembling Lacin- 

 aria; involucre broadly turbinate, its bracts 

 linear or linear- oblong, appressed, canescent, 

 imbricated in 4 or 5 series, their tips green, 

 acute, the outer shorter; rays 10-15, l ilac . 

 3 // -4 // long; pappus tawny; achenes villous. 



In dry sandy soil, eastern Massachusetts and 

 Rhode Island to Florida and Louisiana, near the 

 coast. Lilac flowered Aster. Aug.-Oet. 



44. Aster Fendleri A. Gray. 

 Fendler's Aster. (Fig. 3778.) 



Asler Fendleri A. Gray, Mem. Am. Acad. (II) 4: 66. 



1S49. 

 Asler Nuttallii var. Fendleri A. Gray, Pac. R. R. 



Rep. 4: 97. 1856. 



Stems several or solitary from thick woody 

 roots, rigid, hirsute, 6 / -i2 / high. Leaves linear, 

 rigid, i-nerved, acute or acuminate, 8 // -l5 // 

 long, i // -i / ^ // wide, glabrous on both sides, 

 but the margins bristly-ciliate; heads usually 

 few and racemose, % r -\' broad; involucre tur- 

 binate, its bracts glandular, linear-oblong, im- 

 bricated in about 4 series, the inner acute, the 

 outer shorter and obtuse; rays 10-15, violet, 

 3"-5" long. 



In dry soil on the plains, western Kansas to Colo- 

 rado and New Mexico. Aug. -Sept. 



45. Aster grandiflorus L. Large-flowered Aster. (Fig. 3779.) 



Aster grandiflorus L. Sp. PI. 877. 1753. 



Stem rather stiff, divaricately much branch- 

 ed, hispid with short hairs, i-2>^ high. 

 Leaves oblong, linear.or somewhat spatulate, 

 rigid, sessile by a broad, sometimes slightly 

 clasping base, reflexed, entire, obtusish, his- 

 pid, the larger 2' long and 4" wide, those of 

 the branches very numerous, 2 // -5 // long; 

 heads about 2' broad, terminating the 

 branches; involucre hemispheric, its bracts 

 very squarrose and foliaceous, imbricated in 

 5-7 series, linear, or linear-oblong, glandular, 

 the outer obtusish, the inner acute; rays very 

 numerous, deep violet, nearly 1' long, lj" 

 wide; pappus brownish; achenes ribbed, 

 canescent. 



In dry soil, Virginia, east of the mountains, 

 to Florida. Sept. 



