392 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



acuminate purplish bracts. It grows in meadows and river-valleys, 

 at an altitude of 1000-2000 m. 



Montana: SWvitv \io\\ Co.. 3frs. Jennie Moot'e ; West Gallatin, 

 1892, W. T. Shazv ; Columbia Falls, Mrs. J. J. Kennedy^ j, 10 

 and 20; Bozeman Canon, 1897, H. S. Jennings: Garrison, 1895, 

 Rydberg, 28ig; Madison Co., 1886, Tivcedy, 1144; Belt Mts., 

 1884, R. S. Williams, 224; Garrison, 1895, Rydherg, 28 ig. 



*Aster Lindleyanus Torr. & Gray, Fl. N. Am. 2: 122 [111. Fl. 3: 



364 ; Syn. Fl. i" : 182]. 



A tall species with the lower leaves cordate and the upper ovate 

 or ovate-lanceolate, coarsely serrate, and acuminate at both ends ; 

 petioles wing-margined, and the bracts very narrow. In meadows. 



Montana: Sand Coulee, 1891, R. S. Williams, 2J2; Flathead 

 Lake, 1883, Canby, lyi (?); Judith Mts., 1881. 



* Aster ciliomarginatus. 



Perennial ; stem ';i^-6 dm. high, terete, slightly striate and tinged 

 with red, glabrous below, more or less strigose above ; basal leaves 

 glabrous except the ciliolate margins, thin, distantly serrate or sub- 

 entire, 1-2 dm. long, oblanceolate, acute, tapering into wing-mar- 

 gined petioles ; lower stem-leaves similar, but with shorter petioles, 

 somewhat clasping, the upper oblong or lanceolate, sessile ; panicle 

 open; heads about i cm. high and 12-15 mm. in diameter; bracts 

 linear, ciliate on the margins, upper part foliaceous and the outer 

 somewhat spreading ; rays numerous, about 12 mm. long, light blue ; 

 pappus tinged with reddish. 



A species of the laevis group, characterized by the thin ciliolate 

 leaves and the strigose upper part of the stem. It grows in open 

 woods, at an altitude of 2000 m. 



Montana: Electric Peak, Aug. 20, 1897, Rydberg & Bessey, 

 ^128 (type) ; Columbia Falls, Mrs. Kennedy, 11 and /j ; Bear 

 Creek Canon, 1892, W. F. Shaw: Little Belt Mts., 1896, Flod- 

 jnan, 8ji. 



* Aster brevibracteatus. 



Perennial ; stem 5-6 dm. high, terete, glabrous, shining, tinged 

 with purple ; basal leaves spatulate or ovate-lanceolate, tapering into 

 a winged petiole about i dm. long, coarsel}' crenate, firm and some- 

 what pale, glabrous ; lower stem-leaves similar, the middle ones 

 oblong or oblanceolate, sessile, wath an auricled base, the upper 

 lanceolate, half-clasping ; lower bracts of the inflorescence 1-3 cm. 

 long, the upper very small, ovate-lanceolate; heads 8-10 mm. high, 



