MEMOIRS OF THE NEW YORK BOTANICAL GARDEN, 393 



hemispheric ; bracts in about four rows, imbricated, linear-lanceo- 

 late, rather firm, with a narrowly rhomboid foliaceous tip, the inner 

 ones two-thirds or three-fourths the length of tlie disk-flowers ; rays 

 narrow^ numerous, blue. 



Apparently nearest related to A. laevis Geyeri, but differs in the 

 short bracts and the form of the leaves, which in the present species 

 are more strongly crenate. In low grounds and open woods. 



Washington: Spokane Co., 1889, Suksdorf, g28 (type). 



Montana: Missouri River, 1892, F. D. Kehey ; northern Mon- 

 tana, 7^. W. Anderson; Sun River Crossing, 1883, Scribncr, pj ; 

 Teton River, g2. 



* Aster Scribneri. 



Stem 3-6 dm. high, simple, striate, glabrous; basal leaves and 

 lower stem-leaves petioled, the petiole 3-10 cm. long, wing-mar- 

 gined, clasping and somewhat auricled at the base; blade 8-14 cm. 

 long, 3.5—6 cm. wide, thin, ovate, acute, sharply serrate-dentate, 

 glaucous, glabrous, except the ciliate margins ; stem-leaves ovate, 

 or ovate-lanceolate, sessile and clasping ; panicle small, with 5-10 

 heads about i cm. high ; bracts unequal, imbricated, glabrous, 

 lanceolate with a green midrib and narrowly rhomboid green tips, 

 the outer about half as long as the inner ; rays 14—18, rather wide, 

 about 8 mm. long; pappus sordid, scabrous. 



This belongs to the laevis group, but is easily distinguished by its 

 large ciliate leaves. Grows on rocky slopes, at an altitude of 1300- 

 2000 m. 



Montana: Bird Tail Creek, 1883, Scrlbner, gi (type); Gap 

 of Belt Mountain, 1882, Canby (both in the Canby Herbarium). 



Aster multiflorus Ait. Hort. Kew\ 3: 203 [111. Fl. 3: 381 ; Syn. Fl. 



1=^: 185; Man. R. M. 161]. 



On prairies and in river-valleys, up to an altitude of 2500 m. 



Montana: Silver Bow Co., Mrs. Christie; Belt River, 1887, R. 

 S. Williams, yio; Sun River, 1883, Scribner, g6 ; Smith River, gj. 



Yellowstone Park: 1883, Mary Com^ton. 



Aster incanopilosus (Lindl.) Sheldon, Bull. Torr. Bot. Club, 20 : 286 



[111. Fl. 3: 381] ; Aster ramidosiis incano-filosus Lindl. in DC. 



Prod. 5: 243; A. commiitatus Gray, Syn. Fl. i' : 185 [Man. R. 



M. 161]. 



On plains and river-banks, up to an altitude of 2500 m. 



Montana: Park Co., 1887, Tweedy, j^g; Columbia Falls, Mrs. 

 J.J. Kennedy, j8 2indi ^g; Gallatin Co., Mrs. Hodgman ; Lewis 



