GENUS 31. 



THISTLE FAMILY 



13. Aster multiformis Burgess. Various- 

 leaved Aster. Fig. 4294. 



Aster multiformis Burgess ; Britt. & Brown, 111. Fl. 

 3: 361. 1898. 



Deep green, minutely glandular ; stem erect, 

 slender, i-2 high, angular-striate in drying. 

 Basal leaves usually 2, large, thick, cordate- 

 oblong, often accompanied by later smaller ob- 

 long ones ; stem leaves very thin, sharply ser- 

 rate, rough above, minutely puberulent beneath, 

 the lower ovate, acuminate, usually with a nar- 

 row sinus, the upper oval to ovate-lanceolate, 

 petioled, the uppermost elliptic-lanceolate, ser- 

 rulate, sessile or nearly so; inflorescence small, 

 its branches upwardly curved ; heads about 7" 

 high; rays about 13, rounded and retuse at the 

 apex ; bracts green, glands few, almost hidden 

 by the minutely strigose pubescence of the pe- 

 duncles. 



In moist shaded places, Maine to western New 

 York, Pennsylvania and Maryland. July-Aug. 



14. Aster nobilis Burgess. Stately Aster 

 Fig. 4295- 



Aster nobilis Burgess ; Britt. & Brown, 111. Fl. 3 : 361. 

 1898. 



Tall, minutely glandular above ; stem shining, 

 bright green, 4~5 high. Leaves thin, but firm, 

 smooth in growth, roughened in drying, mi- 

 nutely puberulent beneath, dark green, basal and 

 lower leaves large, the blade often 9' long by 6' 

 wide, about as long as the stout petiole, sharply 

 toothed, the sinus deep, broad, or the lobes over- 

 lapping ; stem leaves similar, the upper oblong- 

 lanceolate, sessile ; inflorescence irregularly cy- 

 mose-paniculate, with small subulate recurved 

 leaves ; bracts long, acute, green ; heads 6" high, 

 or less; rays 13-15, violet-blue or pale violet; 

 disk-flowers not numerous, their corollas funnel- 

 form with a long capillary tube. 



In leaf-mold, Lake Champlain to Lake Erie. Aug. 



15. Aster anomalus Engelm. Many- 

 rayed Aster. Fig. 4296. 



Aster anomalus Engelm. ; T. & G. Fl. N. A. 2 : 503. 

 1843- 



Stem rough, rather stout, branched above, 

 i-3 high. Leaves thin, the lower and basal 

 ones deeply cordate, ovate, or ovate-lanceolate, 

 entire or slightly repand, rough-pubescent on 

 both surfaces, acute or acuminate at the apex, 

 3'~4' long, i '-2' wide, on slender naked peti- 

 oles; upper leaves short-petioled or sessile, 

 lanceolate, oblong, or linear, much smaller; 

 heads few, 4"-6" high, I2"-I5" broad; recep- 

 tacle hemispheric, its bracts lanceolate, acute, 

 or acuminate, hirsute, imbricated in several 

 series, their foliaceous tips spreading or re- 

 flexed ; rays 30-45, 5"-6" long, bright violet- 

 blue; pappus whitish. 



On limestone cliffs, Illinois to Missouri and 

 Arkansas. Sept. 



