360 



COMPOSITAE. 



[Vol. III. 



Aster macrophyllus velutinus Burgess. 



Smaller; leaves small, ovate-triangular, slender petioled, often truncate at the base, about 2)2 

 long by 2' wide, sometimes none of them cordate; glands fewer; pubescence subpilose or velvety; 

 bracts broad, flat, green ; rays violet or blue. In grassy woods and thickets, especially in mountain- 

 ous regions, Maine to Minnesota and West Virginia. Ascends to 2400 ft. in the Adirondacks. 



Aster macrophyllus sejunctus Burgess. 



Strigose-pubescent; glands numerous; leaves apple-green above, pale beneath, chiefly cordate- 

 orbicular, abruptly short-acuminate, thick, spongy, commonly minutely wrinkled; basal leaves few; 

 bracts narrow, obtuse; peduncles slender; inflorescence dense, convex, 4' -8' broad, not leafy; rays 

 lilac. In open grassy places, Maine to Pennsylvania and Wisconsin. 



Aster macrophyllus apricensis Burgess. 



Glabrate, branched from near the base, the branches numerous, often 18' high; heads small, 

 numerous; rays short, pinkish lavender; leaves broad, oval to ovate, the teeth and sinus little de- 

 veloped; petioles often expanded into a long wing, sometimes 3' long and Vz wide; uppermost 

 leaves short-oblong with a narrowed sessile base. In clearings and open gravelly or sandy places, 

 New York and Pennsylvania. 



Aster macrophyllus biformis Burgess. 



Small, stocky, with 3 or 4 small oval closely crenate spongy-thickened lower leaves with long 

 slender petioles, the sinus deep, narrow, the teeth triangular to semicircular; stem-leaves crowded, 

 much reduced, subentire, ovate-oblong, subsessile; inflorescence nearly naked, dense, convex, 

 usually 4' broad; strigose pubescence little developed; rays lilac. In open grassy sunny situations. 

 forming small patches, Maine to Ontario and Lake Erie. 



Aster macrophyllus pinguifolius Burgess. 



Stems stout, leafy, glabrous, about 2 high; basal and lower leaves large, forming extensive 

 patches, deep green above, very pale beneath, many of them appearing greasy, some roughening 

 in drying; petioles fleshy, sometimes 9' long; inflorescence broad, flat-topped; heads large; rays 

 lavender to almost white; only the upper leaves sessile. Borders of woods, Connecticut and Long 

 Island to Minnesota. 



Aster macrophyllus excelsior Burgess. 



Stem robust, glabrous, often 4 tall, purple, or glaucous; leaves mostly very smooth, pale, nu- 

 merous, narrower, cordate-oblong to ovate-lanceolate, chiefly sessile; rays deep lilac to violet. 

 Along paths and borders of rocky woods, Ontario and western New York to Michigan. 



10. Aster roscidus Burgess. 



Dewy-leaf Aster. (Fig. 3744-) 

 Clammy-hairy, odorous, copiously glandular 

 when young, somewhat so at maturity; stem 3 

 high, or less. Basal leaves in close colonies, 

 coriaceous, the earlier ones cordate- quadrate, 

 low-serrate, the sinus deep, narrow, the later, 

 or winter leaves elliptic, long-petioled, often 

 prostrate, often 5' long; stem leaves chiefly or- 

 bicular and not cordate, with short broadly 

 winged petioles, rarely slender-petioled; inflor- 

 escence convex, sometimes irregular; involucre 

 hemispheric, its bracts chiefly with rounded 

 ciliate tips, rays 14-16, broad, clear violet; disks 

 at first golden yellow, soon turning red; pappus 

 long, white, copious. 



In slight shade and rich cleared woodlands, 

 Maine to Pennsylvania and Michigan. Aug.-Sept. 



11. Aster ianthinus Burgess. Violet 

 Wood Aster. (Fig. 3745.) 



Glandular, dark green, slightly strigose-pubes- 

 cent. Stem erect, or decumbent, 2-3 tall; leaves 

 thinnish, rough, the lower and basal ones orbicular 

 to oblong, 5 / long, or less, abruptly acuminate, low- 

 serrate or crenate; the sinus broad, open, shallow, 

 upper leaves sessile by a narrowed base, crenate- 

 serrate; inflorescence open, nearly naked, pedun- 

 cles slender, divergent; heads large; rays 10-13, 

 long, very deep violet or sometimes pale, 4 // -6 // 

 long; bracts green-tipped, little pubescent. 



On shaded banks and along woodland paths, Maine 

 to Lake Erie and West Virginia. July-Oct. 



