950 FLORA. 



chiefly 6-8 mm. long. In grassy openings in woods, often in dense patches, N. Eng. 

 and N. Y. to Va. 



Aster divaricatus curtifolius Burgess. Stem erect, reddish, smooth, sometimes glau- 

 cous; leaves small, dull green, firm, ovate to orbicular, the sinus broad Bounded, the apex 

 obtuse or apiculate; inflorescence loose, flattish; disks turning purple; rays about i cm. 

 long; green tips of the involucral bracts conspicuous. In moist woods, N. Y. to Va. 



Aster divaricatus deltoideus Burgess. Delicate, 4.5 dm. high or less; lower leaves 

 triangular, cordate with a broad sinus or subtruncate, the apex incurved-acuminate ; the 

 teeth large, sharp; petioles often all filiform; veins directed forward; heads nearly as in 

 the preceding variety. In moist shaded places, N. Eng. to N. Y., Va. and Tenn. 



Aster divaricatus persaliens Burgess. Stems virgate, 7.5 dm. high, or less; leaves 

 extremely thin, firm, chiefly lanceolate-acuminate, long and narrow, the teeth very slen- 

 der, salient or recurved, the lowest ovate with a small narrow sinus ; disk maroon. In 

 deep shade, N. Eng. and N. Y. to Va. and Ky. 



Aster divaricatus fontinalis Burgess. Plants solitary; basal leaves often numerous, 

 tufted, thin, smoothish, sharply serrate or dentate, 15 cm. long by n cm. broad, or 

 smaller, broadly oval, acute, the base subcordate or rounded; involucre turbinate, its bracts 

 with definite green tips. In springy places and grassy ditches in open sunny situations, 

 N. Eng. and N. Y. to Va. 



3. Aster tenebrosus Burgess. LONG-LEAVED WOOD ASTER. (I. F. f. 3736.) 

 Stems solitary or scattered, glabrate, striate, 6-9 dm. high. Leaves very thin and 

 smooth, slender-petioled, broadly oblong, coarsely toothed with remote acuminate 

 teeth, abruptly long- acuminate at the apex, the basal sinus broad, rounded, shal- 

 low, except in the lowest ones; leaves of the inflorescence lanceolate, subentire, 

 sessile, sometimes I dm. long; inflorescence broadly corymbose, heads about 8mm. 

 high, often 3 cm. broad; rays usually 9-12; disk pale yellow, becoming purplish 

 brown, the florets funnelform with a long slender tube; outer bracts chiefly elon- 

 gated-triangular, acute, green, the others linear, obtusish, the green tips lance- 

 linear. In moist dark woodlands, N. Y. to Va. Peculiar in its large dark leaves 

 with coarser teeth than in the preceding species. Aug. -Sept. 



4. Aster leptocaulis Burgess, n.sp. SMOOTH-STEMMED ASTER. Stem 

 slender, smooth, 4 dm. high or more, the branches puberulent, erect-ascending, 

 leafy to the inflorescence. Stem-leaves lanceolate or the lower ovate-lanceolate, 

 the larger 1.5 dm. long, thin, slightly rough above, finely and densely pubescent 

 beneath, long-acuminate, sharply serrate nearly or quite to the base, the upper 

 sessile, or very nearly so, the lower petioled and cordate or subcordate at the base ; 

 inflorescence corymbose, leafy; peduncles slender, 1-2.5 cm - l n g; involucre 

 turbinate-campanulate, about 8 mm. high, its bracts obtuse or obtusish, ciliate; 

 heads about 2.5 cm. broad. Milwaukee. Wis., collected by Dr. H. E. Hasse. 



5. Aster furcatus Burgess. FORKING ASTER. (I. F. f. 3738.) Stem leafy, 

 4.5 dm. high, or less, loosely forked above. Leaves hispid above, hispidulous 

 beneath, firm, saliently cut-toothed, the lower ovate, short-petioled, with a small 

 or shallow sinus, the upper sessile, often 12.5 cm. long by 6 cm. wide, the upper- 

 most elliptic-oblong, often 8.5 cm. long; heads few (5-20), slender-peduncled; 

 involucre with a truncate or rounded base; rays 3-toothed; disk turning brown, 

 the florets funnelform with rather broad lobes; pappus long, straight; achenes 

 pubescent, subangular, not constricted at the summit. In woods, especially on 

 shaded cliffs, 111. and Mo. Aug. -Oct. 



6. Aster glomeratus (Nees) Bernh. BERNHARDI'S ASTER. (I. F. f. 3739.) 

 Loosely clustered, dull green. Leaves not large, mostly short-pilose beneath, 

 thickish, rough above; basal leaves present, these and the lower stem-leaves cor- 

 date with a deep narrow sinus, the teeth sharp, rather close and small ; petioles 

 slender, ciliate; upper leaves much smaller, ovate, truncate with a short broadly 

 winged base, or the uppermost ovate to lanceolate, sessile,, entire; inflorescence 

 compact, of many glomerate clusters, round-topped; heads about 8 mm. high; 

 bracts pubescent, obtuse, green, the inner twice as long as the outer; rays about 

 6, cream-white, short, soon deciduous; disk turning brown. In moist thickets, 

 swamps, or ravines, N. Y. and Penn. July. 



7. Aster Claytoni Burgess. CLAYTON'S ASTER. (I. F. f. 3740.) Similar 

 to A. divaricatus; stems red, tough. Leaves chiefly ovate-lanceolate, not large, 

 rough, thick, slender-petioled, coarsely serrate, pale, or dull, acuminate, the upper 

 sessile by a broad base, lanceolate-triangular, serrulate; inflorescence high, with 

 percurrent axis, the long suberect branches each bearing a small umbelliform clus* 



