COMPOSITAE (composite FAMILY) 



805 



beneath, all but the lowest truncate or tapering at base: — Throughout the range, 

 tlie commonest form northw. Var. sejunctus Burgess. Similar to the pre- 

 ceding variety, but most of the stem-leaves long-petioled, broad and cordate. — 

 Me. to Pa. and Wise. Var. apricensis Burgess. Freely branching from near 

 the base, bearing innumerable heads. — Me. to Pa. Var. iAnthinds (Burgess) 

 Pernald. Glands minute, rarely slipilate ; leaves thin. (Including A. ianthinus, 

 violaris, multiformis, and nobilis Burgess.) — Me. to Ont. and W. Va. 



§3. EUASTER Gray. Bracts imbricated in various degrees, with herbaceous 

 or leaf-like summits, or the outer entirely foliaceous ; rays numerous ; pap- 

 pus simple, soft and nearly uniform (coarser and more rigid in the first 

 group) ; achenes flattened. 



* Bracts well imbricated, coriaceous, with short herbaceous mostly obtuse spread- 

 ing tips; pappus of rigid bristles; stem-leaves all sessile, none heart-shaped 

 or clasping ; heads few or when several corymbose, large and showy. 



t- Lowest leaves ovate or ovate-oblong, on nearly naked petioles, some rounded 

 or subcordate at base. 



7. A. Herveyi Gray. Slightly scabrous, 3-9 dm. high, the 

 summit and peduncles glandular-puberulent ; leaves roughish, 

 obscurely serrate, the upper lanceolate ; heads loosely corym- 

 bose, 1 cm. or so high ; involucre nearly hemispherical ; bracts 

 obscurely glandular, all erect, with very short or indistinct 

 green tips; rays violet, 1-1.5 cm., long. — Borders of oak 

 woods, in rather moist soil, e. Mass. to 

 Ct. and 1j. I. Fig. 924. — An ambigu- 

 ous species, approaching the preceding 

 and the next. 



■1- H- Radical leaves {usually absent in 

 no. 11) all tapering into margined 

 petioles; involucres squarrose {hardly 

 so in no. 11) ; rootstocks slender. 



8. A. spectibilis Ait. Stems 3-6 dm. 

 high, roughish and glandular-puberulent 

 above ; leaves oblong-lanceolate or the 



lower spatulate-oblong, obscurely serrate or the upper en- 

 tire ; heads few, hemispherical; involucre 1-1.5 cm. high; 

 bracts glandular-puberulent and viscid, mostly with the 

 upper half herbaceous and spreading ; rays about 20, bright 

 violet, 2 cm. long. — Sandy soil, Mass. to Del., near the 

 coast ; also w. N. C. Aug.-Oct. Fig. 925. 



9. A. surculbsus Michx. Stems 2.5-4 dm. high, from long 

 filiform rootstocks ; leaves entire or nearly so, rigid, lanceolate 

 or the upper linear ; heads few or solitary, as in the preceding, 

 but generally smaller, the bracts hardly glandular. — Moist 

 ground, coast of N. J., and southw. Aug.-Oct. Fig. 926. 



10. A. grdcilis Nutt. Hootstocks occasion- 

 ally tuberous-thickened ; stems slender, 3^ dm. 

 high ; leaves oblong-lanceolate, entire or nearly 

 so, small (2-5 cm. long) ; heads few or several ; 

 involucre top-shaped, 6-9 mm. long, glabrous, 

 not glandular nor viscid, the coriaceous whitish 

 bracts with very short deltoid or ovate tips ; rays 

 9-12, 0.5-1 cm. long. —Pine barrens, N. J. to 

 N. C, Ky., andTenn. July-Sept. Fig. 927. 



11. A. rddula Ait. Stem simple or corym- 

 bose at the summit, smooth or sparsely hairy, 



many-leaved, 3-12 dm. high ; leaves oblong-laiu-eolate, pointed, 



sharply serrate in the middle, very rough both sides and rugose- 'J^T. A. gracilis. 



924. A. Herveyi. 



925. A. spectabilis. 



9-20, A. t-iirculosus. 



