. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 806 COMPOSITAB (COiMPOSlTK FAMILY) veined, closely sessile, 5-8om. long, nearly uniform ; heads 1-40 ; bracts of bell involucre oblong, obtuse, appressed, clearly in several series, with very short and slightly spreading herbaceous ciliate tips; rays pale violet; aohenes smooth. — Bogs and low woods, Nfd. to Del. and w. Va. July-Sept. Fig. 928. Var. strictus (Pursh) Gray. Slender, 1-8 dm. high; heads 1-8; iuvoluoral bracts more foliaoeous, acute
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 806 COMPOSITAB (COiMPOSlTK FAMILY) veined, closely sessile, 5-8om. long, nearly uniform ; heads 1-40 ; bracts of bell involucre oblong, obtuse, appressed, clearly in several series, with very short and slightly spreading herbaceous ciliate tips; rays pale violet; aohenes smooth. — Bogs and low woods, Nfd. to Del. and w. Va. July-Sept. Fig. 928. Var. strictus (Pursh) Gray. Slender, 1-8 dm. high; heads 1-8; iuvoluoral bracts more foliaoeous, acute or acutish., nearly equal. (Var. biflonis Porter.)—Damp rooky or mossy places, n. Lab. and Hudson B. to Nfd., N. B., and n. N. E. * * Involucre and usually the branehlets viscid- or pruinese- glandular, well imbricated or loose ; pubescence not silky; leaves entire {or the lower with few teeth), the cauline all sessile or clasping; rays shoicy, violet to purple; involucral bracts spreading, in few or many ranks. 928. A. A. ffrandifloras, 12. A. grandiflbrus L. Minutely hispid; stems slender, loosely much branched, 3-9 dm. high; leaves very small ( cm. long), oblong-linear, obtuse, rigid, the uppermost passing into bracts of the hemispherical squarrose many-ranked involucre ; rays bright violet, cm. long; achenes hairy.—Dry open places, Va., and soutliw. — Heads large and very showy. Fig. 929. 13. A. oblongifblius Nutt. Minutely glandular- puberulent, much branched above, rigid, paniculate- corymbose, 3-7 dm. high ; leaves narrowly oblong br lanceolate, muoronate-pointed, partly clasping, thiok- ish, cm. long, cm. wide ; involucral bracts nearly equal, broadly linear, appressed at the base; rays violet-purple; achenes canescent. — Bluffs and rocky banks, Pa. and Va. to Minn, and Kan. Sept., Oct. — Heads middle- sized or smaller. Fig. 930. Var. rigidulus Gray. Low, rarely more than 3 dm. high, with more rigid and hispidulous-soabrous lea
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