Lessingia. COMPOSITE. 161 



beneath : outer bracts of the involucre ovate or oblong, and the inner linear : rays 15 to 20 : 

 disk-flowers 8 to 12. — Mant. 114; Ait. Kew. iii. 214; Torr. & Gray, Fl. ii. 226. S. gramini- 

 folia, Ell. Sk. ii. 391. Chrysocoma graminifolia, L. Spec. ii. 841. Euthamia graminifolia, Nutt. 

 Gen. ii. 162 (subgen.), & Trans. Am. Phil. Soc. 1. c. — Low ground, Canada to Georgia, and 

 northwest to Montana. 



S. tenuifolia, Pursh. Lower (a foot or two high), slender, more resinous-atomiferous 

 and glutinous, but glabrous : leaves all narrowly linear, one-nerved or with a pair of indis- 

 tinct lateral nerves : heads smaller : rays 6 to 12 : disk-flowers 5 or 6. — PI. ii. 540 ; Ell. Sk. 

 ii. 392; Torr. & Gray, 1. c. 5. lanceolata, var. minor, Michx. PI. ii. 116. Erigeron Carolini- 

 anum, L. Spec, being Virguurea Carol, &c, Dill. Elth. 412, t. 306, f. 394. Euthamia tenui- 

 folia, Nutt. I. c. — Sandy or gravelly and moist or dry ground, coast of New England to 

 Florida and Texas. 



S. leptocephala, Torr. & Gray. A foot or two high, with more simple branches, wholly 

 smooth and glabrous except the margin of the leaves ; these with prominent midrib, very 

 obscure lateral nerves, and no apparent veins : bracts of the involucre and the head narrower : 

 rays 8 or 10: disk-flowers 3 or 4. — Fl. ii. 226. — Low ground, W. Louisiana and Texas; 

 first coll. by Leavenworth and Drummond. Also, in a narrow-leaved form, N. W. Arkansas, 

 F. L. Harvey. 



§ 3. Chrysoma, Torr. & Gray. Suffruticose : leaves fleshy-coriaceous, peculi- 

 arly areolate-venulose in the dried state : otherwise as § Virgaurea. — Chrysoma, 

 Nutt., in part. 



S. pauoiflosculosa, Michx. A foot or two high, much branched from the shrubby base, 

 glabrous, somewhat viscid : leaves from spatulate-oblanceolate to linear, very obtuse, entire, 

 an inch or two long and with a contracted petiole-like base, one-nerved or obscurely 3-nerved, 

 not venose, but minutely and uniformly venulose, the impressed veinlets forming microscopic 

 quadrate or roundish meshes over both surfaces : thyrsus somewhat corymbosely paniculate ; 

 the clusters only obscurely secund : heads 3 or 4 lines long : rays 1 to 3, rather large : disk- 

 flowers 3 to 5, deep yellow: akenes pubescent: pappus brownish. — Fl. ii. 116; Torr. & 

 Gray, Fl. ii. 224. Chrysoma solidaginoides, Nutt. in Jour. Acad. Philad. vii. 67, & Trans. Am. 

 Phil. Soc. vii. 325. — Dry hills and sand-banks on the sea-shore, S. Carolina to Florida and 

 Alabama; flowering late. (Bahamas.) 



33. BRACHYCH^TA, Torr. & Gray. (Bpa X wr, short, X acr V , bristle, 

 from the very abbreviated setose pappus, which, with the cordate leaves, some- 

 what artificially distinguishes the genus from Solidago.) — Single species, flower- 

 ing in late summer and autumn. — Fl. ii. 194. 



B. Cordata, Torr. & Gray, 1. c. Soft-pubescent : stems 2 or 3 feet high from a perennial 

 root : leaves membranaceous, veiny, mostly acutely serrate ; radical rather large, round- 

 cordate, on long and nearly wingless petioles ; cauline ovate, the lower on winged petioles : 

 heads 2 or 3 lines long, narrow, solitary or fascicled in the racemiform and secund clusters 

 or narrow thyrsus : bracts of the involucre with greenish tips, inner ones linear-oblong : 

 flowers golden yellow, those of the disk and short ray each 4 or 5 : pappus shorter than the 

 akene and shorter than the proper tube of the corolla. — Solidago sphace/ata, Raf. Ann. Nat. 

 (1820), 14. S. cordata, Short, Cat. PI. Kentucky, Suppl. Brachyris ovatifolia, DC. Prodr. v. 

 313. — Open woods, &c, W. North Carolina and E. Kentucky to the upper part of Georgia; 

 apparently first coll. by Rajinesque. 



34. LESSfNG-IA, Cham. (Dedicated to the eminent German author, 

 G. E. Lessing, and to his grand-nephews, Karl Lessing the painter, and Christian 

 Fr. Lessing, author of Syn. Gen. Compositarum.) — Calif ornian annuals or bien- 

 nials, flocculent-woolly when young ; with alternate leaves and rather small heads 

 of flowers, either of the xanthic or cyanic series ; the pappus becoming fuscous 

 or rufous. Nerves of the corolla-lobes deeply intramarginal, the aestivation indu- 



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