Lessingia. COMPOSITE. 161 



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

 disk-flowers 8 to 12. Mant. 1 14 ; Ail. Kcw. iii. 21 : ; Torr. & Gray, Fl. ii. 226. S. tjranini!- 

 folia, Ell. Sk. ii. 391. Chrysocoma gra mini folia, L. Spec. ii. 841. Eiilltmnin (ji-iuniiii/'nlin, A'uU. 

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

 northwest to Montana. 



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

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

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

 ii. 392; Torr. & Gray, 1. c. S. lanceo/ata, var. minor, Michx. Fl. ii. 116. Eritjcron Carolini- 

 (iiium, L. Spec., being Viryuurea Carol,, c., Dill. Eltli. 412, t. 306, f. 394. Euthamia tenui- 

 folia, Nutt. 1. c. Sandy or gravelly and moist or dry ground, coast of New England to 

 Florida and Texas. 



S. leptocephala, TORE. & 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, \V. Louisiana and Texas ; 

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

 /*'. 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. pauciflosculosa, MICHX. A foot or two high, much branched from the shrubby base, 

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

 an inch or two long and with a contracted petiole-like base, oue-uerved 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 seeuud : 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. Chrysomn 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. BRACHYCHJfiTA, Torr. & Gray. (Bpa X ik, short, X am/, 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. --F1. ii. 194. 



B. cordata, TOER. & GRAY, 1. c. Soft-pubescent : stems 2 or 3 feet high from a perennial 

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

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

 heads 2 or 3 lines loug, narrow, solitary or fascicled in the racemiform and serund 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. Solidayo spliacelata, Raf. Aim. Nat. 

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

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

 apparently first coll. by Rafinesque. 



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. Compositaruin. ) Californian 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 intramargirial, the aestivation iridu- 



11 



