COMPOSITE. 143 



denticulate with spinulose teeth, sometimes incised, some upper or fascicled ones varying 

 toward linear and entire : heads more or less glomerate at the end of the branchlets, 15-35- 

 flowered, 4 or 5 lines high : bracts of the turbinate or campanulate involucre with obtuse pr 

 sometimes acutish or mucronate-acute green tips (these occasionally beariug an indistinct 

 resinous gland) : pappus of rather rigid and very unequal bristles. — B. veneta & B. Menziesii, 

 Gray, Proc. Am. Acad. viii. 638, & Bot. Calif, i. 315. Baccharis veneta, HBK. Nov. Gen. & 

 Spec. iv. 68. Linosyris Mexicana, Schlecht. Hort. Halens. 7, t. 4. Aplopappus discoideus, 

 DC. Prodr. v. 350. A. Menziesii, Torr. & Gray, PI. ii. 242. Pyrrocoma Menziesii, Hook, & 

 Am. Bot. Beech. 351. Isocoma vernonioides, Nutt. Trans. Am. Phil. Soc. vii. 320. (B. tri- 

 dentata, Greene, Bull. Torr. Club, 1. c, Linosyris dentata, Kellogg, Proc. Calif. Acad. ii. 16, is 

 apparently a form of this, from Cedros Island off Lower California.) — Southern part of 

 California (first coll. by Menzies) to borders of Arizona. (Mex.) 

 B. Hartwegi, Gray. Cinereous-puberulent or glabrate, a. foot or two high : leaves from 

 linear to narrowly oblong, pinnatifid; the lobes 5 to 11, oblong-linear, short (only a line or 

 two long) : heads smaller than in the preceding, into which it may pass. — Hemsl. Biol. 

 Centr.-Am. Bot. ii. 115. — S. Arizona, Palmer (taken forB. coronopifolia in Proc. Am. Acad, 

 viii. 639), Lemmon. (Mex.) 



32. SOLIDAGO, L. Golden-kod. (Solidus and ago, to make solid or 

 draw together, in allusion to reputed vulnerary properties.) — Perennial herbs 

 (one species somewhat shrubby) ; with mostly strict stems, entire or serrate alter- 

 nate leaves, the cauline sessile or nearly so, the radical tapering into margined 

 petioles (never cordate) ; the small heads thyrsoid-glomerate, or sometimes 

 corymbosely cymose, or more commonly in racemiform secund clusters ; the 

 flowers yellow, or in one species whitish in the disk and white in the ray ; rarely 

 the rays wanting. — Gen. ed. 1, 253 (name from Vaill.) ; Torr. & Gray, Fl. ii. 195. 

 — A large genus, of nearly 100 species, mostly Atlantic N. American, but with 

 several Pacific species, a few Mexican or S. American, one or two European and 

 N. Asiatic : fl. late summer and autumn. — For notes on the species in the older 

 herbaria, and a synopsis, see Proc. Am. Acad. xvii. 177-199. 



S. lateriflora, L. Spec. ii. 879, is Aster diffusus, Ait. 



S. Noveboracensis, L. 1. c, is probably Aster Tartaricus, and not North American. 

 Species founded on garden plants and not identified with, or obviously referable to, North 

 American originals, are the following : — 



S. ambIgua, Ait. Kew. iii. 217, cult. 1759 by Miller, of unknown source, appears to have been 

 some European form of S. Virgaurea, although later plants cultivated under this name may be 

 derivatives of S. latifolia, L. 



S. ELLfpTicA, Ait. Glabrous and smooth up to the flowering branches, 2 or 3 feet high, 



equably leafy : leaves of rather firm texture, oval or oblong, acuminate at both ends, the larger 



3 or 6 inches long, l£ or 2 wide, more or less serrate with fine acute teeth, somewhat veiny : 



thyrsus somewhat leafy ; the heads (3 lines long) racemose-paniculate on erect branches, little 



or not at all secund : bracts of the involucre oblong-lanceolate, acutish or obtuse : rays 7 to 9 : 



akenes villous-pubescent. — Kew.iii.214; DC. Prodr. v. 334 ; Gray, Proc. Am. Acad. xvii. 181. 



S. plantaginea, Desf. Cat. ed. 3, 402. — Cultivated from early times in European gardens, not 



identified as indigenous. The typical form is here taken to be that of the Banksian herbarium, 



cult. hort. Kew. 1778. A second original specimen, to which the syn. Mill. Diet, belongs, is 



Var. axillifl6ra, Gray, 1. c. Leaves of somewhat firmer texture, from oval to broadly 



lanceolate : heads rather larger, in short or somewhat elongated and racemiform erect or 



spreading clusters, which are mostly axillary and shorter than the leaves. — S. Latifolia, L., 



as to Pluk. Aim. 389, t. 235, f. 4. S. latissimifolia, Mill. Diet. ed. 7. S. lateriflora, Willd. 



Spec. iii. 2057, &c., not L. nor Ait. S.fragrans, Willd. Enum. Suppl. 331, a narrower-leaved 



form. S. verrucosa, Schrad. Hort. Goett. 12, t. 6 ■? S. Clelios, DC. Prodr. v. 331, & perhaps 



S. dubia, Scop. Del. Insub. ii. 19, t. 10. — Cultivated from ante-Linnsean times in European 



collections, not identified in N. America, but doubtless of American origin. 



