146 COMPOSITE. Solidago. 



larger than in the preceding (3 lines long), usually more spicately clustered and with more 

 numerous flowers (rays about 8) : involucre of more imbricated and broader very obtuse 

 narrowly oblong bracts, externally granular-puberulent when young : akenes canescently 

 hirsute. — Chapm. Fl. 209. S. amhujua, var. ? lancifolia, Torr. & Gray, Fl. ii. 200. — Damp 

 woods of the higher Alleghanies in N. Carolina and Tennessee ; first coll. by Curtis. 

 S. Curtlsii, Torr. & Gray. Glabrous or somewhat pubescent : stem commonly branching, 

 slender, moderately angled, 2 feet high : leaves from oblong to elongated-lanceolate, with 

 , gradually attenuate entire base, subsessile, serrate with ascending subulate teeth, 3 to 5 

 inches long : heads in looser clusters, smaller and fewer-flowered (rays 4 to 7) : bracts of the 

 involucre much fewer, linear, obtuse. — Fl. ii. 200 (excl. var.); Chapm. 1. c. S. flexi- 

 caulis, in part, in herb. Michx. — Open woods, mountains of Virginia to Georgia, at low or 

 moderate elevations ; first coll. by Mic/iaux, next by Curtis. 



Var. pubens, Gray, 1. c. From sparsely to somewhat densely pubescent : leaves 

 from ovate with tapering base to lanceolate. — S. jmhens, M. A. Curtis in Torr. & Gray, 

 Fl. ii. 198; Chapm. 1. c. — Common in the mountains of Carolina, Tennessee, and Georgia; 

 first coll. by Curtis. 



-1— H— Akenes glabrous: inflorescence less axillarj'-clustered, more yirgately thyrsoid. 



S. monticola, Torr. & Gray. Nearly glabrous : stem slender, a foot or two high : leaves 

 from oblong-ovate to oblong-lanceolate, tliinnish, acuminate or acute at both ends, 1 to 4 

 Indies long ; the lower rather sparingly serrate with acute teeth : heads small : involucral 

 bracts linear, acutish : rays 5 or 6, yellow. — Chapm. Fl. 209. S. Curtisii, var.? monticola, 

 Torr. & Gray, Fl. ii. 200. — Alleghany Mountains, from Maryland to Georgia and Alabama; 

 first coll. by Curtis. 



S. bicolor, L. Puberulent, commonly cinereous: stem often hirsute below, strict, a foot to 

 a yard (rarely a span) high: leaves oblong or the lower obovate and ovate, short, mostly 

 obtuse ; lower slightly or obtusely serrate : clusters crowded in a simple or compound often 

 elongated thyrsus : involucral bracts linear-olilong, very obtuse : rays from 5 to 14, small, 

 white, and the disk-corolhis also white or yrllowish. — Mant. 114; Ait. Kew. iii. 216; Torr. & 

 Gray, Fl. ii. 197. S. alba. Mill. Diet. Virr/a-aurea flore alho, etc., Pluk. Aim. t. 114, fig. 8. 

 S. vimiiiea, Bosc in herb. Poiret, therefore S. ererta, DC. Prodr. v. 340. Astsr hicolor, Nees, 

 Ast. 283. — Dry ground. Nova Scotia to Virginia and the upper part of Georgia. 



Var. concolor, Torr. & Gray, 1. c. Flowers both of ray and disk yellow (or some 

 rays yellow, others white) : foliage sometimes greener, sometimes lanate-hirsute. — S.hispida, 

 Muhi. in Willd. Spec. iii. 2063. S. hirsuta, Nutt. in Jour. Acad. Philad. vii. 103, & Trans. 

 Am. Phil. Soc. n. ser. vii. 327. — New Brunswick and Maine to Lake Superior, Missouri, and 

 Tennessee. 



Var. lanata, Gray, 1. c. Low, villous-lanate : heads simply spicately crowded at the 

 summit of the stem or branches. — 5'. lanata, Hook. Fl. ii. 4. — Plains of the Saskatchewan 

 toward the Rocky Mountains, Drummond. 



* * * Heads mostly large for the genus (in some C and seldom less than 4 lines long, smaller 

 in forms of /S. hvmilis, &c.), nnuiy-flowered, collected in thyrsoidal inflorescence which is not at 

 all secund nor strictly racemiform (but in two species approaches corymbiform) : rays 6 to 14: 

 leaves veiny from a simple midrib, in most species bright green: stems commonly low or not 

 tall. (From the inflorescence a few other species, such as S. sjjeciusa, might be sought here.) 



— THYRSIFLORyE. 



•i— Southwestern species, fully 2 feet high: leaves very numerous up to or into the inflorescence, 

 uniform in size and shape, short (inch or two long), closely sessile, of rather firm texture, en- 

 tire, rough-margined, somewhat scabrous: pubescence minute and somewhat cinereous : heads 

 4 lines long: bracts of the involucre narrow, obtusish, or in some acute. 



S. Bigelovii, Gray. Cinereous-puberulent : leaves oval and oblong, mostly obtuse at both 

 ends and hispidulous on the margin: thyrsus simple or compound, rather dense or at 

 length open : involucre broadly campanulate, puberulent : akenes minutely pubescent or 

 glabrate. — Proc. Am. Acad. xvi. 80, xvii. 190. S. petiolaris. Gray in Bot. Mex. Bound. 79, 

 not Ait. — Mountains of New Mexico and Arizona, Bigelow, Wri(jht, Parry, Greene, Lemmon. 

 (Adj. Mex.) 



Var. VTrightii, Gray, 1. c. Leaves sometimes narrower : thyrsus simple and short, 

 of comparatively few heads, or corymbiform almost in the manner of the Corymiosie. — 



