152 COMPOSITE. Solidago. 



cauline 4 to 8 inches long, tapering gradually into a margined petiole; some ascending 

 primary veins obvious : thyrsus narrowly oblong or virgate, dense, the short clusters ap- 

 pressed : heads 3 lines long ; bracts of the involucre narrowly oblong or nearly linear. — 

 Jour. Acad. Philad. vii. 101, mainly; Gray, Proc. Am. Acad. xvii. 193. S. sliicfji, Hook. 

 Fl. ii. 4, in part ; Torr. &, Gray, Fl. ii. 204, not Ait. — Bogs and wet ground, Newfoundland 

 and Canada to L. Superior, south to New England and the mountains of Pennsylvania. 

 S. speciosa, Nutt. Commonly 3 to 6 feet high and robust : leaves thickish and generally 

 ample, oval, ovate, or oblong, entire or little serrate, rather abruptly narrowed into a sessile 

 base, or the larger into a winged petiole (these often 4 to 6 inches long and 2 or 3 wide); 

 uppermost small and lanceolate or oblong; primary veins spreading and oliscure, seldom 

 . more obvious than the finely reticulated veinlets : thyrsus narrow, composed of numerous 

 short or rarely elongated spiciform clusters, rigid, rather showy : heads 3 or 4 liiie.'^ long: 

 bracts of the well-imbricated involucre of firm texture, narrowly oblong, very obtuse, and 

 with a greenish midnerve. — Gen. ii. 160 (excl. syn. Pers.) ; Torr. & Gray, Fl. ii. 205. 

 S. sempervirens, Miilix. Fl. ii. 119, in part. S. petiolaris, :\Iuhl. Cat. 79, not Ait. — Margin of 

 woodlands, in moist or rather fertile soil, Canada and £. New England to N. Carolina and 

 west to Arkansas. 

 — _■ Var. angustata, Tokr. & Gray, 1. c. Stem 2 or 3 feet high : leaves smaller; the 

 lower spatulate-oblong or oblanceolate, 2 to 4 inches long, seldom an inch wide, sometimes 

 entire ; upper an inch or two long : thyrsus commonly more simple and virgate, sometimes 

 racemosely compound. — S. erccta ? Ell. Sk. ii. 385 ; UC. Prodr. v. 340 t — Sandy open 

 ground or prairies. New Jersey to Minnesota and south to Florida and Texas. 



Var, rigidiuscula, Torr. & Gray, 1. c. A form of the var. anguslata, growing in 

 dry open places, with more rigid and rougher-edged small leaves. — Jlinnesota to Nebraska 

 and Texas. 



+-i- -w- +H- ++ +H- Leaves veiny, at least the lower serrate (except sometimes in (S./wncen): heads 

 racemosely paniculate; the racemifornx clusters when well developed secund and commonly 

 scorpioid-recuvvhig, sometimes not so in the earlier species. Atlantic species. 



= Leaves (the lower ample, those of the branches small) shaffi-e en-scabrous on the upper face; in- 

 voliici'al bracts broadish : heads mauy-flowered, rather large. 



• S. patula, JMriiL. Stem strongly angular and striate, rather stout, 2 to 4 feet high, Avith 

 rigid elongated branches : leaves pale green, loosely venose and venulose, sharply and rather 

 finely serrate, smooth and glabrous (as is the stem), except the upper face whicli is strikingly 

 scabrous when rubbed from point to base (being thickly set with minute sharp callosities 

 autrorsely directed) ; cauline oval or oblong, 4 to 8 inches long besides the abruptlv nar- 



• rowed Ijase or ringed petiole of the lowest; the uppermost and those of the flowering 

 branches sometimes eiiualliug the at length spreading clusters of the narrow or virgate thvr- 

 sus : heads 3 or even 4 lines long : bracts of involucre linear-oblong, very obtuse : rays 6 or 7, 

 small, liglit yellow : disk-flowers 8 to 12 : akenes minutely pubescent. — Willd. Spec. iii. 2059 ; 

 Torr. & Gray, Fl. ii. 213. S. asperaUi, Pursh, Fl. ii. 538, as to herb. Lamb. " ,v. anqdata, 

 Muhl.," ex Spreng. in herb. Willd.; Schrad. in DC. Prodr. v. 331. S. Frankii, liochst. & 

 Steud. in distrib. Frank. — Wet soil, Canada to Wisconsin, south to Georgia, JMissouri, and 

 Texas. Flowering rather early. 



Var. strictula, Torr. & Gray, 1. c. Narrower leaved, and with simpler and strict 

 , inflorescence. — S. salicina, EU. Sk. ii. 389, ex cliar. .?. scabra, Hook. Comp. Bot, Mag. i. 

 97. — Commoner soutliward to Louisiana and Florida. 



= = Leaves not scabrous, both faces minutely cinereous-puberident : heads small, manv-flowered, 

 in an erect panicle, hardly secund, vernal ! 



S. verna, M. A. Curtis. Stem 2 feet liigh, cinereous-pubescent, bearing a, loose naked 

 panicle: leaves of rather firiu texture; radical o\al or ovate, niinutely .-ierrate (3 or 4 inches 

 long), abruptly contracted into a long margined jietiole, the primary veins (2 or 3 pairs) con- 

 . spicuous; upper cauline small and sparse, oblong, entire: heads barelv 3 lines long : bracts 

 of the involucre rather iiarmw and thni : ra) s 10 or 1 2 : akenes ]ail)Csi'ont. — Torr.^& Gray, 

 Fl. ii. 205. — Ojjen and sandy pine woniis, near Wilmington, N. Carolina, Ciirlis. Flowering 

 in May I Obscure species, not since mot with. 



= = = Leaves commonly thin and membranaceous, Inoselv veinv (if firmer the vcinlofs of the 

 lower face conspicuously reticulated), small .ir not lar-c:' head.s small (about 2 lines long): 

 bracts of the involucre rather few and narrow, obtuse: akenes pubescent. 



