940 FLORA, 



ovate or oval, short-acuminate, 7-40 cm. long, 2-12 cm. wide, narrowed into 

 margined petioles, sharply and coarsely serrate; upper leaves sessile, ovate to 

 oblong, acute or acuminate, more or less serrate, smaller; rays 5-7, large; bracts 

 of the involucre oblong, obtuse; achenes glabrous or nearly so. In rich woods, 

 Me. and Out. to Ohio, south to Va. July-Oct. 



35. Solidago rupestris Ra£ Rock Goldenrod. (I. F. f. 3703.) Stem 

 slender, 6-9 dm. high. Leaves thin, 5-12 cm. long, 6-10 mm. wide, acuminate 

 at the apex, narrowed at the base, sessile, or the lowest petioled, glabrous; heads 

 small, 3 mm. high, secund on the short spreading branches of the small panicle; 

 rays 4-6, short; bracts of the involucre thin, linear; achenes small, nearly glabrous. 

 Rocky banks of streams, Penn. to D. C, W. Va., Tenn. and Ind. Aug. -Sept. 



36. Solidago serotina Ait. Late Goldenrod. (I. F. f. 3704.) Stem 

 stout, 9-25 dm. high, glabrous, sometimes glaucous. Leaves thin, sessile, or the 

 lowest petioled, glabrous on both sides but more or less rough-margined, 7-15 cm. 

 long, 4-25 mm. wide, acuminate at the apex, narrowed at the base; heads 5-7 mm. 

 high; bracts of the involucre oblong, thin, obtuse; rays 7-15, rather large; achenes 

 finely pubescent. In moist soil, Newf. to Br. Col., south to Ga., Tex., Nev. and 

 Ore. Aug. -Oct. 



Solidago serotina gigantea (Ait.) A. Gray. Leaves hispid or pubescent on the lower 

 surface, at least on its prominent veins. With the type, at least in the East. 



37. Solidago Missouriensis Nutt. Missouri Goldenrod. (I. F. f. 3705.) 

 Stem rather slender, 9-15 dm. high. Leaves firm or thick, those of the stem ses- 

 sile, acuminate at the apex, narrowed at the base, 5-10 cm. long, very rough- 

 margined, entire, or sparingly serrate with low sharp teeth, the basal and lowest 

 ones larger, spatulate, petioled; heads 5-6 mm. high; bracts of the involucre 

 oblong, greenish-tipped, obtuse, or the inner acute, thick; rays 6-13, short. On 

 dry prairies, Manitoba and Minn, to Tenn., Wash., Neb. and Tex. Autumn. 



38. Solidago Shortii T. & G. Short's Goldenrod. (I. F. f. 3706.) Stem 

 slender, 6-12 dm. high. Leaves sessile (the lowest petioled ?). acute or acuminate at 

 the apex, glabrous on both sides, the larger 5-10 cm. long, 10-12 mm. wide, 

 sharply serrate with rather small and distant teeth, the upper gradually smaller, 

 sparingly serrate, or entire; heads about 6 mm. high; involucre narrowly campanu- 

 late, its bracts linear-oblong, obtuse; rays 5-7, rather small. On rocks at the 

 Falls of the Ohio River and in northwestern Ark. July-Aug. 



39. Solidago Gattingeri Chapm. Gattinger's Goldenrod. (I. F. f. 

 3707.) Stem slender. 6-9 dm. high, branched at the inflorescence. Leaves firm 

 glabrous beneath, rough above, ciliolate, the lower and basal ones acutish, 7-15 cm 

 long, 12-20 mm. wide, serrate with low distant teeth, narrowed into margine 

 petioles, entire, sessile; heads 4-5 mm. high; bracts of the involucre oblong, ver 

 obtuse; rays 6-10; achenes puberulent, or glabrous below. In dry soil, Tenn. an 

 Mo. July-Aug. 



40. Solidago Canadensis L. Canada Goldenrod. (I. F. f. 3708.) Stei l 

 stout, puberulent-pubescent, or hirsute, 6-25 dm. high. Leaves acute at eacheiu, 

 the lower ones sharply serrate and petioled, 7-15 cm. long, 8-25 mm. wide, tl | 

 upper smaller, entire, sessile; heads 3-4 mm. high, very numerous; bracts of tl 

 involucre linear, obtuse or acutish; rays 9-15; achenes glabrous or somewh 

 pubescent Usually in dry soil, N. B. to the N. W. Terr, and Br. Col., south 

 l'la. and Ariz. Aug. -Nov. 



Solidago Canadensis procera (Ait.) T. & G. Leaves less serrate, sometimes all 

 entire, cinereous-pubescent with short appressed hairs. \\ ith the type. 



Solidago Canadensis glabnUa Porter. Stems 6-12 dm. high, glabrous or nearly 

 below, puberulent above ; leaves narrowly lanceolate, smooth above, pubescent on tl 

 veins beneath ; panicles and heads smaller than in the type. Me. to northern N. Y. an 

 Penn. 1 



Solidago Canadensis scabriiiscula Porter. Leaves shorter, spai ingly serrate or entireL 

 rough above, rugose beneath; heads mostly larger than in the type. N. Y. and Pennl 

 to Kla. and Tex. 



Solidago JCanadensis gilvocanescens Rydberg. A foot high, or less, leafy, canes- 

 cent, yellowish: leaves remotely serrate above the middle, or entire; inflorescence dense; 

 heads smaller than in the type. Minn, to Mont, and Kans. 



41. Solidago nemoralis Ait. Gray or Field Goldenrod. Dyer's 

 Weed. (I. F. f. 3709.) Slender, 1-6 dm. high, finely and densely pubescent. 



