SOLIDAGO. LXXV. COMPOSITE. 329 



those of the upper part of the stem very entire, lower ones serrate ; flowering 

 branches paniculate, with close, short racemes; rays elongated; involucre scales 



obi use. A tall species, in dry fields and rocky woods, Ct. to Mo. and Tex. 



Abundant in the western prairies ! Stem 3 5f high, round, striate, with rigid 

 leaves, of which the radical onqs are sometimes near a foot long. Heads 

 larger than in any other species described in this Flora. Rays 7 9, about 

 3" by 1", deep yellow. Aug. Sept. 



4. S. OHIENSIS. Riddell. 



Glabrous ; lower Ivs. lanceolate, obtuse, entire or serrulate above, tapering 

 to long petioles, upper oblong-lanceolate, abruptly acute, sessile, entire ; Ms. 

 numerous, 15 20-flowered, rather large, in a dense, fastigiate corymb. Mead 

 ows and prairies, western N, Y. to la. ! A perfectly smooth species, 2 3f high 

 Stem simple, reddish, leafy. Leaves of a firm texture, the radical 6 8' by 

 1 ii' ? on petioles of equal length, middle cauline, about 2' by 5". Heads 

 about 6-rayed. Sept. Oct. 



5. S. RIDDELLII. Frank. (S. Mexicana. /?. Hook.) Ridd^'s Solidago. 

 Stout and nearly glabrous, corymbosely branched ; radical Ivs. very long, 



lance-linear, entire, acute, on long, margined, carinate petioles, cauline Ivs. 

 clasping at base, arcuate, carinate, narrow, acute, entire ; branches leafy ; hds. 

 20 24-flowered, densely clustered in a compound, fastigiate corymb. Wei 

 prairies Ohio ! Wis. to Mo., not uncommon. A well marked species, 15 30' 

 high. Radical leaves 1218' long, almost grass-like, cauline 36' by ', with 

 a strong mid-vein, and generally much recurved. Rays small, 6 9. Sept. 



3. Heads in glomerate, axillary clusters. 



6. S. SQUARROSA. Muhl. Ragged Goldenrod. 



St. stout, simple, erect, thickly pubescent above ; Ivs. smooth, lower ones 

 very broad, oval-spatulate, serrate, acute, upper ones lanceolate-elliptic, high- 

 est, entire ; roc. glomerate, rigid and pubescent ; scales squarrose with spread- 

 ing green tips; hds. many-flowered ; rays 10 12, elongated. A handsome spe- 

 cies, found on rocky hills, Can. to Penn. Stem 3 5f high. Heads very 

 large, forming a long terminal spike of short, dense, axillary fascicles or ra- 

 cemes. Sept. 



7. S. OSESIA. Ait. (S. axillaris. Ph.) Blue-stemmed Goldenrod. 



St. erect, round, smooth and glaucous, often flexuous ; Ivs. smooth, linear- 

 lanceolate, lower ones serrate ; roc. axillary, erect. A very elegant species, in 

 thickets and dry woods, Can. and U. S. Stem 1 3f high, of a bluish-purple 

 color, terete and slender, somewhat flexuous, simple or branched. Leaves 

 2 5' long, ending in a long point, sessile, glaucous beneath. Racemes axilla- 

 ry, numerous, short. Flowers of a deep, rich yellow. Rays 5 7, once and a 

 half the length of the involucre. Aug. 



/?. flexicaulis. (S. flexicaulis. Ph. not of Linn.) St. flexuous, angular; Ivs. 

 ovate-lanceolate, longer than the subcapitate racemes. Leaves about 2' by '. 

 Rays pale yellow. 



8. S. LATIPOLIA. Muhl.' (S. macrophylla. Bw. S. flexicaulis. /?. Ph.) 

 St. somewhat flexuous, angular, smooth ; Ivs. broadly ovate, acuminate 



at each end, deeply serrate, smooth ; petioles marginal ; roc. axillary and ter- 

 minal. A singular and very distinct species, common in dry woods and by 

 rocky streams, U. S. and Can. Stem slender, not always perfectly smooth 

 about 2f high. Leaves 3 5' by 2 4', with acute, often long-acuminate serra- 

 tures. Clusters very short, axillary, the stem ending with a long terminal one. 

 Heads few. Sept. 



9. S. BICOLOR. (Aster bicolor. Nees.) Two-colored Goldenrod. 



Hairy ; st. simple ; Ivs. elliptical entire, acute at each end, lower ones ser- 

 rate, short-stalked; roc. short, dense, leafy, erect; invol. scales obtuse. In 



