SoLiDAGO. LXXV. COMPOSITE. 329 



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

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

 obtuse. — 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 ones 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 ; hds. 

 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 — 3fhigh. 

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

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

 about 6-rayed. Sept. Oct, 



5. S. RiDDELLii. Frank. (S. Mexicana. /?. Hook.) RlddelVs 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. — Wet 

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

 nigh. Radical leaves 12 — 18' long, almost gra.s.s-like, cauline 3 — 6' by i', with 

 a strong mid-vein, and generally much recurv^ed. Rays small, G — 9. Sept. 



§ 3. Heads in gloimrate^ cumllary clusters. 



6. S. sauARRosA. 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 ; rac. 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. CjEsia. Ait. (S. axillaris. Ph.) Blue-stemmed Goldenrod. 



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

 lanceolate, lower ones serrate ; rac. 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. 



/?. Jl^xicaulis. (S. flexicaulis. Ph. not of Linn.) St. flexuous, angular ; hs. 

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

 Rays pale yellow. 



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

 jS^. somewhat flexuous, angular, smooth; Ivs. broadly ovate, acuminate 



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

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

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

 about 2rhigh. Leaves 3 — 5' by 2 — 1', with acute, often limg-acuminate serra- 

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

 Heads few. Sept. 



9. S. BicoLOR. (Aster bicolor. Nees.) Tieo-cohrred Goldenrod. 



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

 rate, sliort-stalked ; ra/-.. short, don.se, leafv, erect; inrol. scalis obtuse. — la 

 wood.s .-ind dry hills, Can., N., Mid. ^ W. "States. A species remarkably dis- 

 tinguished among the solidagos by having white ravs. Stem generally "^i in ph', 

 2t liigh, a little hairy. Leaves hairy on lioih sides, "mostlv entire, gradually re- 

 duced in 8i/.c upwards. Flowers in numerous close, .short, axillary cluster^. 



