SSg: LXXV. COMPOSITM. fe'cLiDACuy. 



17. BOLTONIA. 



In honor of J. B. Bolton, author of" Ferns of Great Britain," &c., 1788. 



Heads many-flowered ; ray flowers $ , in a single scries, those of 

 the disk tubular. $ ; scales in 2 series, appressed, with membranous 

 margins ; receptacle conic, punctate ; achenia flat, 2 or 3-winged ; 

 pappus of minute setae, 2 (—4) of them usually lengthened into awn». 

 — '4 Glabrous, branching herbs. Lvs. lanceolate, entire, sessile. Hds. 

 loosely corymbose. Rays purplish-ivhiie. 



1. B. 6LASTIF0LIA. L'Hcr. 



?/i'5. lanceolate and oblanceolate, acute, tapering to the narrow base, lowep 

 ones sometimes serrate ; hds. on short peduncles, in a somewhat contracted 

 corymb y branckcs lealy ; ach. obcordate, conspicuously winged, pubescent, with 

 2 awns nearly its own length. — Prairies and banks c( streams. 111. Jcntieyt 

 Penn. to N. Car. This plant resembles an Erigeron, but is very smooth, 3— 6f 

 high. Stem leaves 2 — 4' by \ — ?'; branch leaves of the same form but -smaller. 

 Rays about 30, expanding 9". Jl. Aug. 



3. B. ASTERolDEs. L'Her. (B. diffusa. Ell. 7 Chrysanthemum Caroli- 



nian'um. Walt.') — Livs. linear-lanceolate, obtuse or acute, all entire, nar- 

 rowed to the ijase, those of the branches subulate, minute ; hds. on long pedun- 

 cles, in a diffuse and loosely paniculate corymb; branches and branchlets yjsfy 

 slender and nearly naked ; «cA. ovate or somewhat obcordate, smooth, 2-awned.*- 

 Prairies, &c. la.! II!. to Ga. and La. A very smooth plant, between an Astes 

 and an Erigeron, with a diffusely branched summit, 3— 7f high. Leaves 2—5/ 

 or 6' by i — i', reduced upwards to ."ietaceous bracts 1 — 2" in length. Heads 

 terminating the filiform branchlets. Rays expanding 7". Aug. Sept. 

 Section 3. Heatlsli-atliate. Rays yellow. 

 18. SOLI DA GO. 

 Lat. soHdari, to unite ; from the vulnera.T qualities of the piants. 



Flowers of the ray about 5, 9 > remote, of the disk 5 ; involucre ob- 

 long, imbricate, with appressed scales ; receptacle punctate, narrow ; 

 pappus simple, capillary, scabrous. — '^ Herbs, very abundant in the 

 U S. Stem erect, branching near the top. Lvs. alternate. Hds. small, 

 with 1 — 15 {very rarely 0) small rays. JFls. yellow {one species whitish), 

 expoMcling hi the autumnal months. 

 § 1, Stems much branched, conjmbose. Leaves all linear, entire, sessile. 



1. S. LANCEOLATA. Ait. Grass-leavcd Goldenrod. 



St. angular, hairy, much branched; Irs. linear-lanceolate, entire, 3-veined, 

 rough-margined, slightly hispid on the veins beneath ; corymbs terminal, fasti- 

 giate. — Inv\roods an* meadows, Can. and U. S. Distinguished frommos; other 

 species by its flat-topped corymb. Stem 2 — 4f high, with numerous, verv lung 

 and narrow leaves, which are distinctly 3-veined and acutely pointed, srnailei 

 ones often fascicled in the axils. Flowers in terminal, crowded clusters. In- 

 volucre ovate. The whole plant is fragrant. Sept. 



2. S. TKNUIFOLIA. Ph. 



St. angular, smooth, with many fastigiate branches ; lvs. linear, spread- 



^Sf, obscurely 3-veined, scabrous on the margin, the axils leafy; corymb ter- 



•'1, consisting of clustered heads; rays about 10, scarcely as long as the disk. 



i^, -lows near the sea-coRstjJVIass. ! to La. Also Wis. Dr. Laphom! Avery 



min^ "ecies, distinguished from S. lanceolata by the extreme narrowness of 



Mea. "^d the thinner, more open corymb, which is often reduced to a few 



slender sp -^aves bear tufts of smaller ones in their axils, and are punctate 



the leaves a. ^, Aug. — Oct. 



^^^•^h^' inous dot. "-orymbose above. Lower leaves lanceolate, petiolate. 



^^^ ^ <if m simple, ' '■i-kafcd Goldenrod. 

 § 2. fetem t ' ^ij.j. . ^„^ ©vate-eblong, rough with Biinute hairs 



Ha: 



S*. stout, roatg 





