S0LIDA60. COMPOSITE. 225 



or narrowly lanceolate (the latter S. glabra, Desf.! cat. ; DC. ! I. c), very 

 coarsely, or finely and sparsely serrate (the latter S. serotina, Hook.! I. c. 

 as to spec, from Oregon, &c.), sometimes with the lateral nerves less distinct 

 (S. gigantea, Willd. ! I. c.) ; the panicle large and crowded, or sometimes 

 loose and elongated. 



j3. leaves varying from lanceolate to oval-lanceolate, narrowed at the base ; 

 the lateral nerves often indistinct; panicle dense, thyrsoid or fastigiate.—S. 

 gigantea /3. Hook. ! I. c. S. Pitcheri, Nutt. .' in jour. acad. Philad. 7. p. 

 101, Sf in trans. Amer. phil. sac. I. c. 



Fields and borders of thickets, Canada ! and Saskatchawan ! to Alabama! 

 and west to Oregon! Common in the Northern and Western States. /3. 

 Arkansas, (Dr. AMer /) Kentucky! &c., to Saskatchawan! and Oregon I 

 Aug.-Sept. — Distinguished by its perfectly smooth leaves as well as stem, 

 (the latter 3 to 7 feet high), and larger heads with more conspicuous rays 

 than any of its immediate allies. 



67. S. rupestris (Raf.): stem slender, often loosely branched above, 

 smooth, the branches and peduncles pubescent; leaves smooth and glabrous, 

 linear-lanceolate, attenuate at both ends, entire or sparsely serrulate ; panicle 

 virgate ; heads small ; rays very short ; achenia pubescent. — Eaf. ! ann. 

 nat. (1820) ;5. 14. 



Cliffs of Kentucky River, Rajinesque! Dr. Short! and apparently com- 

 mon in Kentucky! Indiana! &c. Aug.-Sept. — Smooth like S. gigantea, 

 with the small heads and inconspicuous rays of S. Canadensis ; remarkable 

 for its nearly entire narrow leaves, somewhat resembling those of S. odora, 

 but triplinerved (the nerves whitish), and for the slender and often simple 

 racemose panicles which terminate the stem or loose branches. Stem 2-3 

 feet high. 



§ 3. Frutescent, branched, someivhat glutinous : leaves obscurely triplinerved, 

 veinless, entire: heads corymbose-pianiculate : involucre as in ^Yirgaurea, 

 few- {i-7-) flowered: rays 1-3. — Chrysoma, Nutt. {in jour. acad. Philad., 

 4' trans. Amer. phil. sac. excl. spec. 2 & 3.) 



A specimen of a plant very nearly allied to the following, from the Bahama 

 Islands, exists in Sir William Hooker's herbarium, chiefly differing in its smaller 

 and mostly 4-flowered heads, short rays, and more evidently triplinerved leaves, 

 which do not exliibit the beautiful reticulated stmcture of that species : it is very 

 probably the S. Domingensis, Spreng. This section is allied to the Maritimce on 

 the one hand, (and is composed of sea-side plants 1) and to Euthamia on the other. 



68- S. pauciflosculosa (Michx.): glabrous or glaucous, the paniculate 

 branchlets somewhat viscid ; leaves thick, lanceolate, oblanceolate, or linear, 

 obtuse, entire, narrowed at the base, sessile; branches of the compound pani- 

 cle erect; scales of the 5-7-flowered involucre narrowly oblong, carinate ; 

 rays large ; achenia silky-villous. — Michx. ! fl. 2. p. 116. Chrysoma solida- 

 ginoides, Nutt. ! in jour. acad. Philad. 7. p. 67. 



In sand on the coast of Carolina (Michaux!) Georgia, Mr. Croom! 

 Florida, Mr. Ware! Dr. Leavemvorth! Dr. Ingalls! Dr. Chapman! and 

 Alabama, Mr. A. Bigeloiu ! — Stems woody, much branched, 1-3 feet high. 

 Leaves 1-2 inches long, 1-nerved, or often obscurely triplinerved, veinless, 

 appearing reticulate-punctate, or rather cancellate, by transmitted light. 

 Heads rather large, somewhat clustered. Rays large, deep yellow. Pappus 

 unequal, turning somewhat brownish. — This remarkable plant was doubt- 

 less unknown to Pursh, who has probably at a mere venture given it as a 

 native of Virginia. 



VOL. II. — 29 



