156 COMPOSITyE. 



s 

 Dry soils. Penn. to Flor. W. to Miss. Sept. '2|..—S^t«i 2 feet high, hair) j 

 especially near the base, branching towards the summit. Heads composed cf 

 four clusters, each 4-flowered, with the involucre 9 — 10-leaved. Corolla purple. 



Carolinian Elephant' s-foot. 



IT. EuPATORiACEiE. Style of the perfect flowers cylindrical ; its 

 branches long and clavate, with a papillose surface on the outside 

 near the end. 



3. SCLEROLEPIS. Cass.— Sclerolepis. 



(.From the Greek aK\T)pos, liard, and Xsmj , a scale ; in allusion to the scales ol 

 the pappas.) 



Heads many-flowered. Involucre with the scales in two 

 series, linear and equal. Receptacle naked. Corolla tubulai", 

 smooth, 5-toothed, the throat scarcely distinct from the tube. 

 Style branching, exsert, cylindric-clavate. Achenia 5 -angled. 

 Pappus of 5 somewhat corneous short oval and obtuse scales 

 in one row. 



S. verticillata Cass. D.C. Sparganophoriis verticiUatus Mich. 

 In shallow water. N. J. to Flor. Aug., Sept. %..—Slem 1 — 2 feet high, 

 simple, a little pubescent at the top. Leaves linear, an inch long, 6 — 8 in a 

 whorl. Heads few, terminal, purple. Whorled Sclerolepis. 



4. KUHNIA. Linn.— KvAimdL. 

 (In honor of Dr. Adam Kuhn, of Penn.) 



Heads many-flowered. Scales of the involucre imbricated in 

 two or three series. Receptacle naked. Corolla with the limb 

 not distinct from the tube. Achenia elongated, sessile or stiped. 

 Pappus in a single series, plumose. 



1. K. eupatm-iaides Linn.: stem herbaceous; leaves broad-laftceolate, 

 serrate ; corymbs paniculate, terminal, few-flowered. 



Shady woods. N. J. and Penn. to Flor. Aug., Sept. %.-~Stem 2—3 feet 

 high, slender, somewhat branched. Flowers whitish. Res-embles an Eupatorium. 



Hempv)eed-like Kuhnia. 



2.K.pa7iiculata Cass.: stem herbaceous ; leaves linear or linear-lanceolate, 

 entire, younger ones with the margin revolute ; panicle corymbose, spread- 

 ing, many-flowered. {D. C.) K. Critonia Willd. K. cupatorioides var. gra- 

 cilis Torr. d^ Gr. 



Mountains. Penn. to Ala. Aug., Sept. %. — Stem 2 — 3 feet high, slender, 

 often dark purple. Heads in a large panicle, consisting of many corymboj>« 

 clusters. Flowers pale yellow. Panicled Kuhnia. 



5. LIATRIS. 5'cAre*.— Liatris. 

 (Origin of the name unknown.) 



Heads few, many-flowered. Involucre with few or liumerous 

 imbricate scales. Receptacle naked. Corolla tubular, 5-lobed ; 

 the lobes elongated. Style with the branches much exserted. 



