COMPOSITAE. 



VOL. III. 



7. KUHNIA L. Sp. PI. Ed. 2, 1662. 1763. 



Perennial herbs, with alternate punctate resinous-dotted leaves, and discoid heads of 

 white or purplish flowers in terminal cymose corymbs. Involucre turbinate-campanulate, 

 its bracts striate, imbricated in several series, the outer shorter. Corolla regular, the tube 

 slender, the limb 5-lobed. Anthers obtuse and entire at the base, nearly or quite separate. 

 Style-branches slender, obtusish. Achenes lo-striate. Pappus a single row of numerous 

 ery plumose bristles. [Named for Dr. Adam Kuhn, of Philadelphia, a pupil of Linnaeus.] 



About 8 species, native of North America and Mexico. Type species: Kuhnia eupatorioides L. 

 Puberulent ; leaves sparingly dentate, or entire ; heads loosely clustered, 4"-s" high. 



1. K. eupatorioides. 

 Pubescent or tomentulose; leaves sharply serrate; heads densely clustered, 6"-8" high. 



2. K. glutinosa. 



i. Kuhnia eupatorioides L. False 

 Boneset. Fig. 4175. 



Kuhnia eupatorioides L. Sp. PI. Ed. 2, 1662. 1763. 



Eupatorium alternifolium Ard. Spec. Bot. 2 : 40. 

 pi. 20. 1764. 



Erect, puberulent and resinous, i-3 high, 

 branched above. Leaves lanceolate or linear- 

 lanceolate, acute or obtusish at the apex, nar- 

 rowed at the base, sparingly dentate, or entire, 

 the upper sessile, the lower usually short- 

 petioled ; heads several or numerous, pedun- 

 cled, 4"-5" high, loosely clustered ; outer bracts 

 of the involucre lanceolate or ovate-lanceo- 

 late, acuminate, the inner much longer, linear, 

 cuspidate ; pappus tawny, or sometimes nearly 

 white. 



In dry soil, New Jersey to Georgia, Ohio, Min- 

 nesota, West Virginia and Texas. Ascends to 

 3300 ft. in West Virginia. Aug.-Sept. 



2. Kuhnia glutinosa Ell. Prairie False Boneset. Fig. 4176. 



Kuhnia glutinosa Ell. Bot. S. C. & Ga. 2 : 292. 1821-24. 

 Kuhnia suaveolens Fresen. Ind. Sem. Francf. 1838. 

 Kuhnia eupatorioides var. corymbulosa T. & G. Fl. N. 

 A. 2: 78. 1841. 



Stouter and often taller than the preceding spe- 

 cies, corymbosely or paniculately branched, pubes- 

 cent or tomentulose, somewhat viscid. Leaves all 

 sessile, lanceolate to ovate-lanceolate, usually 

 sharply serrate with distinct teeth, veiny, i'-3' 

 long, 3"-io" wide, or those of the branches linear- 

 lanceolate and entire ; heads numerous, 6"-8" 

 high, densely clustered in the cymes, their pedun- 

 cles mostly short ; inner bracts of the involucre 

 lanceolate, acuminate; pappus tawny or brown. 



In dry soil, Illinois to North Dakota, Colorado, 

 Alabama and Texas. Perhaps a race of the preceding 

 species. Aug.-Oct. 



Kuhnia Hitchcockii A. Nelson, a little known 

 species of Kansas, differs by having very small linear 

 leaves, at least on the upper part of the plant. 



8. LACINARIA Hill, Veg. Syst. 4: 49->/. 46.' 1762. 



[LiATRis Schreb. Gen. PI. 542. 1791.] 



Erect perennial herbs, usually from a globular tuber, simple or little branched, with alter- 

 nate, entire, narrow i-5-nerved leaves, and spicate or racemose discoid heads of rose-purple 

 or white flowers. Involucre oblong, ovoid or subhemispheric, its bracts imbricated in several 

 series, the outer shorter. Receptacle flat, or slightly convex, naked. Corolla regular, its 



