326 _ DESCRIPTIONS OF NEW SPECIES 



Euthamia tenuifolia; smooth, upper part of the stem angular; leaves narrow- 

 linear, mostly one-nerved, minutely punctate, somewhat rough on the margin ; 

 corymb diffuse, flowers solitary and sessile, in threes; discal florets five to six, 

 liguli about the length of the disk, ten to twelve. /3. microcephala; leaves very 

 slender, capituli generally pedicellate, smaller, y. gluiinosa; capituli turbi- 

 nate, pedicellate, resinously agglutinated. 



Hab. From New Jersey to East Florida. /3. Alabama, y. East Florida. 



Euthamia *occidentah; very smooth and virgately branched, the branches and 

 stem terete, or scarcely angled; flowers large, in simple, terminal, contracted 

 clusters; leaves lanceolate-linear, narrow, scabrous on the margin, mostly one- 

 nerved, or obscurely three-nerved; discal florets about fourteen to fifteen, radial 

 twenty-two or more. 



Hab. Banks of the Oi'egon and Wahlamet, and Lewis' River, in the Rocky Mountains; 

 chiefly on the sand and gravel bars, as well as islands. A tall, very smooth species, bearing very 

 few large flowers, chiefly in small, contracted, terminal clusters, and seldom, if ever, in threes, 

 rarely corymbose. Scales of the involucrum linear-lanceolate, acute. 



SOLIDAGO. (Linn.) 



* Racemes secund. 

 Solidago canadensis. 



Hab. On Wappatoo Island and the Banks of the Oregon and Wahlamet. 



Solidago procera. ^. * salicifolia; leaves linear-lanceolate, subserrate, smooth,, 

 scabrous on the margin, obsoletely three-nerved, flowers larger. 



Hab. With the above. 



Solidago serotina. 



Hab. With the above. Achenium smooth. 



Solidago *Pitcheri, (Nutt. in Acad. Nat. Sci.,, Vol. VII., p. 101.) Very 

 smooth and robust, leaves cuneate-elliptic, or cuneate-oblong, acute, sharply 

 serrate, three-nerved, above lanceolate; racemes secund, contracted, pyramidal 

 or corymbose; scales of the involucrum linear-lanceolate, somewhat obtuse; 

 discal and radial florets about ten each ; the liguli shorter than the disk ; ache- 

 nium pubescent. 



Hab. On the banks of the Oregon and Wahlamet; in Arkan§a, (Pitcher;) also near Salem, N.. 



