to the Rocky Mountains. 2 1 1 



V. altissima, which I have never seen, unless it be a variety 

 of V. praealta. 



206. V. Baldwini, caule molliter pubescente; foliis ovato- 

 lanceolatis, acute serratis, supra scabris, subtus pubescenti- 

 bus ; corymbo difluso, subfastigiato ; squamis involucri lan- 

 ceolatis, squarroso-reflexis, scabro-pubeseentibus. 



Hab. On the Missouri, above St. Louis, and on the lower 

 part of the Ohio. Dr. Baldwin. 



Obs. A tall species, with the flowers numerous, resembling 

 in size those of V T . praealta. 



207. Chrvsocoma gkaveolens, Nutt. gen. ii. p. 136. 

 Spreng. syst. iii. p. 425. C. dracunculoides. Pursh Jl. ii. p. 

 517. Station not recorded. 



20&. Cacalia atkiplicifolia, L. Purshfl. ii. p. 518. 

 On the Missouri ? 



209. Hymenopappus tenuifolius, Pursh fl. ii. p. 742. 

 Nutl. gen. ii. p. 139. Valley of the Loup Fork. 



210. Artemisia ludoviciana, Nuti. gen. ii. p. 143. 

 Arid plains of the Platte, with all the following of Nuttall : 



A. SERKATA, COLUMBIENSIS, LONGIFOLIA, CERNUA, and CANA- 

 DENSIS. 



Obs. Besides the above six species, Dr. James found an- 

 other, which appears to be new, but the specimen is without 

 lower leaves, and cannot, therefore, be certainly determined. 

 Aktemisia FiLiFoi.iA, caule heibaceo ? ramoso ? foliis cane- 

 scenti-pubescentibus ; snpertoribus simplicibus, filiformibus, 

 et subpinnatifidis, semiteretibus ; floribus conglomeratis. 



211. Baccharis, foliis sessilibus oblongis basi cuneatis, 

 obtusiusculis, apicem versus remote denticulatis, vel uniden- 

 tatis, reticulato-venosis, glabris, subtus ramisque viscido-resi- 

 nosis ; floribus terminalibus, capitato-conglomeratis ; ramulis 

 angulatis. B. rupicola, H. B. and Kunth, syn. pi. cequin. ii. 

 p. 378. ? On the Canadian. 



Obs. This species much resembles B. sessiliflora, Michx. 

 (B. glomeruliflora, Ph.) The latter appears to differ chiefly 

 in its smooth leaves and branches. 



