BOTANICAL IH-POKT. 



This is the "Wild Sage" of the Upper Missouri (al 

 stone) and the Yellowstone River, and of the Laramie 

 occur, west of the Rocky Mountains, as Torrey and 

 Nuttall (I. c.) must have confounded it with other speci 

 "still more abundant on the barren plains of the Coin 

 6 to 8 or 12 feet high. 



Artemisia tridentata, Nuttall in Trans. Amer. Phi 

 and Gray, Fl 2, p. 418.— Trunk, bark, and wood very 8 

 but trunk often larger, and usually even more twisted a 

 short and stunted branches, which are repeatedly divi 

 branchlets: ultimate annual branchlcts fascicled, erect, . 



ivery, 



naked 



iculate spikes, composed of sessile or usually pedunculate spike 



the branches, and often fascicled on short or stunted sterile brai 

 shaped, 1J-2 lines wide at the obtuse tridentate or trilobed en 

 a more or less distinct petiole; usually 3-G, rarely S, lines lon< 

 spersed with short and narrow, undivided, cuneate or spatulate 

 of flowers nan*ow, obovoid, nearly li lines long, not much m 

 with short and obtuse, canescent, exterior scales, and longer, s 

 ciliate on the sides. Flowers in some specimens :>, in others ( 

 all perfect, scarcely more than 1 line long; ovary quite gland 

 of turpentine. 



This is the "Wild Sage" of Utah, and, perhaps, of the wl 

 Rocky Mountains, where it seems to supplant the more eastern 

 first described it, calls it a shrub about a foot high, and as 

 mountains of Colorado; but in Utah it is the largest and i 

 usually 2-4 feet high, rarely attaining a height of 6 feet, and 

 with trunks of 3-6 inches diameter; sometimes the smallest b 

 as thick as the tallest ones, short and chunky. East of the mo 

 A. cana, it ever remains an inconspicuous shrub, lost among the 

 Near Camp Floyd, specimens were collected bearing white toi 

 the size of a pea, or larger, undoubtedly galls caused by the sti 

 have been observed on this species in Colorado. 



The other species of Artemisia collected by the expediti 

 Michx., at Bridger's Pass; A. Ludoviciana, Nutt., at Sweet watei 

 Prairie, etc.; A. dracunculoides, Pursh, on the Sweetwater; and. 

 Upper Sweetwater Eiver. CWS0YfQmkCES L 



JSarcobatus vermiculatus, Torrey in Emory's Report (1848) j>. UO. Bah. (;) 

 vermiculata, Hooker, Flor. Bor.-Am. 2,p. 128 (1840); Sar. "'.;.,'" '" 



Pr. MaxlmU. Trav. Engl al p. 518 (« Torrey), Senhrt in IM. /«/<«,;, 1 *44, j, ,,.., aw, 

 tab., Lindley in Hooker, Lond. Joum. Bot. IV, p. 1 (1845); rremontia verm.culans, 



