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Show [ 243] 80 ( Znpania) c:mrijolia (Torr. in James' :'"plants, only known before from Dr. Jamc!<'s collection;) Co·cocaqws pan•ijoli~<s, Nutt.; Eriogontmt Jllll"l"ifoliwn and ctcspiloswn, Nutt.; Shcphrrdia argenlt•rtt Nqtt., and Gcrcmitwt J·hmo11tii, n new pccics (n 'ar the Hetl Buttes), were found in this part of thcjourn y. Jn salin' ~oils, on the Upper Platte, n<•ar tltc mouth of the wcct Water, were collected ~cveral mtcr ·sting C'IIENOPODtA <:r:.+:, one of which wa fir~t discovered by Or. Jame , in Long's E'\pcdition; and although it \\as cOlt. idcrcd as a new genu«, I did not describe it, owing to the want of the ripe fruit. It is the plant doubtfully referred by 1 looker, in his F'iora. llorcali Americana, to Datis. lJc had 'Ct'n the male !lowers only. A · it is C<'r:ainly a ne'v genus, l have dedicat ·d it to the e'>-cellcnt commander of the expedition, a. a well-mcritcJ. compliment for the scrvic she has rendered North American Botany. The Sweet \Vater valley is a . andy plain, about one hundred and twenty mile~ long, anJ. generally about ftve milt' broad; bounucu by range:-; of graniti<' mountains, between which, the 'Valley formation con i ts, ncar the Devil' gat , of a grayi h micaccou 'iatu.lstone, with u1arl and white clay. At the cncamp1nent of '\ngu:t 5th-6th, thNe occurred a fine white argillac C:'Ous andstone, a coars • sand ·tone or pndd ing tone, and a white calcareous sandstone. A ~ · w miles to the west of that posit ion, Lieut. F. reached a point where the . and tone restc<l immediately upon tho granite, which thcnccf'onvard, along his line of route, alternated wid1 a eompact mica sbtc. Along the Sweet ' Vater, many interesting plauts were collccteu, as may be seen by an e~:tmjnation of the catalogue; l would, howC"ver, mention the curiow m1tothcm .Nrtttalii, Tol'r. and Gr.; Ertrolia lcmala, Mocq. tDiotis lanata, Pttrsh ), which ~ecms to be distinct from E. Cl'raloidcs; 'J'ItcrmoJISi~ monlcma, Nutt. ; Gilia pnlchclla, Doug!. ; Senecio SJIItl'lioicles, Torr. and Gr., an w peci · , anll four or five species of wild currant:' ( Ribcs irrixuum, Doug!., &c.) Ncar the mouth of the Sweet \Vater was found the Plantago criophora, Torr., a pecics first described in my Ur. James's Rocky l\lountain Plants. On the upper part, and ncar the dividing 1 idgc, were collccteu sev raJ species of Castilleja; J>entstwwn micnmtlw, Nutt.; several Gwtians; the pr tty .1ttle .llnclrosacc occitle7tlalis, Nutt. ; .Solidago inccow, Ton. anu Gr.; and t'.VO specie · of Erio~~'o- '' tm, one of which was new. 0 .on the 8th .of August, the exploring party cro sed the dividin;; riuge or pa'l', and found the sod of the platn · at the foot of' the mountains on tl1e we tern side to be unt!y. From Laramie'! fork to .this point, difTcrcnt pccics of Artcmisi:l were the prevailing and characteristic plant ; ~ccupywg the p.lacc o.f the gras es, and filling the air with the odor of camphor and turpen~ tme .. Along L1ttle andy, n tnbutary of the Colorado of the vVc:t, were collected a ne1.,r spce1es of Plwca ( P. c/igilala), and Pamrzssictfimbrialtt. On the morning of the lOth of Augu~t, th y entered the uefilcs of the Wind River mountains a ,pur of the Rocky Mountains or Northern Andes, and among which, they spent about eight days: On t.l1e l1ordcrs of a lalcc, cmbosomed in one of the defi les, were collected Sedwn Uh odiola, DU. (~lu~h ha~ been :ou~d.llefor~, .south of Kotzebue's Sound, only by Dr. James); Scnerio hydiophtl tcs, Nut~. ; J ac~mwm tcltg1:10swn; Bctultt glmrdulosa, and B. occidental is, lJook.; Eleagntts a~gentca, and S!tcphenlw Cmuulotsrs. Some of the higher peaks of the Wind River mountains nse l ,000 feet, above the lit~its of perpetual snow. Licul. Fremont, attended by four of hi<J men, ascended one of the loftJCst peaks on the 15th of August. On this he found the snow line 12,5?0 feet ab?ve the level of the sea. The ''cgetation of the mountains is truly Alpine, cmbracmg a .considerable number of species common to both hcmispl1cres, as w 11 as some that are p. ecuh.a .r to . North A. meric. a · Of the f,o rmer, L t' eu t . s..:., remont collected Phlewn alpittwn; Oxyr:a l'cnijonnts; Veromca nlpma; se,·eral species of 'alix ; Gm·ex ulrata; C. panicra; and im-mH cdtately below the line of perpetu a 1 conge1 a t1' 011, .<....,•,· t cne actuth·s and Polemonittm •rerulcu'm t3 o?k. AI_Do~g the alpine plants peculiar to the western hemisphere, there were found Ore-oplnla myrtifolta Nutt · lJq 'I · 1 1' }J · · J . ' ·' ~ ltt cgw ClC1'1t e", orr.; cdtcttlcwu swTccla llcntlt. · Pulmo1uu·ia ciliatn ame. s ·' Stle ~t e D 1· I" 11 k · · ' ' ' WlllllO?t£ tl, oo · ; .Me?tz~esu£ tmpelrijonllis, Potcntilla gracilis Doug! · several spec1es of Pmtzs · P·rase · , · 11 k 1 ' · ' S . , .. ' Ht specwsa, oo ·; 'Jodccathcon dentatum, llook. · Phlox muscoides Nutt · "C1UCto .f remontn n sp T . d G. f, . ' ' ' · 1 1 . ' · ., Oir. an I· ; our or ftve •11sters, and Vucciniwn myrlilloidcs Mx. · the ast seven or e1ght very ne , tl 1. L ' ' ' at 1e snow me. ower down the mountain were founJ. Jlnticcc ; 1 r 243 J l'fll~tr~li/illur, \ ' altl ; St'Jli'C'ir) t rian~lllt• ris , fl ook. ; S. ~tciJiltfl/us, DC.; .11ttn·orhyltc!tus tro.rimoidcs, Torr. and Gr.; llrlirmthrllrr wtiflnm, Torr. and Gr., ancl U nosyris risridijlom, lloolc. The c'peditio11 left the Wind H.n cr mountain" about the 18th of Augu ·t, return ing by th•~ ~arne route n., that by which it a-.ccnded, C\.cort that it continued it · eour~e through the who!(• length of the !.ower flatte, arriving at its junction with the Mis ·ouri on the ht of October. As the pla.nb of l.ieut. Fremont were under examination while tlte last part of the Flora of North America wa. in the pre!->s, nearly all the new mntlcr relating to the Composit:l.! was inserted in that work. Dcscriptious of a few of the new pccies were necessarily omitted owincr I 0 to the R<·port of the E::cpedition baring heen called for· by Congrc 3 before J could finish the necc!''lary analy,;cs and comparison . The c, however, will be in~crtcu in the succe sire nuo1- bcr~ of the work to which l ha,·e ju t alluded. .JOIJN TORREY. Ntn YoRK, Jl.lnrch, 1843. • |