149 [ 237 ] 



tlie leaves ; racemes oblong, 15 — IS flowered ; flowers (large, bright 

 purple) erect, spreading ; calyx ttibiilar ; teeth subulate, one third the 

 iengih of the tube; vexilUmi about as long as the wings; legumes 

 coriact-ous, triangtjiar, concave on the dorsal suture, abruptly acumi- 

 nate, glabro\is ; the sutures thickened. Hills near Council Blutis, on 

 the Upper St. Peter's, &c. ; May 17. 



PhcBa elvngata^ (titiok.?) l.eaves linear cunieform ; calix villous; leg- 

 iKue one inch long, curved; upper suture thickened; legumes 3 — 4 

 lines long, 2 lines broad, about six seeded, canescenfly hirsute, trans- 

 versely veined, concave on the back, the ventral suture tumid. This 

 species (which I doubthilly refer to l^.elongatn of Hooker) appears to 

 be distinct from any other Plittd described in the F^'lora oi North 

 America. It is allied to P. pectinata^ (Hook.,) but differs in its ar- 

 ticulated leaflets, larger flowers, &c. 



Plicba ccaspitosa^ (Nnlt.) Hii^h prairies near Devil's lake — sitie fl. 



Homalobus multiflorits, (Torr. and Gr.) Naked hills of Missouri and 

 Shayen rivers; July 2\—Ji. and//-. Stems numerous, 1^ foot high ; 

 legume 5 — G seeded. 



Desniudiiim Canadense, (D. C.) Borders of rivers and woods, St. Peter's 

 river, &,c. ; Aua^ust 3. 



Lupuius pitsillus, (Nuit.) About the habitations of the prairie mar mot ^ 

 near White river, Upper Missouri; June ^—Ji. and//-. 



Schra.ii.lda uficiuaia, (Willd.) Hills on the Missouri ; June 30. 



Darli It ({to/da brachyloba, var. frlandulom^ (Torr. and Gr.) Gravelly banks 

 of Spirit lake ; September 3U^^ and />. 



Cercis Canadensis (Linn,) Woods, Missouri ; common ; April 4, 



R0SACE/-E. 



Cerasus Virg-iniana, (D. 0.) Banks of the Missouri ; .April 25. 

 ^Cerasus puinila, (Michx.) Arid liills of the Upper Missouri; June 19. 

 PotetUilla argeulea^ (Linn.) Prairie swamps, Shayen oju river, &,c. ; 



July 15. 

 PotetitiUa ars^ufa, (Pursh.) Fertile prairies near Wamdushka and Shay- 



en-oju rivers ; July 18. 

 Poteiitilla paradoxUf (Niitt.) Margin of Devil's lake ; July 26. The 



large appendage to the ba?e of the seed is of a spongy texture, and 



contains no starch. I found it in all the specimens of this collection, 



but fear, neverihsless, the identity of this species and P. supina. 

 Potentdln Peunsi/loanica, var. bijjinnatijida, (Torr. and Gr.) No label 



with tlie specim^^ns 

 Fragaria Virginiana, (\\\\\.) Hills of the Upper Missouri ; June 19. 

 Chain cr.rliodos crecia, (Bunge.) Dry hills about Devil's lake; July 29 — 



/. and/r. 

 Geinn sirictiim, (Ait.) Borders of woods, Devil's lake; July 24. 

 Rosa b/.auda, (Xa.l) Perhaps R. stricta. Stem with reddish prickles. 



Lieaflets 7 — 9 ; the under surface and the petioles pubescent. Devil's 



lake ; August I. 

 Rosa Incida, (Khrh.) Banks of the Upper Missouri ; May 25. 

 Cralccavs coccincvs, (var. Torr, and Gr.) Banks of the Upper Missouri ; 



April 25. 

 Amelanchier Canadensis^ var. oblongifolia, (Torr. and Gr.) Banks of the 



Upper Missouri and its tributaries: May lO,Jl.j July 4,/r. 



