533 



Bromus kalmii Gray, Man. ed. i, 600 (1848). 



Lead City, altitude 1,600 m., July 4; Rocliford, altitude 1,700 iii,, .Inly 12; Hot 

 Springs, altitude 1,100 m., August 8 (No. 1165). 



Bromus ciliatiis L. Sp. PL i, 76 (17.").'!). 



Rare: Rocliford, altitude 1,700 ni., July 12 (No. 1166). 



Bromus pumpellianus Scribner, Bull. Torr. Club, xv, 9 (1888). 



Hillsides: Kuukels, altitude 1,300 m., June 30; Rochford, altitude 1,700 ni., July 12; 

 Custer, altitude 1, 700 m., July 16 (No. 1167). 



Agropyron repens glaucum (Desf. ) Scribner, Mem. Torr. Club, v. 57 (181)4) ; Triti- 

 cnm tjluucum Desf. Tabl. Bot. Mus. 16 (1804). 



Hills below Deadwood, altitude 1,500 m., July 5 (No. 1168). 



Agropyron violaceum majus Yasey, Contr. Nat. Herb, i, 280 (1893). 



The.se specimens seem to belong to this variety, which, however, I do not think is 

 a variety of A. violaceum. Professor Scribner regards them as a form of A. repens, 

 which they resemble very much. I should take them for a form of that species if it 

 were not for the fact that I could not find any creeping rootstock. They were grow- 

 ing in clumps in the manner of A. tenerum. Deadwood, altitiule 1,500 m., July 5 

 (No. 1170). A form of the same, with ,awn8 over 1 cm. long, was collected at Rocli- 

 ford, altitude 1,700 m., July 12 (No. 1171). 



Agropyrou tenerum Vasey, Bot. Gaz. x, 258 (1885). 



Deadwood, altitude 1,500 m., July 5 (No. 1169). 



Agropyron caninum (L.) Roem. »& Scliult. Syst. Veg. ii, 756 (1817); Trtticiim 

 annnum L. Sp, PI. i, 86 (1753). 



Common: Lead City, altitude 1,600 m., July 6; Custer, altitude 1,700 m., July 16 

 and August 16; Hot Springs, altitude 1,100 m., August 3 (No. 1172). 



Elymus canadensis L. Sp. PI. 1, 83 (1753). 



Along Fall River: Hot Springs, altitude 1,050 m., August (No. 1173). 



Elymus canadensis glaucifolius (Willd.) Torr. Fl. U. S. i, 137 (1824); Eliimus 

 (jhiucifoUus Willd. Enum. 131 (1809). 



Hot Springs, altitude 1,050 m., August 9 (No. 1174). 



Elymus virginicus L. Sp. PI. i, 84 (1753), var. 



This is the same as No. 1553 of my collection from the Sand Hills of central Nebraska. 

 Hot Springs, August 9 (No. 1175). 



Elymus striatus AVilld. Sp. PI. i, 470 (1797). 



Rare, with the preceding three. Hot Springs, August 9 (No. 1176). 



Elymus elymoides (Raf.) Swezey, Cat. Nebr. PL 15 (1891) ; Silaition elijmoidcs Raf. 

 Journ. I'liys. Ixxxix, 103 (1819). 



Rare, on dry prairie: Hot Si>rings, altitude 1,100 m., .Tune 13 and August 9 

 (No, 1177.) 



Elymus dasystachys Trin. ; Ledel). Fl. Alt. i, 120 (1831). 



The specimens in the collection have much shorter spikes and larger and more 

 hairy spikelets than in the Siberian form. lOlk Canyon, near Runkels, altitude 

 1,300 m., .liine 30 (No. 1178). 



Hordeum jubatum L. S]). PL i, 85 (1753). 

 Custer, altitude 1,650 ni., July 16 (No. 1179). 



CONIFERiE. 



Juniperus communis sibirica (Buig.sd.); Jiniipenia sibirica Biirgsd. Anl. Erz. 

 Anpll. Holzart. ii, 272 (1787); ./. commHuU alpina Gaud. Fl. Helv. vi, 301 (1830). 



U'lie name of this plant has been changed lately by botanists in this country to 

 J. vttiiii Willd.' Willdenow cites J. sibirica Burgsd. as a synonym. I have not been 



iSp. PL iv, 854 (18U6). 



