Upham.] 
152 
[May 21, 
A vena pratensis, L., var. Americana, Scribner, common from 
Portage la Prairie westward. 
Dantkonia intermedia, Vasey, common from the Red river to 
the sources of the Qu’Appelle ; also found at the east in Anticosti 
and Gaspe ; extending west to Vancouver island. 
Bouteloua oligostachya, Torr., the most valuable and widely 
spread of the “ Buffalo Grasses,” observed as the main species of 
grass on large tracts of the prairie between Devil’s lake and the 
Souris river ; described by V asey and Havard as the commonest 
species on the great plains, surpassing all others in its importance 
as pasturage for stock of all kinds, even in winter, when its dried 
tufts or bunches still retain their nutritive quality. 
Phragmites communis, Trin., abundant, often ten to fifteen feet 
high, in the edges of lakes. A prostrate stem, twenty feet long, 
rooting at the joints, was observed at Red lake, Minnesota. The 
large size, broad leaves, and beautiful plumose panicles of this spe- 
cies rival the nearly allied Arundo Donax of the Old World, from 
which, according to Lindley and Moore’s “ Treasury of Botany,” the 
Homeric heroes made their arrows, while the tent of Achilles was 
thatched with its leaves. 
Kceleria cristata, Pers., very abundant on the dryer portions of 
the country, affording good pasturage ; estimated by Lieberg as 
constituting fully half of the entire growth of grass along the 
Northern Pacific railroad between the James and Yellowstone 
rivers. 
Distichlis maritima, Raf., var. stricta, Thurber, very abundant 
on the borders of saline and alkaline marshes. 
Poa tenuifolia, Nutt., one of the much prized “Bunch Grasses,” 
common from Brandon westward to the Rocky Mountains, and 
the most important pasture grass of British Columbia, Vancouver 
island, and southward. 
Poa nemoralis, L., forming much of the pasturage northward. 
Poa serotina, Ehrh., plentiful in swampy places on lakes and 
rivers. 
Poa pratensis, L., the famous “Blue Grass” of Kentucky, in- 
digenous and abundant, rapidly taking the place of other species 
westward, and destined, according to Macoun, to be the chief 
pasture grass of this region. 
Glyceria distans, Wahl., var. airoides, Vasey (Puccinellia, Pari.) , 
abundant in saline marshes from Winnipeg westward. 
