105 
Phragmites communis Trin. var. Berlandieri (Fournier) Fern. See Rhod. xxxiv, 211 
(1932). Reed-grass. 
Common in parts of the Peace-Athabaska Delta region where it grows 
on marshy shores with its culms overhanging the sluggish streams. Found 
fruiting in late August. 
Delta of Athabaska river. No. 1706. 
Schizachne purpurascens (Torr.) Swallen. Avena striata Michx. Bromelica striata 
(Michx.) Farwell. Melica purpurascens (Torr.) Hitchc. Purple Oats. 
Common in open poplar woods and prairies throughout the upland 
districts. Its tender leaves and culms add substantially to the forage during 
the summer months, and make up a large part of the naturally scant feed in 
the open woods. In some parts of the prairies it becomes abundant and 
dominates the turf over local areas, thus being one of the more important 
range grasses. Young flowers are formed the last third of June or early in 
July, and fruits in the latter part of July and August. 
Near Heart (Raup) lake, No. 1592; Pine Lake district, Nos. 1595, 
1597, 1598; Peace point, No. 1596; base of eastern slope of Caribou moun- 
tains, Nos. 1593, 1594. 
Agropyron Smithii Rydib,, var. molle (Scribn. and Smith) Jones. 
Apparently rare in Wood Buffalo park, and collected only on drier 
parts of the Peace Point prairie. In flower July 17. 
Peace point, No. 1822. 
A. trachycaulum (Link) Malte var. typicum Fern. A. tenerum Vasey. See Rhod. 
xxxv. 161-82 (1933) and xxxvi, 417 (1934) for treatment of this and the following. 
Slender Wheat-grass, Western Rye-grass. 
A common grass of open woods, semi-open prairies, and the drier parts 
of meadow sloughs throughout the region. It supplies excellent forage in 
considerable quantities. Found in early flowering stages from the middle 
to the last of July, and in fruit during the third week in August. 
East shore of lake Mamawi, Nos. 1818, 1819; Government Hay Camp 
district, Slave river, Nos. 1810, 1811; near Heart (Raup) lake, No. 1812; 
Round lake, about 18 miles south of Pine lake, No. 1817; Peace point, 
Nos. 1814, 1815, 1816, 1821; sink-hole 16 miles east of Moose lake, No. 
1813; Moose (Eight) Lake district, Nos. 1808, 1809; Indian graveyard, 
Peace river, No. 1820; base of eastern slope of Caribou mountains, No. 
1823. 
A. trachycaulum (Link) Malte var. unilaterale (Vasey) Malte. A. Richardsonii 
(Trin.) Schrad. 
Common on upland semi-open prairies and in the drier parts of meadow 
sloughs. Young spikelets just forming during the third week in July, and 
flowering during the middle part of August. 
Government Hay Camp district, Slave river, Nos. 1797, 1798; near 
Heart (Raup) lake, No. 1799; Moose (Eight) Lake district, No. 1796; 
Peace point, Nos. 1800, 1801; base of eastern slope of Caribou mountains, 
No. 1805. 
