102 
ALISMACEAE 
Sagittaria cuneata Sheldon. S. arifolia Nutt. Arrow-leaf, or Arrow-head. 
Occasional in the shallow ponds and slow streams in the upland dis- 
tricts, and common to similar situations in the lowlands. Sometimes found 
on mud flats where it has normal fleshy leaves, and at other times in deep 
water where its leaves are long and ribbon-like, reaching to the surface. 
Flowers in July and fruits in late August. 
Cree (Mamawi) creek, No. 1587; lower delta of Athabaska river, No. 
393; Murdock Creek district, Nos. 1589, 1591; sink-hole 16 miles east of 
Moose lake, No. 1590; Indian gravej^ard, Peace river. No. 1588 ; Sass creek, 
Russell, No. 24. 
GRAMINEAE 
Bromns ciliatus L. Brome-grass. 
Common, but apparently limited to prairie openings and open places 
along Peace river. Young spikelets collected July 17, and flowers August 1. 
Indian graveyard, Peace river, No. 1671; base of eastern slope of 
Caribou mountains, No. 1670. 
B. Pmnpellianus Sehribn. 
A common grass of dry prairies and ridges throughout the upland 
sections of the park. It becomes abundant in cabin clearings and 
everywhere serves as an important element in the natural forage. Young 
spikelets appear in the last week of June, and flowers during July. When 
in flower its large yellow anthers and purplish glumes and lemmas make 
a striking appearance. 
Fort Smith, No. 204; Pine Lake district, Nos. 1675, 1677; Peace point, 
Nos. 1673, 1676; Moose (Eight) Lake district, No. 1674; base of eastern 
slope of Caribou mountains, No, 1672. 
Festuca saximontana Rydb. Sheep’s Fescue. 
Occasional in the driest parts of the upland prairies, on dry sand ridges, 
and in the more sterile crevices on granite hills. Very young panicles formed 
in late June, flowers during July, and fruit in the middle part of August. 
East shore of lake Mamawi, No. 1669; near Heart (Raup) lake, No. 
1667; Fort Smith, No, 168; base of eastern slope of Caribou mountains, 
No. 1668. 
Glyceria striata (Lam.) Hitchc. G. nervata (Willd.) Trin. of auth. See Proc. Biol. 
Soc. Wash., xli, 157 (1928), and Rhod. xxxi, 47 (1929). 
Apparently rare in the park area and confined to the rich woods in 
the upper Athabaska delta. In fruit in mid-August. 
Reed portage, upper Embarras river, No. 1620. 
G. grandis Wats. Panicularia grandis Nash. Reed Meadow-grass. 
Common in wet meadows along upper Slave river. It is usually found 
in the wetter, central parts of the sloughs, where it often forms pure stands, 
readily distinguished in early August by the mass of purple made by its 
large panicles. It has good forage value, but is usually so local and in- 
