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accessible that it becomes of little importance. Young spikelets are formed 
early in July, and fruit in late July and the first half of August. 
Murdock Creek district, No. 1616; Government Hay Camp district, 
Slave river, No. 1610. 
G. pulchella (Nash) K.Sch. Panicularia pulchella Nash. 
Common in sloughs and wet meadows, mainly in the upland sections of 
the park. Flowering and fruiting similar to the last. 
Lower delta of Athabaska river, No. 200; Government Hay Camp 
district, Slave river, No. 1611; Peace point, No. 1617; Moose (Eight) Lake 
district, Nos. 1614, 1615; base of eastern slope of Caribou mountains, Nos. 
1612, 1613; along Little Buffalo river, Russell , No. 44. 
G. borealis Nash. (Batcheldor). Panicularia borealis Nash. Northern Manna-grass. 
Occasional in wet sloughs throughout the region. In flower in mid- 
July and early August, and in fruit during the third week in August. 
Lower delta of Athabaska river, No. 202; Government Hay Camp, 
Slave river No. 1618; sink-hole 16 miles east of Moose lake, No. 1619. 
Puccinellia Nuttalliana (Nutt.) Wats, and Coult. P. airoides (Schultes) Hitchc. 
Alkali-grass. 
Found only in the Athabaska River delta and at the margins of saline 
flats on the Salt Plains. In the latter situation it is a dominant species 
in continuous bands around the barren flats, and is said to be very attractive 
to grazing stock. Young flowers collected July 11, and fruit August 19. 
Lower delta of Athabaska river, No. 199; near Heart (Raup) lake, 
No. 1784. 
Fluminia festucacea (Willd.) Hitchc. Scolochloa jestucacea (Willd.) Link. 
A common species in wet meadows and at lake margins throughout the 
area. It forms nearly pure stands in local areas, and occupies situations 
of widely varying degrees of wetness. On the margins of Moose lake it 
grows in 3 to 4 feet of water and is one of the first colonizers on the marshy 
shore. It occupies similar situations in the outer deltas of Peace and 
Athabaska rivers, but in the hay meadow sloughs such as occur at the 
Government Hay Camp it is growing in relatively dry places, where it adds 
substantially to the hay crop. Collected in flower in late July, and in 
fruit during the third week in August. 
Cree (Mamawi) creek, No. 1601; east shore of lake Mamawi, No. 
1600: Murdock Creek district, No. 1599; Government Hay Camp district, 
Slave river, No. 1604; near Heart (Raup) lake, No. 1602; Moose (Eight) 
lake, No. 1603. 
Poa pratensis L. J un e-grass, Kentucky Blue-grass. 
A common grass of damp meadows, prairies, and open woods through- 
out Wood Buffalo park. In many parts of the prairies at the eastern base 
of Caribou mountains it becomes very abundant and shares dominance with 
Calamagrostis canadensis. It is one of the most important range grasses 
in the district. Young spikelets are formed in the latter third of June and 
flowering continues through most of July. Fruits appear in late July and in 
August. 
