112 
1930, 1931, 1938; Peace point, Nos. 1934, 1935; Moose (Eight) Lake dis- 
trict, No. 1937; Indian graveyard, Peace river, No. 1926; base of eastern 
slope of Caribou mountains, Nos. 1927, 1928, 1929. 
C. diandra Schrank. 
Abundant on the marshy shores of upland lakes and ponds, where it 
forms a zone of hummocky vegetation just back of the water's edge. Im- 
mature fruits found early in July, and mature ones through the first half 
of August. 
Pine Lake district, Nos. 1869, 1870, 1874; Moose (Eight) Lake dis- 
trict, Nos. 1871, 1872, 1873. 
C. sychnoeephala Carey. 
Apparently rare, and collected thus far only from a small sink-hole 
slough in the upland region. In flower July 14. 
Round lake, about 18 miles south of Pine lake, No. 1868. 
C. Bebbii Olney. 
Found only in the upper delta districts of the main rivers, where it 
inhabits damp slough margins. Immature fruits collected late in July and 
mature ones in mid-August. 
Reed portage, upper Embarras river, No. 1959; Indian graveyard, 
Peace river, No. 1960. 
C. tenera Dewey. 
Occasional on damp, upland slough margins. Immature fruit collected 
July 21, and mature fruit in August. 
Peace point, No. 1943, sink-hole 16 miles east of Moose lake, No. 
1944. 
C. praticola Rydb, C. pratends Drejer. 
Common in prairie openings throughout the area. Found in various 
stages of flower and fruit during the latter part of July and August. 
East shore of lake Mamawi, No. 1905; near Heart (Raup) lake, No. 
1904; sink-hole 16 miles east of Moose lake, No. 1907; base of eastern 
slope of Caribou mountains, No. 1906. 
C. disperraa Dewey. C. tenella Schkuhr. 
A diminutive but common sedge in upland muskeg thickets and 
sloughs throughout the region. Immature fruits collected in the first half 
of July, and mature ones during the latter part of July and August. 
Pine Lake district, Nos. 1894, 1895; Moose (Eight) Lake district, 
Nos. 1891, 1893; base of eastern slope of Caribou mountains, Nos. 1890, 
1892; eastern edge of Caribou Mountain plateau, No. 1889; Clewi river, 
Russell, No. 98. 
C. tenuiflora Wahl. 
Apparently rare in the park area, and limited to cold upland bogs. 
Immature fruit collected July 9. 
Pine Lake district, No. 1950. 
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