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P. tridentata Ait. Sibbaldiopsis tridentata (Ait.) Rydb. Three-toothed Cinquefoil. 
Occasional on dry, sandy ridges and granite hills. Collected in flower 
July 11, and in fruit August 15. 
Government Hay Camp district, Slave river, No. 2729; Pine Lake 
district, No. 2730. 
P. fruticosa L. Dasiphora jruticosa (L.) Rydb. Shrubby Cinquefoil. 
A common muskeg shrub throughout the upland districts, and also 
found on sterile, stony ground. It sometimes grows in thickets where it 
makes up a large part of the muskeg cover, and at others is scattered 
through the timber. Early flowers found during the last third of June, 
and occasional ones through most of the summer. The height of the flower- 
ing season is probably about mid-July. 
Near Heart (Raup) lake, No. 2721; Fort Smith, No. 961; Pine Lake 
district, Nos. 2722, 2723, 2725; Moose (Eight) Lake district, No. 2724; 
Little Buffalo river, Rrnsell, No. 88. 
P. arguta Pursh. Drymocallis agrimonioides (Pursh) Rydb. 
Common in dry prairies and rock crevices. Found in flower early 
in July, and in fruit early in August. 
East shore of lake Mamawi, No. 2690; Peace point, Nos. 2688, 2689; 
base of eastern slope of Caribou mountains, No. 2691. 
Geum macrophyllum Willd., var. perincisum (Rydb.) Raup. G. perincisum Rydb. 
G. oregonense Rydb., not Scheutz, See Rhod. xxxiii, 176 (1931). Avens. 
Common in prairies and sloughs throughout the region, and occasion- 
ally found in open woods. New rosettes collected June 12, and young 
inflorescences during the last week in June. The height of the flowering 
season is in the first half of July, and fruits are matured in late July and 
in August. 
30th base line district, Slave river, No. 923; Murdock Creek district, 
No. 2589; Government Hay Camp district, Slave river, No. 2591; Fort 
Smith district, Nos. 922, 925, 926; Pine Lake district, Nos. 2590, 2592; 
Peace point, No. 2588; sink-hole 16 miles east of Moose lake, No. 2593; 
Moose (Eight) Lake district, Nos. 2594, 2595, 2596; Indian graveyard, 
Peace river, No. 2597; base of eastern slope of Caribou mountains, Nos. 
2598, 2599, 2600; lower Slave river, No. 924. 
G. strictum Ait. 
Common in dry prairies and occasional in cabin clearings. Collected 
in flower during late June and most of July. Fruits mature in early August. 
East shore of lake Mamawi, No. 2579; Pine Lake ranger station, 
No. 2574; Indian graveyard, Peace river, No. 2580; base of eastern slope 
of Caribou mountains, Nos, 2575, 2576, 2577, 2578. 
G. triflorum Pursh. Sieverda tri flora (Pursh) R,Br. Old Man's Whiskers. 
Common on dry upland prairies and rocky hills. Late flowers and 
immature fruiting heads collected June 15 and 25. Fruits are matured in 
July and early August. During the latter part of July the Peace Point 
prairie is coloured pink by the abundance of fruiting styles of this species. 
