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PAPAVERACEAE 
Corydalis sempervirens (L.) Pers. Capnoides sempervirens (L.) Borkh. Pale 
CORYDALIS. 
Occasional in the park area, and collected thus far only in crevices on 
granite hills in the Peace delta and along the upper Slave river. In flower 
June 9, and with both flowers and fruit August 15. 
Along Quatre Fourches river, No. 783; Government Hay Camp dis- 
trict, Slave river, No. 2443. 
C. aurea Willd. Capnoides aurea (Willd.) Kuntze, Golden Corydalis. 
Common in cabin clearings and in the disturbed soil of river banks, 
but abundant in recently burned areas. It is one of the pioneer plants in 
the new briiles. Collected in flower and immature fruit during the latter 
part of June, and in various stages of flowering and fruiting through the 
remainder of the summer. 
Government Hay Camp district, Slave river, No. 2441; Pine Lake dis- 
trict, No. 2440; near sink-hole 16 miles east of Moose lake, No. 2442; base 
of eastern slope of Caribou mountains, Nos. 2438, 2439; lower Slave river, 
No. 781 ; Clewi river, Russell, No. 97. 
CRUCIFERAE 
Draba nemorosa L. Whitlow Grass. 
Common in dry prairies, clearings, and on sandy lake shores through- 
out the upland. A common weed of dry soils about the settlements, and 
an abundant inhabitant of ant hills and dry buffalo wallow's. Found with 
flowers and fruit from the latter part of June through most of the summer. 
Fort Smith, No. 808; Pine Lake district, Nos. 2446, 2449, 2450; sink- 
hole 16 miles east of Moose lake, No. 2447; base of eastern slope of Caribou 
mountains, Nos. 2444-a, 2445. 
Thlasfi arvense L. Penny-cress. 
Occasional as an adventive weed in the settled areas. In fruit 
August 12. 
Government Hay Camp, Slave river, No. 2454. 
Lepidium apetalum Willd. Pepper-crass, Bird-seed. 
Occasional in dry prairie openings and old buffalo wallows in the 
upland districts. Collected with flowers and immature fruit June 22, and 
with mature fruit August 20. 
Near Heart (Raup) lake, No. 2453; Pine Lake district, No. 2451; 
sink- hole 16 miles east of Moose lake, No. 2452. 
Capsella Bursa-pastoris (L.) Medic. Bursa Bursa-pastoris (L.) Britton. Shepherd's 
Purse. 
Adventive and common about the settlements. Collected with flowers 
and fruit June 23 and August 6. 
Government Hay Camp, Slave river, No. 2462; Fort Smith, No. 797. 
