24 COMMON CANADIAN WILD PLANTS. 



14. CAIHUL'INA, Crantz. False Flax. 

 C. sati'va, Crantz. (Common F. Flax.) Flowers yellow- 

 ish. Stem 1-2 feet high, straight, erect, branching. Leaves 

 , lanceolate, sagittate. Pods pear-shaped, large, margined ; 

 style slender. — In flax fields. 



15. CAPSEl'lA, Vent. SnEPHBBD's Purse. 

 C. Bursa-pastO'riS, Moench. Flowers small, white. Eoot- 

 leaves clustered, pinnatifid ; stem-leaves clasping, sagittate. 

 — A very common weed. 



16. TIIIASPI, Tourn. Penntcress. 

 T. arvenae, L. (Field Pennycbess. Fbench Weed.) A 

 low smooth plant, with undivided radical leaves, and stem- 

 leaves sagittate and clasping. Pods half an inch broad, 

 deeply notched at the top. — "Waste places : very common in 



Manitoba. 



II. lEPIU'IIIM, L. Peppergrass. 



1. L. Virgfin'ieum, L. (Wild P.) Flowers small ; petah 

 present, white. Stem 1-2 feet high. Leaves lanceolate, the 

 upper linear or lanceolate and entire, the lower toothed or 

 pinnatifid, tapering towards the base. Pods marginless or 

 nearly so, oval or orbicular. — Along railways and road- 

 sides.- 



2. L. interme'dium, Gray. Distinguished from No. Iby 

 having the cotyledons incumbent instead of accumbent, and 

 the pods minutely winged at the top. — Dry sandy fields. 



3. L. rud^tra'le, L. Petals always absent. More branched 

 than the preceding. 



4. L. eampestre, L. Well distinguished from other spe- 

 cies by its sagittate, clasping leaves. Pods ovate, winged. 

 — Eather rare. 



5. L. sati'vum, L., has leaves variously divided and cut, 

 w-ith numerous roundish-winged pods, and flowers white or 

 rose-coloured. — Escaped from cultivation in some places. 



0. L. Draba, L, An obscurely hoary perennial. Upper 

 leaves auricled, lower sessile, oblong. Pods heart-shaped, 

 the style conspicuous. — Abundant about Clifton, Niagara 

 Falls. 



