14 COMMON CANADIAN WILD PLANTS. 



3. CARDAM'INE, L. BITTER CRKSS. 



1. C. rhomboi'dea, DC. (SPRINCJ CRKSS.) Flowers white 

 or (in var. purpurea) rose-purple. Stem tuberous at //, 

 Lower leaves round-cordate ; upper nearly lanceolate ; all some- 

 what angled or toothed. Wet meadows. 



2. C. pratensis, I- (CUCKOO-FLOWER. LADIES' SMOCK.) 

 Flowers white or rose-colour, showy. Stem from a short root- 

 stock. Leaves pinnate, leaflets 7-15, those of the lower leaves 

 rounded and stalked, entire or nearly so. Bogs. 



3. C. hirsu'ta, L. (SMALL BITTER CRKSS.) Flowers white, 

 small. Root fibrous. Leaves pinnate, leaflets 5-11, the terminal 

 leaflets largest. Pods erect, slender. Wet places. 



4. AR'ABIS, L. ROCK CRKSS. 

 * Seeds in one row in each cell, nearly as broad as the partition. 



1. A. lyra'ta, L. (Low R.) Flowers white, twice as long as 

 the calyx. Radical leaves clustered, pinnatifid, the terminal 

 lobe largest ; stem-leaves scattered. Pods slender, erect, and 

 spreading. Rocky or sandy shores. 



2. A. hirsu'ta, Scop. (HAIRY R.) Flowers greenish-white, 

 small, slightly longer than the calyx. Stem-leaves many, rough, 

 sagittate. Pods erect, straight. Stems 1-2 feet high, 2 or 3 from 

 the same root. Rocky shores and dry plains. 



3. A. Iseviga'ta, DC. (SMOOTH R.) Flowers white, rather 

 small. Leaves linear or lanceolate, entire or slightly toothed, 

 sagittate, clasping. Pods long and narrow, recurped-spreadfag. 

 Stem glaucous, 1-2 feet high. Dry hill-sides. Easily recognized 

 by the pods. 



4. A. Canadensis, L. (STCKLE-POD. ) Flowers whitish, with 

 linear petals, about twice the length of the calyx. Stem-leaves 

 pointed at both ends, downy. Pods 2-3 inches long, scythe- 

 shaped, hanging. Stem 2-3 feet high. A striking plant when 

 the pods are fully formed. Dry woods and ravines. 



* * Seeds in two distinct rows in rack cell, narrower than tin' jmi-fitfun. 



5. A. perfolia'ta, Lam. (TOWKU MI-STARD.) Flowers yel- 

 lowish-white. Petals scarcely longer than the calyx. Stnn '_' 1 

 feet high, glaucous. Cauline leaves ovate-lanceolate or oblong. 



