8 CRUCIFER^E. 



CARDAMINE. (Bitter Cress.) 



1. C. amara. L. (Large-flowered Bitter Cress.) 

 Wet meadows. 4-6. 



Side of Canal at Greenford. 



2. C. pratensis. L. (Cuckoo Flower. Ladies' Smock.) 

 Meadows. 4-6. 



Everywhere abundant. 



3. C. hirsuta. L. (Hairy Bitter Cress.) 

 Moist places. 4-9. 



a. C. sylvatica. Link. C. flexuosa. With. 



Pinner, Harrow Weald; Eastcott, Stanmore. (Flor. 

 Midd.) 



. C. hirsuta. L. (Bab.) Harrow Weald, Pinner and 

 Ruislip; near Stanmore Church. (Flor. Midd.) 



NASTURTIUM. ( Watercress.) 



1. N. officinale. Br. (Common Watercress.) 

 Brooks and rivulets. 5-9. 



Canal, frequent; ditch at Kenton, and various other 

 places, but not occurring in great plenty. 



2. N. terrestre. Br. (Marsh Yellow Cress.) 

 Damp places. 6-9. 



At Ruislip, abundant in a ditch near the Common : 

 ditch at Headstone, wet ground at Harrow Weald, and 

 near Eastcott; Woodridings, Pinner, in tolerable plenty. 

 Stanmore Heath. (Flor. Midd.) 



3. N. amphibium. Br. (Amphibious Cress. Great 



Water Radish.) 

 Watery places. 6-9. 

 Canal at Greenford. 



