PLANTS OF NORTH ELBA 



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Capnoides semper virens (Z.) Bonk. 

 Cory da lis glauca Pursh 

 Pale corydalis. Pink corydalis 



Rocky places ; often where fire has been and on rocks covered by thin 

 vegetable mold. Not rare. June to August. 



A form having white flowers was collected on the top of Altar moun- 

 tain, commonly known as Cobble hill or Cobble mountain. 



CRUCIFERAE 



Cardamine Pennsylvanica MuhL 



Pennsylvanian bitter cress 



Swamps, streams and wet places. Common and variable. June. At 

 South Meadow a small much branched but few flowered form was found. 



Cardamine parviflora Z. 



C. hirsuia sylvatica Gray 



Small flowered bitter cress 



Thin soil on rocks. Cascade lake near the eastern line of the town. 

 July. Very rare. 



Arabis laevigata (MuhL) Poir. 

 Thin woods and clearings. Rare. Allen farm. June. 



Roripa Armor acia (Z.) Hitchc. 

 Nasturtium Armor acia Fries 

 Horseradish 



Wet places. Lake Placid. June and July. Introduced and some- 

 times cultivated, but well established as a wild plant. 



Barbarea Barbarea (Z.) MacM. 



B. vulgaris var. arcuata Gray 



Yellow rocket. Winter cress 



Head of Cascade lake. June. This is the only locality in North 

 Elba in which I have seen it. 



Sisymbrium officinale (Z.) Scop. 

 Hedge mustard 



In gardens and waste places about dwellings. Raybrook and Lake 

 Placid. August. An introduced plant. 



