82 New York State Museum 



Corydalis sempervirens (L.) Pers. Pink or Pale Cory- 



dalis 



In sterile or rocky soil of the higher ridges of the 



park region on the conglomerate formation. Rare. 



Ridge above Peters run. Often appears where fires 



have occurred. 



CRUCIFERAE (Mustard Family) 

 Lepidium densiflorum Schrad., L. apctalum Gray's 

 Man. Peppergrass 

 In cinders along the Erie Railroad in the Allegheny 

 valley and doubtlessly elsewhere. 

 Lepidium campestre (L.) R. Br. Downy Peppergrass 

 With the preceding species, and also spreading to 

 adjacent banks. 

 Capsella Bursa-pastoris (L.) Medic. Shepherd's 

 Purse 

 A very common weed in cultivated and waste soil. 

 Brassica nigra (L.) Koch. Black Mustard 



A weed in fields and waste places. Infrequent. 

 Brassica arvensis (L.) Kuntze. Charlock, Wild 

 Mustard, Summer Mustard 

 A weed in cultivated fields and waste places. Fre- 

 quent. 

 Brassica Rapa L. Turnip 



An occasional escape in waste places. Red House. 

 Sisymbrium officinale (L.) Scop. Hedge Mustard 



A weed of waste places and neglected yards. In- 

 frequent. Salamanca etc. 

 Sisymbrium altissimum L. Tumble Mustard 



A rare weed along railroads and in waste soil in 

 the region adjacent to the park area. 



