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Dicentra cucullaria, DC. (DuTCHMAN’s BREECHES. ) 
Gloucester, 1863 and 1877 (Mrs. Babson) ; ‘‘ Andover” (memo. Mrs. 
Downs). Rare. 
Corydalis glauca, Pursh.. (CoRYDALIs.) | 
Rocky hills. Not very common. 
Fumaria officinalis, Z. (Common Fumirory.) 
Ipswich, Danvers (Oakes, 1819); Wenham (Miss Davis); Salem 
(S. B. Buttrick); Boxford (Miss Perley).. A rather scarce escaped 
plant. (Int. from Eu.) 
CRUCIFERZ., 
(MusTaRD FamMILy.) 
Nasturtium officinale, R. Br. (EUROPEAN, OR TRUE WATER 
CRESS.) 
“Lynn” (Tracy’s list); ‘‘ Andover” (memo. Rev. H. P. Nichols). 
It is very doubtful if this species grows in the county, as the cress 
usually found is Cardamine hirsuta. 
Nasturtium palustre, DC. (Mars CRrsss.) 
In wet places. Quite common and variable. 
Nasturtium Armoracia, Fries. (HORSERADISH. ) 
Often escaping from cultivation. (Introduced from Europe.) 
Cardamine rhomboidea, DC. (SPRING CRESs.) 
Not rare in wet places. 
Cardamine hirsuta, Z. (SMALL BITTER CREss.) 
Brooks and other wet places. Common. Sold in the market as 
Water Cress and often supposed to be N. officinalis. 
Var. sylvatica. 
‘‘Lynn” (Tracy) ; ‘‘ Essex County” (memo. Dr. Charles Pickering. ) 
Arabis levigata, DC. 
Beverly (John C. Phillips). 
Arabis Canadensis, Z. (SICKLE-POD.) 
Topsfield (Oakes); Danvers (J. H. Sears); and a few other local- 
ities. Rather scarce. 
Arabis perfoliata, Lam. (Towrr Mustarp.) 
“Paradise,” Salem, 1819 (S. Bass); Essex County (Oakes, memo. 
Hovey’s Mag., Vol. VII); near the Ocean House, Revere Beach (C.. 
E. Faxon). 
Barbarea vulgaris, R. Br. (YELLOW ROCKET.) 
Quite common in damp places. 
Sisymbrium officinale, Scop. (Hepce Musrarp.) 
A common weed. (Nat. from Eu.) 
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