BY JOHN H. SEARS. 97 



Order MalvacesB. 



Common Mallow, Malva rotuiidifolia, grows near dwellings and in 

 garden paths. European. 



Indian Mallow, AbiUüon Avicennce, a tall, coarse plant, escapedfrom 

 gardeus. From ludia. 



Order Geraniacese. 



Wood-Sorrel, Oxalis stricta, grows around dwellings and in gar- 

 deus. Common. 



Order Anacardiaceae. 



Poison Ivy, Uhus Toxicodendron, stone walls, climbing on trees, and 

 in Sandy flelds. 



Order Leguminossß. 



Woad Waxen, Genista tinctoria. This plant was introduced from 

 Europe, prior to 1628, as a dye plant. It is fast covering tlie unculti- 

 vated pastures in all parts of the couuty. It is a uative of central 

 and Southern Europe. 



Zigzag Clover, Trifolium medium, forms dense patches in Danvers 

 and Salem. European. 



Yellow or Hop Clover, Trifolium agrarium, sandy fields and road- 

 sides. European. 



Black Medick, Medicago lupulina, abundant in grass lands. Euro- 

 pean. 



Vetch, Vicia Cracca, a very pretty plant, but a bad weed in mowed 

 land, as it is hard to exterminate. Abundant at Danversport. 



"Wild Indigo, Baptisia tinctoria, abundant in old pastures. 



Ground Nut, Apios tuherosa, grows on tlie edges of flelds, and on 

 walls and fences, climbing on the grass. 



Order Kosacese. 



Canada Burnet, Poterium Canadense, a weed in fresh meadows and 

 on river banks. Common in Danvers, Topsfield and Ipswich. 



Cinque-foil, Potentilla Norvegica, grows in fresh meadows. It is a 

 coarse weed. 



High Blackberry, Buhua vülosus, grows on the borders of thickets 

 and wet meadows. 



