SPERMATOPHYTA. 65 



Euphorbia L. Spurge. 

 Preslii Guss. 



Millbury. 



maculata L. Milk Purslane. In dry soil, common, 



corollata L. Flowering Spurge. 



Southbridge. Mr. L. E. Ammidown. 

 Esula L. 



Worcester. Miss K. I. Fish. Rare. 



Cyparissias L. Cypress Spurge. Escaped; common. 

 Peplus L. Petty Spurge. In waste ground. 



Worcester. Mr. George Coult. 



CALLITRICHACE.E (WATER STARWORT 

 FAMILY). 



Callitriche L. Water Starwort. 



palustris L. In brooks, common, 



heterophylla Pursh. 

 Near Mount Wachusett. W. W. B. and J. F. C. 



ANACARDIACE.E (CASHEW FAMILY). 



Rhus L. Sumach. 



typhina L. Staghorn Sumach. 



In dry or rocky soil, common. 



glabra L. Smooth Sumach. In dry soil, common. 

 copallina L. Dwarf Sumach. With the preceding. 



Vernix L. Poison Dogwood. 



In swamps and low grounds. 

 Toxicodendron L. Poison Ivy. 



In thickets and along walls and fences. 



