64 FLORA OF WORCESTER COUNTY. 



carolinianum L. In cultivated grounds. 



Bicknellii Britton. 



Templeton. Mr. P. Blodgett. 



pusillum Burm. f. In waste places, rare. 



Erodium L'Her. Storksbill. 



cicutarium (L.) L'Her. Occasional, in waste places. 



RUTACE.E (RUE FAMILY). 



Zanthoxylum L. Prickly Ash. 



americanum Mill. Northern Prickly Ash. 



Millbury. 



Ptelea L. Shrubby Trefoil. 

 trifoliata L. 



A tree of this species was found growing by a road- 

 side in Berlin, in a situation which suggested 

 growth from a seed dropped by a bird. 



POLYGALACE^: (MILKWORT FAMILY). 



Polygala (Tourn.) L. Milkwort. 



paucifolia Willd. Fringed Polygala. 



In rich woods, common. 

 polygama Walt. 



Auburn. 



sanguinea L. In sandy and moist ground. 



Nuttallii T. and G. In dry sandy soil. 



verticillata L. In dry soil. 



EUPHORBIACE^: (SPURGE FAMILY). 



Acalypha L. Three-seeded Mercury. 



virginica L. In fields and open places. 



