46 FLORA OF WORCESTER COUNTY. 



virginica." (It was really C. caroliniana, but the two were not 

 distinguished in that book). See "Letters of Asa Gray," vol. I, 

 P- 13- 



Portulacca (Tourn.) L. Purslane. 

 oleracea L. Common Purslane. 



In fields and cultivated grounds, common. 

 This is the "pusley" of Charles Dudley Warner's My Summer in 

 a Garden. "I am satisfied that it is useless to try to cultivate 'pus- 

 ley.' I set a little of it one side, and gave it some extra care. It did 

 not thrive as well as that which I was fighting. The fact is, there 

 is a spirit of moral perversity in the plant which makes it grow the 

 more, the more it is interfered with. I am satisfied of that. I doubt 

 if any one has raised more 'pusley' this year than I have; and my 

 warfare with it has been continual. Neither of us has slept much." 



CERATOPHYLLACE^E (HORNWORT FAMILY). 



Ceratophyllum L. Hornwort. 



demersum L. In ponds. 



Prof. G. E. Stone. 



NYMPH^EACE^: (WATER LILY FAMILY). 



Nymphsea (Tourn.) L. Yellow Pond Lily, 

 advena Ait. Cow Lily. 



In ponds and slow streams, common. 

 xnicrophylla Pers. 



Southbridge. Mr. L. E. Ammidown. 

 Castalia Salisb. Water Lily. 



odorata (Ait.) Woodville and Wood. Sweet-scented Water 

 Lily. In ponds and slow streams, common. 



Brasenia Schreb. Water Shield. 



Schreberi Gmel. In ponds and slow streams. 



