87 



Gentiana Andrewsii, Chisel. (Closed Gentian.) 

 Quite often found in the region of the last, yet nowhere very com- 

 mon. "The soapwort species (G. saponaria) " referred to in the 

 Proc. E. I., Vol. II, p. 406, as growing in Groveland, is undoubtedly 

 a mistake, and should be this species of which G. saponaria, Frcel, 

 is a synonyme. 



Bartonia tenella, Muhl. 

 Lynnfleld (Rev. A. P. Chute, Proc. E. I., Vol. 11, p. 47). " Swamp 

 at the Plckman Farm, Salem" (memo. Dr. Chas. Pickering). 



Menyantlies trifoliata, L. (Buckbean.) 

 Bogs in the central and northern parts of the county, where it is 

 common. Scarce in most other places. Bog-bean would be a 

 better name. 



Iiimnanthemum lacTinosum, Ch-iseb. (Floating Heart.) Quite 

 common in ponds. 



APOCYNACE^. 



(Dogbane Familt.) 



Apocymim androasemifolium, L. (Spkeading Dogbane.) 

 Frequent. Roadsides and copses. A variety witli downy leaves 

 and quite deep rose-colored flowers is found at Georgetown by 

 Mrs. Horner. 



Apocynum canuabmum, L. (Indian Hemp.) 

 Georgetown (Mrs. Horner) ; Sluice pond, Lynn (Herbert A. Young) ; 

 Andover (Mrs. Downs). Shores of the Merrimac at W. Newbury. 



Var. hypericifolium (Gray's Manual). 

 Essex County (Oakes). "Oakes showed me a depressed form at 

 Middleton pond" (Dr. Chas. Pickering). This species is much 

 rarer than the first. 



ASCLEPIADACEiE. 



(Milkweed Family.) 



Asclepias Cornuti, Decaisne. (Common Milkweed ob Silkwbbd.) 

 Very common. Varies much, both as regards the shape of the leaves 

 and the color of the flowers. 



During the last century the coma of the seeds of this plant was 

 used for wick-yarn. " The candles will burn equally free and aflbrd 

 a clearer light than those made of cotton wicks. They will not re- 



