51 



E. crispus, L. YELLOW DOCK. 



Siasconset. 



R. obtusifolius, L. BITTER DOCK. 

 R. crispus, L. x R. obtusifolius, L. 



Quite common at Siasconset. L. L. D. 

 R. maritimus, L. GOLDEN DOCK. 



Sesachacha, Long Pond, &c. 

 R. Acetosella, L. SORREL. 



LAURACE^E. 



SASSAFRAS. Nees. 



S. officinale, Nees. 



Common in Tom Never's Swamp and elsewhere. 



SANTALACE^E. 



COMANDRA, Nutt. 



0. umbellata, Nutt. 



CERATOPHYLLACE^. 



CERATOPHYLLUM, L. 



C. demersum, L. HORNWORT. 



Reported by President Hitchcock in 1838 ; never afterwards 

 till 1887, when Mr. Morong found it in Long, Hummock and 

 Miacomet Ponds. He says "The northern part of Long 

 Pond is so filled with this and one or two other aquatics that 

 one cannot see down into the water." 



CALLITRICHACE^E. 



CALLITRICHE, L. 



C. verna, L. WATER STARWORT. 

 Frequent in ponds near town. 



