Report of the State Botanist. 37 



but little different in texture size and shape from the submerged 

 leaves. 



Potamogeton heterophyllus Schreh . 



Specimens referable to form longij>edunculatus Morong were 

 collected near the outlet of Seneca lake. 



Potamogeton lucens L. 



This species occurs in Oneida and Cayuga lakes. The var. 

 Connecticuten.d>i Robbins was collected in Stissing pond near 

 Pine Plains. This is the .only station recorded for it in our 

 State. 



Potamogeton filiformis Pers. 



Cedar lake, Herkimer county. July. This is P. marinus of 

 the Manual. It is scarcely separable, in some of its forms, from 

 P. pectinatus in the absence of fruit, and it has probably been 

 often confused with that species. 



Potamogeton pectinatus L . 



A form of this species is abundant in Warners lake, Albany 

 county, in which the peduncle is whitish and 8 to 12 inches long. 



In the j^. Y. State Flora nine species of Potamogeton are 

 recorded. The number of species now known to belong to the 

 State is twenty-seven, all of which, except P. lateralis, are repre- 

 sented in the Herbarium. 



The following is a list of the names of the species, varieties 



and forms as given in the Monograph of Dr. Morong and in the 



Manual : 



MoRONG's Monograph. 



