Potamogeton 



POTAMOGETONACEAE 



83 



50 



Map 95 

 Potamogeton panormitanus 

 var. major G. Ffscher 



"To 



Map 95a 

 Potamogeton panormitanus 

 var. minor B'v. 



o 50 



Map 96 



Potamogeton Robbinsii Oakes 



o To 



Map 97 



Potamogeton pectinatus L. 



o 50 



Map 98 

 Z annYchellia palustris L. 

 /ar. major (Boenningh.l Koch 



20a. Potamogeton panormitanus var. minor Biv. Map 95a. Our 

 specimens are from northern lakes. 



Mass. to n. Man. and s. B. C, southw. to Md., s. Ala., La., Tex., and 

 w. Mex. ; Eurasia. 



21. Potamogeton Robbinsii Oakes. Map 96. In a few lakes of the lake 

 area. 



N. B. to n. Ont., southw. to Del., Pa., n. Ind. ; also Wyo. and s. B. C. 



to Nev. 



21a. Potamogeton Robbinsii f. cultellatus Fassett. (Rhodora 35: 389. 

 1933.) Fassett cites a specimen of this form which was collected by J. T. 

 Scovell in Lake Maxinkuckee and which is now in the Gray Herbarium. 



Conn., Ont., Mich., Ind., and Wis. 



22. Potamogeton pectinatus L. Map 97. This in frequent to common in 

 all of our lakes in the lake area. 



Newf . to B. C, southw. to Fla., Tex., and Calif. ; also in Eu. 



