83 



to. Mr. N. Taylor writes me, "Potamogelon crispus is in Seneca 

 Lake and at Boston. Why not Lake George or Champlain?" 

 It has been found in "Lake Champlain and tributaries." Flora 

 of Vermont, Vt. Agric. Exp. Sta. Bull. 187: 163. Apr. 1915.) 



Potamogeton compressiis L. Shallow ponds and streams ; rather 

 frequent. Lake George (Hulst), specimen in State Herbarium; 

 Lake George, 1876 (Hall); pond by roadside west of Clemons; 

 South Bay; Podunk Pond; Tripoli millpond; Fort Ann; Mud 

 Pond, Pattens Mills; Glen Lake; Lake Lauderdale; Fly Kill near 

 Shushan; Erie Canal at Crescent, Sept. 8, 1906, station now 

 destroyed. Formerly known as P. zosteraefolius. 



Potamogeton obtusifolms Mert. & Koch. Bolton, Lake George, 

 Aug. 18, 1880 (Hall); Dunhams Bay in Waterlily Creek, 1891 

 (Hulst), a specimen in Columbia Herbarium; South Bay, Oct. 6, 

 1903 and Aug. 21, 1906. 



Potamogeton Friesii Ruprecht. Paradise Bay, Aug., 1891, and 

 Dunhams Bay Creek, Aug. 1899 (Hulst). These specimens have 

 not been seen. 



Potamogeton piisillus L. Ponds and slow streams; rather 

 frequent. Galway Reservoir, Aug. 16, 1886, the var. vulgaris Fr. 

 (Burt's herbarium) ; Copeland Pond ; Tripoli millpond ; North and 

 South Beaver Creeks and tributaries; Glen Lake; Hedges Lake 

 near Shushan. 



Potamogeton diversifolius Raf. Bakers Falls in Hudson River, 

 Sept. 13, 1900, determined by Dr. Peck. Formerly known as 

 P. hydridus. 



Potamogeton dimorphus Raf. Lake George, Aug. 1880 (Hall); 

 Paradise Bay (Hulst) ; sandy shores of Harris Bay, Lake George, 

 Aug. 28, 1899, fruit; Pond Brook in rather swift water, W. Fort 

 Ann P.O., Aug. 17, 1893. Formerly known as P. Spirillus. 



Potamogeton pectinatus L, Ponds and streams in rather deep 

 water. Lake George (Hulst); South Bay; Tripoli millpond and 

 in Halfway Brook east ; Smiths Basin ; Lake Lauderdale ; Hedges 

 Lake; Battenkill River south of Shushan. 



Potamogeton Rohhinsii Oakes. Harris Bay, Lake George, 

 Aug. 28, 1899. "Potamogeton Robbinsii Oakes. Ballston 

 Lake, July. Though the plants were abundant and the flowering 



