[Vol. 9 



170 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



July, LS7G, Schrenk (Mo. Bot. Gard. Herb.) ; Southern Pond, 

 Catskill Mts., 1866, Clinton (Gray Herb.); Catskill Lake, 

 June, 1888, Canby (Mo. Bot. Gard. Herb.) ; submerged on 

 east shore of Cayuta Lake, Schuyler Co., 23 August, 1893, 

 Clinton (U. S. Nat. Herb.); Lake Tear of the Clouds, Mt. 

 Marcy, 6 September, Britton (N. Y. Bot. Gard. Herb.) ; Lake 



Mahopac, 4 October, 1891, Morong (N. Y. Bot. Gard. 



Herb.) ; Upper Ansable Pond, Adirondacks, 3 September, 

 1894, Britton (N. Y. Bot. Gard. Herb.); on sand bottom, 

 Lake Placid, 6 September, 1896, Dr. & Mrs. Britton (N. Y. 

 Bot. Gard. Herb.); Clear Lake, south of Elk Lake, Adiron- 

 dacks, 4 September, 1894, Britton (N. Y. Bot. Gard. Herb.) ; 

 Chilson Lake, 31 August, 1900, Dr. & Mrs. Britton (N. Y. 

 Bot. Gard. Herb.) ; Cinnamon Lake, Steuben Co., 31 August, 

 1898, Barber 894 (Mo. Bot. Gard. Herb.); submerged on 

 sandy bottom, Duck Lake, Conquest, Cayuga Co., 1 July, 

 1916, Panics, Metcalf & Wiegand 6445 (^» r ay Herb.). 



New Jersey: submerged on sandy bottom, Budd's Lake, Morris 



Co., 2 September, 1904, Mackenzie 1025 (Mo. Bot. Gard. 

 Herb.); shores of Tom's River, Ocean Co., 18 September, 

 1873, Parker (Gray Herb.) ; submerged in salt water, Tom's 

 River, Ocean Co., 18 September, 1873, Mar tin dale (Mo. Bot. 

 Gard. Herb.) ; bed of Tom's River, Ocean Co., 16 September, 

 1867, Parker (Mo. Bot. Gard. Herb, and Gray Herb.) ; sub- 

 merged, Tom's River, Ocean Co., 17 September, 1867, Smith 

 (Mo. Bot. Gard. Herb.) ; growing abundantly on submerged 

 sand bars, in Tom's River, 15 September, 1867, Smith (Gray 

 Herb.); Lake Hopotong, Morris Co., 25 September, 1869, 

 Porter 1953 (Mo. Bot. Gard. Herb.) ; Ridgewood, 21 July, 

 1880, Brown (Mo. Bot. Gard. Herb.). 



Pennsylvania: Great Pond, Pocono Mt., Carbon Co., 7 August, 



1867, Canby (Mo. Bot. Gard. Herb.); Great Lake, Carbon 

 Co., 7 August, 1867, Porter (Mo. Bot. Gard. Herb.) ; Mont- 

 rose, Susquehanna Co., 24 May, 1869, Garber (Mo. Bot. 

 Gard. Herb.); Presque Isle, Erie, September, 1868, Garber 

 (Mo. Bot. Gard. Herb.); Erie, July, 1868, Garber (Gray 

 Herb.) ; Presque Isle, Erie, 28 July, 1868, Garber (Mo. Bot. 

 Gard. Herb, and N. Y. Bot. Gard. Herb.) ; Delaware R. at 

 Monroe, Bucks Co., 24 July, 1886, Ruth (Univ. Minn. 

 Herb.) ; Bowman's Pond, Wyoming, 17 July, 1807, Brown 



