[Vol. 9 

 168 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



1894, Smith (Mo. Bot. Card. Herb.); from a canal in So. 

 Natick, water about 1 ft. deep, 25 June, 1879, Morong (N. 

 Y. Bot. Gard. Herb, and Mo. Bot. Gard. Herb.); entirely 

 submerged, Charles R., So. Natick, 4 August, 1879, Morong 

 (N. Y. Bot. Gard. Herb.). 



Norfolk Co.: Neponset River, Readville, 28 July, 1870, 

 Boott (N. Y. Bot. Gard. Herb.); Highland Lake, Norfolk, 

 1 August, 1909, Ware 724 (Mo. Bot. Gard. Herb.); Ham- 

 mond's Pond, Brookline, C. E. & W. Faxon 8 (Gray Herb.) ; 

 Lake Massapoag, 17 October, 1897, Greenman 2314 (Mo. 

 Bot. Gard. Herb.) ; Dedham, growing in shallow water, mud 

 bottom, 24 July, 1902, Forbes (Gray Herb.) ; Lake Massa- 

 poag, 11 September, 1903, Eaton (Mo. Bot. Gard. Herb.); 

 in Sutton's Brook, at its junction with Charles River, Need- 

 ham, 12 July, 1885, Fuller (Gray Herb.). 



Bristol Co.: Mulberry Brook, Easton, 16 August, 1903, Eaton 

 (Mo. Bot. Gard. Herb.); Flyaway Pond, No. Easton, 15 

 July, 1903, Eaton (Mo. Bot. Gard. Herb.); Canoe River, 2 

 August, 1903, Eaton (Mo. Bot. Gard. Herb.); Watson's 

 Pond, Taunton, 12 July, 1903, Eaton (Mo. Bot. Gard. 

 Herb.); few stations in stream, Swansea, 16 August, 1912, 

 Sanford 38 (Gray Herb.). 



Worcester Co.: Massapoag Lake, 11 September, 1903, Eaton 

 (Mo. Bot. Gard. Herb.) ; Uxbridge, 30 August, 1864, Rob- 

 bins (Mo. Bot. Gard. Herb, and Gray Herb.); "river," Ux- 

 bridge, 1 August, 1867, Robbins (N. Y. Bot. Gard. Herb.); 

 pond, Graf ton, 27 July, 1866, Robbins (Mo. Bot. Gard. Herb, 

 and N. Y. Bot. Gard. Herb.) ; pond connected with Black- 

 stone River, 30 August, 1864, Robbins (Mo. Bot. Gard. 

 Herb.); Uxbridge, 1845, Robbins (Mo. Bot. Gard. Herb.); 

 Uxbridge, without date, ex. herb. Robbins (N. Y. Bot. Gard. 

 Herb.) ; millpond, depth of 2-3 ft., Uxbridge, 30 August, 

 1866, Robbins (Mo. Bot. Gard. Herb.); Cohasset Brook, 

 Southbridge, alt. 640 ft., 12 August, 1899, Harper (N. Y. 

 Bot. Gard. Herb.) ; rocky bottom of Quenebang River, Stur- 

 bridge, alt. 540 ft., 23 July, 1899, Harper (Gray Herb.) ; Ux- 

 bridge, 31 August, 1907, Eaton (Mo. Bot. Gard. Herb.). 



Franklin Co.: Ashfield Pond, Ashfield, 18 July, 1909, Williams 



(Gray Herb.). 

 Berkshire Co.: Lake Undine, Mt. Everett, 1 October, 1897, N. 



