[Vol. 9 



182 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Herb.) ; abundant in mill-race and stiller waters of Mill 

 River, near tide water, local, Fairfield, 5 September, 1897, 

 Eamcs (Gray Herb.). 

 Vermont: in Connecticut River near Brattleborough, from foot 



deep to an inch or less (in fall when river recedes), on a 

 pebbly bottom where the mud is deposited between the 

 rocks, 1866, Frost 6 (Mo. Bot. Gard. Herb.); Lake Bomo- 



W. Hubbardton. 3 October 



786 (G 



Herb, and N. Y. Bot. Gard. Herb.); above low water line, 

 region Lake Bomoseen, Castleton, 5 September, 1909, Dut- 

 ton 232 (Gray Herb.). 

 Massachusetts: Uxbridge, 1831, Rabbins 7 (Mo. Bot. Gard. 



Herb.) ; Uxbridge, 1843, Robbins 8 (Mo. Bot. Gard. Herb.) ; 

 Uxbridge, without date, Robbins 9 (Mo. Bot. Gard. Herb.) ; 

 Uxbridge, 1848, Robbins 11 (Mo. Bot. Gard. Herb.); Ux- 

 bridge, 30 August, 1866, Robbins U ( Mo. Bot. Gard. Herb.) ; 



Uxbridge, in a mill pond, 1865, Robbins (Mo. Bot. Gard 

 Herb.) ; very shallow part of a cool pond (Capron's reser- 

 voir), 4 September, 1809, Robbins (N. Y. Bot. Gard. Herb.) 

 small cold pond (Capron's fountain), (5 October, 1867, Rob- 

 bins (N. Y. Bot. Gard. Herb.) ; Uxbridge, 1866, Robbins (N 

 Y. Bot. Gard. Herb.) ; some entirely submerged and some ir 

 mud on shore, South Natick, 25 June, 1ST!), Morong\ : (N 

 Y. Bot. Gard. Herb.); ponds, Amherst, September, 1874 

 Jesup (Mo. Bot. Gard. Herb.); shallow water, So. Natick 



September, 1878, Morong (Mo. Bot. Gard. Herb.); Taun- 

 ton, Watson's Pond, 15 September, 1903, Eaton (Mo. Bot. 

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

 Gard. Herb.); Shawshim River, Bedford, 25 August, 1884, 

 Jenks & Swan (Mo. Bot. Gard. Herb, and Gray Herb.) ; Ne- 

 ponset River, Paul's Bridge, Faxon (Gray Herb.) ; Bedford, 

 without date, Swan (Gray Herb.). 



New Jersey : muddy banks of the Delaware River, Camden, Sep- 

 tember, 1860, D. C. Eaton (Mo. Bot. Gard. Herb.); along 

 shores of the Passaic River, 6 mi. north of Newark, August, 

 1858, Ennis (Mo. Bot. Gard. Herb.) ; banks of the Delaware, 

 above Camden, 1867 (?), Durand (Gray Herb.); shores of 

 the Delaware, 22 September, 1866, Parker (Mo. Bot. Gard. 

 Herb.) ; gravelly shore of the Delaware River, between high 

 and low water mark, Camden, 20 September, 1867, without 



