28 Rhodora [FEBRUARY 
verticillata, B. angustifolia Muhl., Cat. Pl. Am. Sept. 84 (1813). 
Udora verticillata ? minor Engelm., publ. in syn., Pringsheim's Jahrb. 
wissen. Bot. i. 465 (1885). Philotria minor (Engelm.) Small, Fl. 
S. E. U. S. 47 (1903). Elodea minor (Engelm.) Farwell, Rep. Mich. 
Acad. Sci. xvii. 181 (1916). 
ItLusrrations: Britton & Brown: Ill. Fl. ed. 2, i. figs. 249, 251 
(1913). 
Distripution: In fresh ponds and streams occasionally in brack- 
ish waters, avoiding calcareous regions from southern Maine to the 
District of Columbia, westward to Missouri, northern Wisconsin, 
Nebraska, and Oregon. Marne: Haley Pond, Rangeley, 1894, 
Furbish; quiet pools in Messalonskee River, Waterville, Sept. 2, 1898, 
Chamberlain & Fernald, Chamberlain, no. 774, Fernald, no. 2,750; 
Cobossee Contee Lake, Aug., 1898, T. J. Battey; South Poland, 1893, 
Furbish; East Livermore, 1894, Furbish; Androscoggin Lake, North 
Leeds, Sept. 1894, Furbish; Lake Auburn, Aug. 1898, Merrill, no. 
508; tidal pools and rills in mud flats of the river, Bowdoinham, 
Sept. 19, 1916, Fernald & Long, no. 12,448. Vermont: Windsor, 
July 27-31, 1900, Eggleston, no. 2,085. MassaAcuusETTs: Lake 
Cochichewick, North Andover, Sept. 24, 1903, Pease, no. 2,638; 
Somerville, Warner Bailey; in shallow water, Spot Pond, Stoneham, 
Sept. 6, 1912, C. C. Kingman; Alewife Brook, Medford, Aug. 21, 
1870, W. Boott; Fresh Pond, Cambridge, Sept. 21, 1879, H. A. Young, 
Sept. 12, 1886, Deane, Sept. 14, 1886, Deane, Oct. 1886, Deane, E. & 
C. E. Faxon, May 27, 1903, Pease, no. 2,063; Muddy River, off 
Brookline Ave., Brookline, July 1909, Forbes; waste lands, Back 
Bay Fens, Boston, Sept. 17, 1916, F. S. Collins, no. 3,639 and Aug. 22, 
1917, F. S. Collins; sandy bottom, northern end of Mill Pond, Brew- 
ster, Aug. 4, 1918, Fernald, no. 16,001; Harwich, June 23, 1914, 
F. S. Collins, no. 2,445. Rmope IstANp: Mill Pond, Lonsdale, 
Sept. 15, 1888, A. Greene. Connecticut: in shallow pools along 
bank of Connecticut River, Hartford, Sept. 25, 1909, Blewitt, no. 609; 
shallow water of Farmington River, New Hartford, Aug. 17, 1910, 
Blewitt, no. 586; in a slowly flowing stream, Middletown, July 26, 
1914, Ware, no. 3,472; shallow water of Pistapaug Pond, Durham, 
Sept. 9, 1913, Blewitt, no. 1,680; in shallow pond, Waterbury, Aug. 23, 
1911, Blewitt, no. 573; in Stony Brook, East Haven, Sept. 12, 1914, 
Blewitt, no. 1,980; fresher waters of Beaver Creek, Milford, July 16, 
1897, E. H. Eames; stagnant water of a slough, Putnam, Aug. 31, 
1915, Weatherby, no. 3,777; Boardman's Pond, East Hartford, July 15, 
1903, Weatherby, no. 367; slow-flowing water of brooks, East Haven, 
Sept. 12, 1914, Weatherby, no. 3,591; shallow water of Pistapaug 
Pond, Wallingford, Sept. 9, 1913, Weatherby, no. 3,373; brackish 
estuary, Old Lyme, July 8, 1918, Woodward; Connecticut River, 
Hartford, July 18,.1885, Wright; Simsbury, Sept. 3, 1904, 7. Holcomb; 
Wethersfield, Wright; in lacu Bantam prope Litchfield, D. C. Eaton. 
New JERSEY: Sussex Co., July 1879, Rusby. PENNSYLVANIA: near 
