179. 
180. 
181. 
187. 
22 
. Potamogeton .lonchites Novzeboracensis Morong, Mem. a 
Torr. Club, 3: Part 2, 20 (1893). 
. Potamogeton lucens L. Sp. Pl. 126 (1753). 
. Potamogeton lucens Connecticutensis Robbins in A. Gray, 
Man. Ed. s, 488 (1867). 
. Potamogeton major (Fries) Morong, Mem. Torr. Club, 3: Part © | 
2, 41 (1893). 
Potamogeton pusillus var. major Fries, Novit. Ed. 2, 48 (1828). 
Potamogeton Friesti Ruprecht, Beitr. Pfl. des Russ. Reiches, 
4: 43 (1845). 
Potamogeton compressus J. E. Smith, Eng. Bot. 3: £. 476 (1794), 
not L : 
Potamogeton Mysticus Morong, Coult. Bot. Gaz. 5: 50 (1880). 
Potamogeton natans L. Sp. Pl. 126 (1753). 
Potamogeton Nuttallii Cham. & Schlecht. Linnza, 2: :226, 7. 
0, (1327). 
Potamogeton Pennsylvanicus Willd. ; Cham. & Schlecht. Lin- 
nea, 2: 227 (1927). 
Potamogeton Claytonit Tuckerm. Am. Journ. Sci. 45: 38 
(1843). 
. Potamogeton Oakesianus Robbins in A. Gray, Man. Ed. 5, 
485 (1867). 
. Potamogeton obtusifolius M. & K. Deutsch. Fl. 1: 855 
(1823). 
Potamogeton pectinatus L. Sp. Pl. 127 (1753). 
. Potamogeton perfoliatus L. Sp. Pl. 126 (1753). 
Potamogeton perfoliatus Richardsonii A. Bennett, Britten's 
Journ. Bot. 27: 25 (1889). 
Potamogeton perfoliatus var. lanceolatus Robbins in A. Gray, 
Man. Ed. 5, 488 (1867), not Blytt, Norges Fl. (1861). 
Potamogeton preelongus Wulf. in Róm. Arch. 3: 331 (1805). 
. Potamogeton pulcher Tuckerm. Am. Journ. Sci. 45: 38 (1843). 
. Potamogeton pusillus L. Sp. Pl. 127 (1753). 
. Potamogeton pusillus Panormitanus (Biv.) Morong, Mem. 
Torr. Club, 3: Part 2, 46 (1893). 
Potamogeton Panormitanus Biv. Sic. Pl. (1806—7). 
. Potamogeton pusillus polyphyllus Morong, Coult. Bot. Gaz. 
5: 51 (1880). 
Potamogeton pusillus Sturrockii A. Bennett, in Hook. Stud. 
Fl. Ed. 3, 435 (1884). 
Potamogeton Robbinsii Oakes, Hovey's Mag. 7: 180 (1841). 
