t 
161. 
162. 
165. 
166. 
166a. 
173- 
174. 
21 
Potamogeton filiformis Pers. Syn. 1: 152 (1805). 
Potamogeton foliosus Raf. Med. Rep. (II.) 5: 354 (1808). 
Potamogeton pauciflorus Pursh, Fl. Am. Sept. 121 (1814) 
. Potamogeton foliosus Niagarensis (Tuckerm.) Morong, 
Mem. Torr. Club, 3: Part 2, 39 (1893). 
‘Potamogeton Ni tagarensts Tuckerm. Am. Journ. Sci. (1L) 3: 
354 (1849). 
; Seier gemmiparus (Robbins) Morong, Coult. Bot. 
Gaz. 5: 51 (1880). 
Lotamogeton pusillus var. (?) gemmiparus Robbins in A. Gray, 
Man. Ed. 5, 489 (1867). 
ron ate heterophyllus Schreb. Spicileg. Fl. Lips. 21 
(1771) 
deen gramineus Fries, Novit. Ed. 2, 36 (1828), not L. 
Potamogeton gramineus var. heterophyllus Fries, Novit. Ed. 2, 
35 (1828). 
Potamogeton heterophyllus graminifolius (Fries) Morong, 
Mem. Torr. Club, 3: Part 2, 24 (1893) ; 
Potamogeton gramineus var. graminifolius Fries, Novit. Ed. 2, 
36 (1828). 
Potamogeton heterophyllus longipedunculatus (Merat) 
Morong, Mem. Torr. Club, 3: Part 2, 24 (1893). 
Potamogeton longipedunculatus Merat. Fl. Paris (according to 
A. Bennett). 
. Potamogeton heterophyllus maximus Morong, Mem. Torr. 
Club, a: Part 2, 25 (1893). 
. Potamogeton heterophyllus minimus Morong, Mem. Torr. 
Club, 3: Part 2, 25 (1893). 
. Potamogeton heterophyllus myriophyllus (Robbins) Mo- 
rong, Mem. Torr. Club, 3: Part 2, 24 (1893 
Potamogeton gramineus var. myriaphyltus Robbin i in A. Gray, 
Man. Ed. 5, 487 (1867). 
. Potamogeton Hillii Morong, Coult. Bot. Gaz. 6: 290 (1881). 
. Potamogeton Illinoensis Morong, Coult. Bot. Gaz. 5: 50 
1880). 
: Potamogeton interruptus Kitaibel in Schultes, Oest. de Ed. 
2, 328 (1814 
Pobla galo fiabellatus Bab. Man. Bot. Ed. 3, 324 (ir 
Potamogeton lateralis Morong, Coult. Bot. Gaz. 5: 51 (1880). 
Potamogeton lonchites Tuckerm. Am. Journ. Sci. (IL) 6: 226 
(1848). 
