VASCULAE PLANTS OP OHIO 137 



Scheuchzeriaceae. Arrow-grass Family. 



83. Triglochin palustris L. Marsh Arrow-grass. Brie, Madison. 



84. Triglochin maritima L. Seaside Arrow-grass. Summit, Stark, 



Clark, Champaign. 



85. Schenchzeria palustris L. Scheuchzeria. Licking, Ashtabula. 



Potamogetonaceae. Pondweed Family. 



86. Potamogeton natans L. Common Floating Pondweed. General. 



87. Potamogeton amplifolius Tuck. Large-leaf Pondweed. "Wayne, 



Stark, Summit, Erie. 



88. Potamogeton epihydrus Raf. Nuttall's Pondweed. Trumbull, 



Wayne. 



89. Potamogeton americanus Cham. & Schl. Longleaf Pondweed. 



Rather general. 



90. Potamogeton heterophyllus Schreb. Variant-leaf Pondweed. 



Ottawa, Erie, Wayne, Stark, Ashtabula. 



91. Potamogeton angustifolius Berch & Presl. Narrowleaf Pond- 



weed. Wayne County. 



92. Potamogeton lucens L. Shining Pondweed. Summit, Cuyahoga, 



Wayne, Erie. 



93. Potamogeton praelongus Wulf. White-stem Pondweed. Ashta- 



bula, Wayne. 



94. Potamogeton perfoliatus L. Clasping-leaf Pondweed. Erie, 



Summit. 



95. Potamogeton compressus L. Eel-grass Pondweed. Perry, Lo- 



gan, Erie, Stark. 



96. Potamogeton hillii Mor. Hill's Pondweed. (Ottawa County- — 



Moseley Herbarium.) 



97. Potamogeton foliosus Raf. Leafy Pondweed. General. 



98. Potamogeton obtusifolius Mert. & Koch. Bluntleaf Pondweed. 



Medina County. 



99. Potamogeton friesii Rupr. Fries' Pondweed. (Erie County— 



Moseley Herbarium.) 



100. Potamogeton pusillus L. Small Pondweed. Erie, Auglaize, 



Fairfield, Perry, Summit. 



101. Potamogeton diversifolius Raf. Rafinesque's Pondweed. Ash- 



tabula, Portage. 



