VASCULAR PLANTS OF OHIO 137 



Scheuchzeriaceae. Arrow-grass Family. 



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



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



Clark, Champaign. 



85. Scheuchzeria 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. & Sclil. 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- 



Inila, 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. Rafinesquo's Pondweed. Ash- 



tabula, Portage. 



