PLANTS OF NORTH ELBA 137 



Potamogeton perfoliatus L. 



Clasping leaved pondweed 

 Ausable river near the Notch house. July. 



Potamogeton praelongus Widf. 

 Long stemmed pondweed. White stemmed pondweed 

 Lake Placid. July. It was found growing in water 6 to lo feet deep. 



^ERIOCAULEAE 



Eriocaulon septangulare With. 



Seven angled pipewort 



Shallow water and shores of lakes and streams. Lake Placid and 

 Mirror lake. July and August. The scapes vary from 2 inches to 2 

 feet in length. When growing in water their length depends on the 

 depth of the water. 



CYPERACEAE 



Dulichium arundinaceum (Z.) Britton 

 D. spathaceum Pers. 

 Dulichium 

 Wet places, shores and shallow water. Common. July and August, 



Eleocharis palustris (Z.) R. &= S. 

 Spike rush. Creeping spike rush 

 Wet places and shallow water. Lake Placid, Mirror lake and New- 

 man farm. August. 



Eleocharis ovata {Roth) R. ^ S. 

 Ovoid Spike rush 

 Wet places. John Brown farm. July and August. 



Scirpus caespitosus L. 



Tufted club rush 



Top of Mt Mclntyre and Mt Wright and in a marshy place west of 

 Mt Wallface. In flower in June, in fruit in July and August. 



Scirpus atrovirens Muhl. 

 Dark green bulrush 

 Moist ground and wet places. Common. July. 



