4i6 



George E. Nichols, 



b. THE ASSOCIATION-COMPLEXES OF WELL-DRAINED LAKES AND 



PONDS 



The plants named in the subjoined list are characteristic of 

 well-drained lakes and ponds in the highland, growing either in 

 the deeper water or in the shallows along the shore. Extended 

 comment seems hardly worth while, since in their local distribu- 

 tion and ecological relations they conform closely with what has 

 been described for similar areas in the lowland. 



Figure 6o. — Shallow pond in mountains north of Barrasois River; 

 aquatic vegetation and narrow marginal fringe of swamp shrubs. 



Sphagnum cuspidatum Torreyi 

 Drcpanocladus Scndtneri 

 Drepanocladus scorpioidcs 

 Fontinalis sp. 

 Isoctcs sp. 



Eqttisetum fluviatile 

 Sparganiiim angustifolittm 

 Potamogeton natans 

 Poiamogeton Oakcsiamis 



Carcx aquatilis 

 Carex filiformis 

 Carcx rostrata 

 Eriocaulon septangnlare 

 Nymphaea variegata 

 Castalia odorata 

 Raminculus Flammula reptans 

 Nymphoides lacunosum 

 Lobelia Dortmanna 



