Nichols: The vegetation of Connecticut 



261 



A splenium Filix-femina 

 Onoclea sensibilis 

 Leersia virginica 

 Muhlenhergia mexicana 

 Cinna arundinacea 

 Bronms altissimus 

 Elymus canadensis 

 Pilea pumila 

 Boehmeria cylindrica 



Impatiens hiflora 

 Viola cucullata 

 Circaea lutetiana 

 Verbena hastata 

 Enpatoriitm purpureuni 

 Eupatorium iirticaefoUnm 

 Solidago serotina 

 Aster paniculatus 

 Helenium autiimnale 



Thalictrum polygamum 

 Flood Plain Associations along Other Streams. — The conditions 

 described in the preceding paragraphs are found not only along the 

 Connecticut, but also along the Housatonic and to a considerable 



Fig. ii. Cat-tail (Typha lalifolia) marsh along Muddy River, North Haven. 

 In the background is a flood plain forest of elm, pin oak, etc. 



extent along others of the larger rivers. But even along these 

 rivers, there is a more or less noticeable variation in the aspect of 

 flood plain associations, while along the smaller streams the de- 

 parture from the described conditions may be very pronounced. 

 On gravelly or stony flood plains, such as occur along swift streams, 

 the pioneer forms of vegetation may be scraggly willows, alders 



