No. 14.] FLOWERING PLANTS AND FERNS. 295 



(G. H. Bartlett), Southington (Bissell, Andrews), Plainville 

 (J. N. Bishop), Litchfield (Miss E. H. Thompson), New Mil- 

 ford and Kent (Eames). June — -Aug. 



Myriophyllum scabratum Michx. (roughened). 



Myriophyllum pinnatum BSP., at least in part, possibly 



Potamogeton pinnatum Walt. 

 Water Milfoil. 



Rare. Muddy shores of ponds: Groton and East Lyme 

 ( Graves ) . July — Sept. 



Myriophyllum humile (Raf.) Morong (lowly). 



Myriophyllum ambiguum Nutt., var. limosum Nutt. 

 Water Milfoil. 



Rare to frequent. Borders of ponds and on muddy shores. 

 July — Sept. 



The forma natans (DC.) Fernald (floating), Myriophyl- 

 lum ambiguum Nutt., and the forma capillaceum (Torr.) 

 Fernald (hair-like), Myriophyllum ambiguum Nutt., var. 

 capillaceum Torr., both occur in shallow or deep water of 

 ponds, the latter even in rapid water. 



Myriophyllum tenellum Bigel. (delicate). 



Rare. Muddy shores and in shallow water : New London 

 County (Graves), Litchfield (T. F. Allen), Kent (E. H. 

 Austin & Eames). July — Aug. 



PROSERPINACA L. Mermaid-weed. 



Proserpinaca palustris L. (of marshes). 

 Mermaid-weed. 



Frequent. Borders of ponds and in swamps. July - — Aug. 



ARALIACEAE. GINSENG FAMILY. 



ACANTHOPANAX Dene. & Planch. 



Acanthopanax pentaphyllum (Thunb.) Marchal (five-leaved). 

 Acanthopanax. 



Rare. Hartford, escaped from cultivation to roadside 

 (H. S. Clark & Bissell). July. Adventive from Japan. 



