52 NEW YORK STATE MUSEUM 



Polypodium vulgare L. 

 Common polypody 

 On rocks and rocky banks. Common. Found occasionally in 

 swamps on trunks of trees. June-October. 



EQUISETACEAE 



Equisetum arvense L. 

 Field horsetail 

 Along railways and roadsides. Common. May. 



Equisetum sylvaticum T.. 

 Wood horsetail 

 Moist woods. Common. May. 



Equisetum fluviatile L. 

 E. limosum L. 

 Swamp horsetail 

 River shores. Common. May-June. 



Equisetum hyemale L. 

 Scouring rush 

 Wet places and on banks. Frequent. May-June. 



LYCOPODIACEAE 

 Lyeopodium lucidulum Michx. 

 Shining club moss 

 In damp hemlock woods. Common. August-October. 



Lyeopodium obscurum L. 

 Ground pine 

 Moist woods. Common. July- September. 



Lyeopodium annotinum L. 

 Stiff club moss 

 In a thicket near Apalachin. Rare. September-Noveml>er. 



Lyeopodium elavatum L. 

 Running pine. Club moss 

 Found in thickets, open woods and along bushy roadsides. 

 Common. August-October. 



Lyeopodium complanatum L. 

 Trailing Christmas gixen 

 Thickets, open woods, specially in groves of young coniferous 

 trees. Common. Autumn. 



