FERNS OF THE LAKE GEORGE FLoRA—IV 59 
The form NEMoRosuM (A. Br.) Klinge, at Hague in 
woods. 
The form rrpartuM (Fries) Klinge, in alluvial sand, 
north bank of Halfway brook, east of Tripoli. De- 
termined by A. A. Eaton, Dec. 1900. 
EQUuISETUM SYLVATICUM L. 
Moist shady places; frequent. May 
The fertile stems usually bear a few branches and are 
later quite similar to the sterile ones which appear in 
early summer. 
EQUISETUM PALUSTRE L. 
Very rare. Fort Edward: a specimen was found in 
the Dr. E. C. Howe herbarium labeled as E. pratense 
Ehbrh. 
EQuISETUM FLUVIATILE L. 
Shallow water and alluvial soil: infrequent. May- 
June. Although not common it is distributed from 
Lake George to Shushan. 
The stems of this species are often unbranched: but 
Plants bearing more or less verticillate branches, the 
form verticiLLATUM Doell. occurs near Tripoli and at 
Vaughns. 
Equiserum HYEMALE L. 
Steep ravine banks, more often in sandy soil: some- 
times persisting in old meadows; frequent but rather 
local. April 20-June. 
Variable. The stems usually unbranched and are 
evergreen. Small bundles of the stems are used for 
Scouring floors, tables, ete. This species is also found 
on dry railroad embankments. 
ur common variety is affine (Eng.) A. A. Eaton: 
but the branching form ramosum A. A. Eaton of this 
variety sometimes occurs. 
