PLANTS OF NORTH ELBA 1 57 



SELAGINELLACEAE 

 Isoetes echinospora Braunii {Durieu) Engelm. 

 Braun's quillwort 

 Shallow water along the shore of Lake Placid near Whiteface inn. 

 August and September. Discovered there by Prof. N. L. Britton. 



BRYOPHYTA 

 BI0SSE:S AND lilVERMTORTS 



SPHAGNACEAE 

 Sphagnum acutifolium Ehrh. 

 Swamps and marshes. Common. 



S. acutifolium viride Warnst. 

 Tom Peck pond. Mrs E. G. Britton. Green above, faded below. 



S. acutifolium purpureum. Schimp. 

 Averyville swamp. Known by its purplish color and dense head. 



Sphagnum strictum Lindb. 

 S. Girgensohnii Russ. 

 Marshes, wet places and mountains. Near Mud pond. 



S. strictum stachyodes {Russ.') 

 Averyville swamp and top of Mt Mclntyre. Usually densely branched 

 with more or less erect or ascending branches. Sterile. Mrs Britton 

 found fine specimens along the edges of slides on Mt Whiteface. 



Sphagnum Russowii Warnst. 



Marshes and along slides of mountains. In a marsh near Scotts 

 ponds. Varieties virescens Russ. and poecilum Russ. were found on the 

 slope and slides of Mt Whiteface by Mrs Britton. 



Sphagnum quinquefarium {Bmithw.) Warnst. 

 Wet or dripping rocks and cliffs. Rocky hill near Wood farm. It 

 may be recognized by the five-ranked arrangement of the branch leaves. 

 Our specimens are of a green color and are probably referable to variety 

 viride Warnst. 



