114 



The Febn Lover's Companion 



and south to Niagara Falls, I^ake Superior and westward. 

 Its southern limits nearly coincide with the northern limits 

 of the Christmas fern. 



THE .MARSH FERN TRIBE 



Under this designation Clute has grouped three of the 

 shield ferns, which ha^•e a close family resemblanc'C, and 

 has thus distinguished them from the wood ferns, which 

 also hclong to the shield fern family. 



(1) The Maksh Ferx 



Aspidium thcli/pteris. Thelyptekis palustkis 



Driioptcris thcli/pteris. Xephrhdiimi thdiiptens 



These are all good names and each one is worthy to be 

 chosen. Aspidiuin, Greek for shield, in use for a century, 

 adopted in all the se\-en editions of Gray's Manual, is still 

 the most familiar and pleasing term to its friends. Dri/op- 

 teris, Greek for oak fern, has liecn chosen by Underwood 



^^^ 



The Marsh P'ern 



