8 



THE FERN BULLETIN 



the much broader primary pinnae which bear second- 

 ary pinnae that are themselves nearly twice pinnate, 

 giving the frond a lace-like effect hard to describe. 



The frond from which the description was drawn 

 was found by H. W. Merrill nearly four years ago at 



DlCKSONIA PILOSIUSCULA F. POYSERI. 



Hiram, Maine. It is now in the herbarium of Mr. W. 

 A. Poyser for whom I take pleasure in naming it 

 Dicksonia pilosiuscula f. Poyseri. So long as the 

 most stable thing about fern nomenclature is its in- 

 stability it may be well to mention that those who do 

 not fancy the name here given may call the fern D. 

 punctilobula Poyseri or Dennstaedtia punctilobula 

 Poyseri. It is all the same in the long run. 



