THE LASTREAS 149 
mention in this connection that in the early days of Fern-hunting, 
varieties presenting very trifling differences, such as we now ignore, 
were considered worthy of note and of a name, but as the catalogue 
of thoroughbred and distinct forms increased they became con- 
sidered as mere sub-varieties, and ceased to attract attention. 
The Male Fern is peculiarly liable to “ sport ” into what are termed 
“rogue ” forms, in which some of the fronds are irregularly foliose, 
forked, or depauperated, sometimes assuming, temporarily, so 
marked a character as to deceive even the expert, since when 
removed they always revert more or less to the normal. We are 
strongly of opinion that some of these figure in the old records of 
varieties proper. 
LASTREA FILIX-MAS 
ACROCLADON (Plate XVIIT).—A beautifully crested form, but un- 
fortunately named, аз“ acrocladon” is applied in other cases to much- 
branched, heavy-crested forms to which this does not approach. 




Fig. 159. Z. А m. Barnesii (pinna). 
BARNESII (Fig. 159).—Found in Lancashire by Mr. Barnes; a 
very distinct narrow-fronded form with short, wide pinne, some- 
what on the lines of Pinderit. 
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Fig. 160. Z. f. m. Beeverie, 
BEEVERLE (Fig. 160).—Found near Coniston by Miss Beever ; 
somewhat resembles Pinderii, but more foliose and denser, 

