POLYrODIVM VLLGARE. 33 



Cambricum, WiUdenoic. (Fig. 13.) — This splendid Fern 

 was originally found in AVales, and named the AVelsh Polypodr, 

 and recently in a wood near Macclesfield. Mr. Joseph 

 Sidebotham, of ^lanchester, has found it at Mill Dingle, 

 Beaumaris, Conway Castle, Troutbeck, near Ambleside, and 

 at Flenarim, Antrim, Ireland. It has long been known as 

 a British gem, and is quite constant and true in its character. 

 Cambricum has a much denser growth, is somewhat ovate- 

 oblong in form, and is throughout bipinnatifid. The lobes 

 are narrow near the rachis, become wide in the centre, and 

 narrowing again to a pointed apex; they are crowded together 

 so as to overwrap each other, except at the base and apex 

 (of the lobes.) The margin is deeply cut into narrow, 

 pointed, serrated lobules, with the exception of their base 

 and apex. This beautiful species is always barren. Under 

 pot culture, as an exhibition plant, it can scarcely be 

 surpassed. 



CoMPOsiTiM, Wollaston. (Fig. l-i.) — Found by Mr. Elworthy, 

 near Xettlecombe, and by Mr. Clowes, near Windermere. It 

 is difficvJt to describe Compositum, as it rarely produces two 

 fronds alike. A very interesting Fern, combining the variations 

 peculiar to Auritum, Bifidum, Smuatum, Serratum, and 

 Semilacerum. It is smaller than the normal species. Often 

 on the same fiond there will be a combination of several 

 varieties, and always on the same plant; that is, some will be 

 more or less sinuate, and others more or less bifid or serrate- 

 It inclines more to Sinuatum than to Bijidum or Serratum. 



