180 BRITISH FERNS 



of these ; one and the same frond may display all three types of 

 cutting ; the spores invariably yield the same inconstant form. 



C. foliosum. — Raised by Mr. Clapham ; shows mainly the inter- 

 mediate type on somewhat leafier lines. 



C. plumosum. — Raised by Mr. Barnes ; has broader and leafier 

 fronds, but finely cut. 



C. trichomanoides. — In this, we believe by constant suppression 

 of the normal fronds, an almost constant form has been arrived at 

 by Messrs. Backhouse, of York, only showing the finest -cut type 

 with very little reversion ; very beautiful. 



Crenatum (Fig. 203). — Found in several places ; a wide-fronded 

 form, the subdivisions being bluntly toothed. 



Cristatum (Plate XXV and Appendix No. XLVII). — Found in 

 Ireland by Mr. H. S. Perry and others ; a very prettily tasselled 

 form. 



C. Morleyii. — Similar to cristatum, but less markedly tasselled. 



Elegantissimum. — See Cornubiense. 



Glomeratum. — Found in Dorset by Mr. Mullins ; a curious, 

 ramose, and subcristate form, no two fronds alike, but no reversion 

 to normal. 



Grandiceps Forster, g. Fox (see Appendix Nos. XLII and 

 XLVII). — The finest forms of cristatum, heavy bunch crests, but 

 distinct. 



G. Parker. — Found in Somerset by Mr. Parker ; a splendid form, 

 bearing heavy, much-branched heads on almost bare stalks, with 

 the tips of the cresting prettily crisped ; the finest crested form 

 of all. 



Hutchisonii. — Reported as found by Mr. Hutchison in Wales, 

 but its history is obscure, and as it is so exact a replica of Cornu- 

 biense in all respects, we are inclined to doubt its wild origin. 



Longipinnatum. — Found by writer at Killarney ; very long and 

 narrow pinnae, fronds consequently very wide, six inches and 

 more. 



Macrosorum. — A very fine deltoid form, with very long and 

 pinnatifid basal pinnae, the rest serrate, sori extra profuse and 

 conspicuous ; found by writer at Minehead. 



Macrostachyon. — Found in Ireland by Mr. O'Kelly ; fronds 

 have wide lateral lobes, and terminate with a very wide and large 

 one set on end, forming a broad caudate tip. 



