477 



vicly ucutum of Francis occurs at Sale, six miles iVom Manchester, J. B. Wood : ge- 

 nerally distributed near MaucLester, but not common ; the var. acutum found growing 

 with its common state, /. Sidebotham. 



Polypodium Phegopteris. Dulesgate, near Todmorden, .S'. Gibson : near Lancas- 

 ter, beyond the Asylum ; Dean-church clough, near Bolton (John Martin), W. Wil- 

 son : Fox-clough, nearColne; Padiham-brook, near Whalley ; Old Man mountain, 

 G. Pinder : Mere-clough, Cotteril-clough, J. Sidebotham : near Lancaster, S. Simpson: 

 common near Coniston, M, Becver ; this is not an uncommon species in the neigh- 

 bourhood of Manchester, being found in several of our woods, as Mere-clough, Phil- 

 lip's wood, near Prestwick, Boghart-hole clough, generally very tine and luxuriant, /. 

 B, Wood. 



Polypodinm Dryopteris. Broad-bank, near Colne ; Mr. Francis observes that the 

 sori remain perfectly distinct, but I have found them confluent, "S. Gibson : Dean-church 

 clough (John Martin), W. Wilson : Marsden near Colne, and Padiham-brook, G. 

 Pinder : Mere-clough and C!otteril-clough, /. Sidebotham : near Lancaster, »S. Simp- 

 son : common near Coniston, M. Beever : more rare than P. Phegopteris, although 

 found in three or four localities, as Mere-clough, Ashvvortli-wood &c., /. B. Wood.— 

 Var. rigidum, mihi : Broad-bank, near Colne : this variety is sometimes taken for P. 

 calcareum, S. Gibson. 



Polypodium calcareum. Broad-bank and Sheden- clough. Mr. Francis has incor- 

 rectly given my name as an authority for this species being found near Lancaster; and 

 in Mr. Watson's ' Notes on the Geographical Distribution of British Ferns,' this spe- 

 cies is said to affect lime rocks, but the Lancashire localities are on the gravel which 

 overlies the coal-formation, and it therefore cannot be said to be a limestone plant, »S'. 

 Gibson : near Lancaster ( — Gibson to R. B. Bowman),* Sheden-clough, three miles 

 from Burnley (R. Leyland to Jas. Macnab), H. C. Watson. 



Cystopteris fragilis. Broad-bank, .S'. Gibson : Wycottar-hall, walls near Colne 

 and Clitheroe, G. Pinder : rare near Coniston, occasionally met with on the Old Man 

 mountain, and the adjoining fells, more plentifully about the slate-quarries in Tibber- 

 thwaite, where it has the character of C. angustata, M. Beever : near Lancaster, .S'. 

 Simpson. 



Cystopteris dentata. Broad-bank, S. Gibson : Lymm-eye lock, between Warring- 

 ton and Manchester, W. Wilson. 



Cystopteris angustata. Cliviger, S. Gibson. 



Cystopteris alpina. Ditto. C. regia. Broad-bank. All these forms of Cystopteris 

 are common in the neighbourhood of Burnley, together with others perhaps quite as 

 distinct : how far they may be considered species, I leave to the better judgment of 

 others ; S. Gibson. 



Polystichum aculeatum. Sheden-clough, near Todmorden, (S*. Gibson : Fearn- 

 head, near Warrington ; Newton, W. Wilson. 



Polystichum angulare. Marple-wood, /. Sidebotham ; rare near Coniston, M. 

 Becver. 



Polystichum lobatum. Burton-wood &c. near Warrington, W. Wilson, Hough- 

 end-clough, not common, /. Sidebotham : margin of Black-beck and above Brantwood; 



* The discrepancy complained of by Mr. Gibson again occurs ; I imagine the Mr. 

 Gibson referred to by Mr. Francis, and again by Mr. Watson, is not Mr. S. Gibson of 

 Hebden Bridge. 



