I36 THE FLORA OF HALIFAX. 



Norland ; and in a little wood called Toad 

 Holes, in Sowerby Dean. — J. Bolton ; Fil. Brit. 



Burnt-brow Clough in Shibden, &c. — Herb. Leyl. 

 1840. Near Ripponden ; Broadbottom, Wads- 

 worth. — Herb. S.K. 



1867. Very fine in a deep clough at Upper Shib- 

 den — J.W. 



Very rare, in woods and doughs : Ogden, Crims- 

 worth Dean, Hardcastle Crags. 



Polystichum angulare, Presl. — 63. (Aspidium). Shield Fern. 

 Native. English type. P. July-August. 



1840. Mill House Clough, Luddenden ; Midgley Scout ; 

 Shibden — -Herb. S.K. Beestones. — Herb. Leyland. 



1840. Near Elland ; Beestones Wood (W. Lord) ; plentiful 

 at top of Shibden dale ; Luddenden (S. King) — MialVs Fl. 



1862. — Nurserymen's varieties from Shibden and Beestones 

 Wood, Stainland, named by T. Stansjield in MialVs Fl. 



1867. In the same locality as P. acideatum, where many in- 

 teresting forms may be met with. — /. Walker. 



Very rare, in woods : Crimsworth Dean, nearly exterminated. 

 (J. Needham). To a careless observer, the Halifax cloughs 

 may seem to be as rich in ferns as they ever could have 

 been, but the irresistible propensity to lift a fern, if it has a 

 marketable value, has played havoc in their ranks. Each 

 page tells the same tale — the nurserymen's favourites are 

 now all but exterminated. Nor can botanical societies be 

 altogether exonerated. 



\Lastrcea Thelypteris, Presl. — 43. Error. 

 Bolton's Acrostichum thelypteris of 1775, and Polypodium thelyp- 

 teris of 1785 are the next species (q.v.) as Newman pointed 

 out : — " Bolton made a somewhat similar mistake by 

 figuring Lastvcea Oveoptevis in its stead ( ' Fil.' tab. 22) ; 

 but this he subsequently rectified by repeating the species 

 under its proper name {Id. tab. 43)" — Brit. Ferns, 124. In 

 addition to the erroneous figure of L. Thelypteris in " Eng- 

 lish Botany," mentioned by Newman, S. Goodenough, the 

 botanical Bishop of Carlisle, fell into exactly the same 

 mistake as Bolton. In a letter of his in the " Memoir of 

 Sir J. E. Smith " (Vol. I, p. 540) he writes: — " I always 

 thought we found P. Thelypteris near Bury ; but by your 

 list that is Oreopteris." ] 



