451 



and many other places near Halifax, Whitby, Richmond, Sec S. Gibson ; Richmond, 

 (R. B. Bowman), //. C. Watson; Whitstoncliff nearThirsk, on the magnesiau lime- 

 stone at Tliorpe-avch and other places ; I believe that angulare is a variety of lobalura 

 and not of aculeatum (J. Backhouse jun.), R. Spruce. 



Poli/stichum lobatum. Scarce in the Sheffield district, more common near Doncas- 

 ter, /. Ilardif ; in all the woods in the neighbourhood of Hebden-bridge, S. Gibson ; 

 woods near Halifax (R. Leyland), a little below Catterick-force (J. Tatham), H. C. 

 Watson; frequent in the stony woods about Castle-Howard, Thorpe-arch and Tad- 

 caster, on the magnesian limestone (J. Backhouse, jun.), R. Spruce ; near Settle (J. 

 Tatham), »S'. Thompson. 



Polystichura Lonchitis. Sparingly on the rocks above Settle, at an elevation of 

 1500 feet, /. Tatham, S. Gibson ; Attermire-scar above Settle (J. Tatham), no fmit, 

 I suspect this at least to be a young A. lobatum, H. C. Watson ; Settle (J. Tatham), 

 S. Thompson, who sends a frond, which appears to me to be the seedling, or perhaps, 

 more properly speaking, the alpine form of acul ;atura, E. ISeivman ; near Malham, 

 W. Wilson. 



Lastrffia Thelypteris. Potterie-carr, rare, J. Hardy ; near York, in two or three lo- 

 calities. S. Gibson ; abundant in Askham-bogs and Heslington-fields near York, fruc- 

 tifying in both places ; Terrington-carr, amongst Bryum squarrosum and Hypnum 

 nitens, H.lbbotson; near Copgrove, near Doncaster, near Hovingham, near Settle, 

 Baines's Yorkshire Flora. 



Lastraea Oreopteris. Very common in the Sheffield district, J. Hardy ; abundant 

 above Swabeck, J. Tatham ; very frequent in woods about Halifax (R. Leyland), H. 

 C. Watson ; frequent on the north-eastern moors, Castle-Howard park (very fine), 

 wood near Earswick and Langwith-lane near York (J. Backhouse jun.), R. Spruce. 



Lastraea Filix-mas. Abundant in the Sheffield district, /. Hardy ; very common 

 near York, R. Spruce, S. Thompson. 



f Lastraea cristata. On Plumpton-rocks near Knaresborough, Haines's Yorkshire 

 Flora. There is at present no other information about this species, E.Newman. 



Lastraea rigida. Wharnside and Ingleborough, W. Wilson; on the rocks above 

 Settle, at an elevation of 1500 feet, J. Tatham ; Attermire- rocks and other places in 

 the neighbourhood of Settle, S. Gibson, (J. Backhouse, jun.), R. Spruce; Clay-pit 

 scar above Settle (J. Tatham), H. C. Watson ; first gathered in 1815 on Ingleborough, 

 near the foot of the mountain, towards the neighbouring village (W. T. Bree), New- 

 man'' s British Ferns. 



Lastraea dilatata. Abundant and very variable in the Sheffield district, J. Hardy; 

 common in all the lanes and woods about Hebden-bridge &c. in endless variety, S. 

 Gibson ; very frequent near Halifax (R. Leyland), Black forest, Richmond (Rev. J. 

 E. Leefe), both these appear to me very near spinulosa, //. C. Watson; the commonest 

 fern in wet woods at Castle-Howard, Stockton forest, Leckby-carr &c. (J. Backhouse, 

 jun.), R. Spruce ; near York, S. Thompson. 



Lastraea spinulosa. Spinulosa i* Potterie-carr near Doncaster, /. Hardy ; Scar- 

 borough-mere, S. Gibson ; bog near Rufforth-grange, Langwith, Stockton-forest, 

 Thornemoor, Leckby-carr &c. (J. Backhouse jun.), R. Spruce; near York, a singular 

 variety is found at Thorne-moor, S. Thompson. 



Lastrcea dumetorum. In stony places in Castle-Howard park, R. Spruce. 



Athyrium Filix-femina. Abundant in the Sheffield district, /. Hardy ; in endless 

 variety in many places, S. Gibson ; shady banks near York, fre(iuent, Langwith, S. 

 Thompson, R. Spruce. 



