DXTBUN VATTHUL HI8T0ET 80CIBTT. 97 



history and distribution are matters of great interest. A careful exa- 

 mination of the three localities noted above, viz., Waterford, Killamey, 

 and Valentia, have convinced me that the form called " AndrewsiC* 

 after its discoverer, to whom also is due the identification of this plant 

 with radicans of Swartz, is the normal form of the plant ; the form 

 which occurs at Killamey, and by which the plant is best known, having 

 been drawn up by moisture, by which the parenchymatous portions of 

 the plants are developed at the expense of the fructification. The plants 

 at Waterford fruit freely, and are scarcely distinguishable from An- 

 drewsiif but under cultivation many of them pass into the ordinary 

 Killamey form. 



Hymenophyllum Tunhridgmse, Tunbridge Filmy Fern. 



Clare : Monounta, Feakle, abundant on bare cliff, 500 feet high, 

 J. R. K Tipperary : Morgan's Glen, E. H. Sargint, Esq., mixed with 

 next, q. v. Kerry : Valentia Island, rocks over Glenleavey woods, cliffs 

 near slate quarries, sparingly; Killamey, abundant. Waterford: 

 Glandine, sparingly ; Portlaw ; Curraghmore wood, abundant and fine, 

 J.RK. 



This species has been confounded with the next ; thus the stations 

 given by authors at Glencree and the Waterfall, county of Wicklow, refer 

 to next. I have never seen authentic specimens of this species except 

 from the south and west 



Hymenophyllum unilaterale ( Wild). Wilson's Filmy Fern. 



Tyrone : Gortin Gap, abundant among rocks, 1857, J. R. K. " Tip- 

 perary : Morgan's Glen, E. H. Sargint, Esq.," q. v. Kerry : Valentia 

 Island, near slate quarries, common. Killamey : very common, J. R. K. 

 *' Dublin: Kelly's Glen, W. Andrews, Esq." Wicklow: Waterfall, 

 very abundant. Glencree : Greater Sugarloaf, scarce, J. R. K. 



This species is most commonly diffused in the east and north, but 

 grows more luxuriantly at Killamey than anywhere else that I have 

 seen it. 



The following Irish species have been recorded, and authentic spe- 

 cimens of them have been shown to me, but I have never been fortunate 

 enough to meet them myself : — 



Adiantum capillm- Veneris {Linn.). Maidenhair. 



** Leitrim : Glencar," Right Hon. J. Wynne, vide '* Natural History 

 Review," page 69, vol. iv. Kerry: "Tralee, W. Andrews, Esq.,^' 

 q.v. "Galway: Urrisbeg," W. M*CaUa. "Clare: Ballyvaughan." 



Polystichum lonchitit {Linn.). Holly Fern. 

 " Sligo : Benbulben," q. v, " Kerry : Brandon." 

 Hemestheum Tkelypteris {Linn, »p.). 

 "Kerry: Killamey, Mncmss Demesne." Professor R. W. Smith, 

 M. D., showed me an extensive living series of this plant from this, 

 Mackay's original station, in 1856. " Mayo and Antrim." 



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