372 FiLiCES. \Polystichum. 



1. Moist rocks in " Horses' Glen," Mangerton; I. C. On 

 Brandon mountain, Kerry ; D. M. — (7.) A single root near 

 Edgeworthstown, Longford; Mr. Edgeuoorth. — 9. On Ben 

 Bulben ! and other mountains in Sligo ; and on Glenade 

 mountain, Leitrim ; Prof. JE. Murphy. In Sligo and Leitrim, 

 but rare ; Mr. J. Wynne — (10.) A single root on a hedgebank 

 near Dungannon, Tyrone ! Bev. H. Stokes. — 11, In a glen east 

 of Lough Eske, Donegal; Prof. E. Murphy. Rosses and 

 Fanet ; D. M. 



The two isolated plants found in Tyrone and Longford, at 

 an unusually low elevation, had probably sprung from spores 

 wafted from the Ben Bulben group of mountains ; and as their 

 occurrence in the lowlands seems quite exceptional, we have 

 included these districts within brackets, although there is 

 no doubt as to the species. "We fear, however, to trust 

 the locality of " Navan in Meath," which is given in Moore's 

 Nature-printed British Ferns. And although P. Lonchitis, as 

 well as Cryptogramme crispa, is reported from Black Head, 

 Clare, we prefer to leave this locality for future confirmation. 



Ranges from about 120 feet in Tyrone to 2500 on Brandon. 



2. p. aculeatum (Roth) — Stiff Prickly Fern. 

 Aspidium aculeatum and Aspidium lohatum of many authors. 

 Districts 12-456789 10 11 12 

 Lat. 51°-56°- From South to North of Ireland. 

 Type in Great Britain, British. 



Banks and stony places ; rather local, and not common. 

 Fl. July to October. 



Far less frequent in Ireland than P. angulare. The form 

 A. lobatum (Smith) is rare. The variety or form lonchitidioides 

 is recorded as having been found by Mr. F. J. Foot in Clare 

 and at Aughrim, Galway. 



3. p. angulare (Newman.) — Soft Prickly Fern. 

 Aspidium angulare (Willd.), Brit. Flor., A. aculeatum var. 



Bentham. 

 Districts 1 2 3 4 5 6 7 8 9 10 11 12 

 Lat. 51°-56°. Throughout Ireland 

 Type in Great Britain, English. 



