DUBLIN NATURAL HISTORY SOCIETY. 
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Dublin: for the Lowlands — Polystichumangulare, Bcolopendrium vul¬ 
gare, Dryopteris affinis, Asplenium trichomanes. For the Highlands and 
Bogs—Lophodium multiflorum , Athyrium filix fcemina, Dryopteris Bor¬ 
reri, Dryopteris affinis, Lomaria spicant, Asplenium adiantum-nigrum. 
Kildare : Lowlands—Poly stichum aculeatum, Poly stichum angula/tx, 
Scolopendrium vulgare, Lophodium multiflorum, Dryopteris affinis, Athy¬ 
rium filix fcemina. 
Tyrone : Highlands—Athyrium filix fcemina, Lophodium Foenesecii, 
Lophodium multiflorum , Hymenophyllum unilaterale. Lowlands — Poly- 
stichum aculeatum, Dryopteris Borreri, Dryopteris affinis. 
♦Clare and Galway : Lowlands—Poly stichum aculeatum, Poly stichum 
angular e, Poly podium vulgare, Athyrium filix fcemina, Amesium rut a 
muraria, Grammitis ceterach, Lophodium Foenesecii, Asplenium adian¬ 
tum-nigrum. Highlands and Bogs—Lomaria spicant, Lastrea montana, 
Loph. multiflora, Asplenium trichomanes, Cystopteris fragilis, Osmunda 
regalis, Hymenophyllum Tunbridgense, Poly podium vulgare. 
Kerry : Lowlands — Polypodium vulgare, Polystichum angulare, Loph. 
Foenesecii, Dryopteris affinis, Dryopteris Borreri. Highlands and Bogs — 
Osmunda regalis, Hymenophyllum Tunbridgense, Hym. unilaterale, Tricho¬ 
manes radicans, Hemestheum phegopteris, Polystichum angulare, Asple¬ 
nium acutum. 
Waterford and Cork: Lowlands-— Scolopendrium vulgare, Polystichum 
angulare, Grammitis ceterach, Asplenium adiantum nigrum, Polypodium 
vulgare, Lophodium multiflorum. Highlands and Bogs—Lophodium Fce- 
nesecii, Dryopteris affinis, Hymenophyllum Tunbridgense, Osmunda regalis. 
Besides these, in the following districts ferns of local distribution 
occur, but not abundantly enough to impress a general character on the 
Mora:— 
In Kerry : Asplenium acutum and viride, and Adiantum capillus- Ve¬ 
neris. Cork: Asplenium lanceolatum, Trichomanes radicans. Waterford: 
Trichomanes radicans, Lophodium spinosum. Tipperary : Lophodium 
spinosum. Wicklow : Trichomanes radicans, Hemestheum phegopteris. 
Of the Irish species, all, except Asplenium acutum, have occurred in 
England, but many grow more abundantly and luxuriantly in Ireland ; 
while, as has been already shown, many of the British species are un¬ 
known in Ireland. These latter, we are justified in surmising, are either 
Germanic or Boreal types, as many of them on the coasts of Wales and 
Scotland are found flourishing in stations identical with some on this 
side of the channel, the narrow strait which severs the two islands 
alone dividing them, and the missing species so hardy in their habits, as, 
once introduced into this country, to have been able to stand the ordeal 
of our mildest winters and severest springs. 
I would be inclined to look on such ferns as Cryptogramma crisp a, As¬ 
plenium viride, and Cystopteris fragilis, as northern species, owing to their 
occurring rarely, or comparatively so, in this country as compared with 
England and Scotland; the first having probably been introduced into 
this island from England shortly previous to the severance of the coun¬ 
tries, and having since then, owing to the change of climate, barely 
