182 BRITISH FERNS, 
Maam, Roundstone and Oughterard. In Wicklow, on 
many of the rocky hills and waterfalls, at Glendalough, 
Hermitage Glen and Powerscourt Waterfall; in Kerry, 
on rocks and on trees, ascending to their very summits, 
among the Kerry mountains, and at all the waterfalls 
about Killarney; also in Valentia Island; in Cork, it 
is abundant in the glens near Youghal. 
In cultivation, Unilaterale may be managed exactly 
as Tunbridgense, except that it delights in frequent 
syringings, under which Tunbridgense is apt to die, 
47. FLOWERING FERN. OsMUNDA REGALIS. 
Osmunda regalis, Linneus, B, F. 307, 310, 
The rootlets are strong and fibrous; the caudex is 
tufted and very large, as might be anticipated from 
above the surface of the ground, exhibiting an appear- 
ance somewhat like that of the tree ferns: I possess a 
living caudex of this fern that was found at West 
Hoathly, the upper part of which is naturally coated 
with the Tunbridge Filmy Fern. The young fronds, 
appearance in May, arrive at maturity in August, and 
are destroyed by the first frosts of winter ; 
