4 6 BRITISH FERNS. — SUB-ORDER II. TRIBE 8. 
in the latter locality, growing in the shade of huge plants of W ood- 
wardia radicans that were on the sides of the railway. It is a 
linear-acute, caudate form. 
2. alcicorne, Lowe. Raised by myself. 6x2 inches, the upper 
part branching like stags’ horns. 
3. angustatum, Lowe. Found in the Burren, County Clare, by 
Mr. P. B. O’Kelly. It is an acutum-form, but the fronds are 
narrower and longer than in acutum. 
4. caudifolium, Moore. Found by Mr. Druery on a stone wall 
on Dartmoor. A singular form, the frond and pinnae terminating 
in long tail-like ends. The lobes are blunt and yellowish. 
*5. Cowperi, L.owe (grandiceps, Wollaston). Found in 1865 at 
Ilfracombe by Mr. Richard A. Thompson. It is a grandiceps, 
differing from the Irish form in having more pinnae below the 
capitate head, in the segments being narrower, and in not being 
confluent in the basal pinnae. The branching head is larger (4A- 
inches wide), and its base not conspicuously cuneate as in grandi- 
ceps. Length, 8 inches. 
6. cristatum. I have not seen this. 
7. flabellatum, Lowe. Raised by Messrs. Stansfield. Distinctly 
flabellate, and 
branching near 
the apex. 
*8. grandi- 
ceps, Lowe. 
Found in 1865, 
in Waterford, 
by the Rev. 
Travers Smith; 
4^X2 inches. 
Dead, 3 inches 
wide. A very 
handsome va- 
riety, having a 
large compact 
head which is 
cuneate at the 
base. The pe- 
culiar fan- 
shaped pinnae 
and capitate 
head cause it 
to be very dis- 
tinct. There 
are only two or 
three pairs of 
pinnae below 
where the stem 
Fig. 17. — Asplenium Adiantum-nigrum, var. grandiceps branches ; and 
showing capitate head). below the point 
