21 
Phillips and Praeger — The Ferns of Ulster . 
anomalum ineequale. Newcastle, Go. Down, E. LI. P. 
anomalum multi fid um. 
anomalum trlnervium. 
bifidum. 
On mountains near Newcastle, Co. Downj 
W. H. P. 
caudatum. 
crlspatum. 
crlstatum. 
cruclatum. 
/ 
crenatum. Drumseugh, Co. Antrim, W. H. P. 
foliosum. Rostrevor, Go. Down, W. H. P. 
heteropbyllum. Glenarm Deerpark, Go. Antrim, R. LI. P. 
multifidum. Holywood Hills, and Dundonald, Co. Down, R. LI. P. 
ramosum. Newcastle, Co. Down, R. LI. P. 
serratum. Holywood Hills, Co. Down, R. LI. P. 
strictum. Bloody Bridge near Newcastle, Co. Down; and Strabane Glen, 
Co. Tyrone, W. H. P. 
trlnervium. This striking variety occurs abundantly at the Newcastle ond 
of the Mourne Mountains, where it was first observed by W. H. P. in 
1876, and where it forms a peculiar feature of the local flora. The fronds 
are shaped like a cross-handled sword, owing to the extraordinary develop- 
ment of the lowest pair of lobes, which sometimes measure three to four 
inches across. 
undulosum Praeger ( Wollaston ). Craigauntlet, Co. Down, R. LI. P. 
The Mourne Mountains are very rich in varieties of Blechnum, as the above 
list shows. 
A comparatively lowland species, rarely ascending so high as 1,000 feet 
on the mountains. 
multifidum. Kilmore, Co. Down, S. A. Stewart. 
varlegatum. Killeen near Sydenham, Co. Down, A. Robertson. Coleraine, 
Co. Derry, Rev. Robert Kyle. In Glenariff, Co. Antrim, and near Castle- 
rock, Co. Derry, R. LI. P. An extremely rare variety. 
10. PTERIS. 
1. P. AQUIIINA. 
Woods, heaths, and wastes. 
Brakes or Bracken. 
Very common. 
