26 Phillips and Praeger — The Ferns of Ulster. 
Armagh.— Ardmore near Lurgan, and abundant in short grass on the shores 
of Lough Neagh, where it is under water for four winter months, Rev. 
H. W. Lett. 
Derry.— Springhill, Garvagh, Somerset, Mountsandal, and sandhills at 
Magilligan, David Moore. # 
Donegal.— Kilderry, W. E. Hart. Ballyshannon, Carrablagh, Glinsk, Horn 
Head, Brown Hall, and very abundant at Leenane, H. G. Hart. 
Leitrim.— Near the base of Arroo Mountain, Kinlough, R. Barrington and 
R. P. Vowell. 
2. O. X.USITANICUM. Dwarf Adder's Tongue. 
Dry natural pastures. Extremely rare. 
Donegal.— On Horn Head and on Carrigan Head, H. C. Hart. . One of our 
rarest local ferns, whose only known British station— if British it may be 
called — was Guernsey, till Mr. Hart discovered it on Horn Head in 1878. 
The same observer has since found it in Co. Kerry. 
Holywood, Co. Down, 
November 26th, 1886. 
W. H. PHILLIPS. 
R. LLOYD PRAEGER. 
to Aua >8/ 
