190 MARSILACEjE. 



at Carngaver Hill above Holy wood ; S.A.S. Carrowreagli 

 Hill, and at Craigauntlet ; E,.L1.P. 



Antrim — Meadow about 200 yards north of the second lock of Lagan 

 canal, also by the stream below Hannahstown, and on Knock- 

 layd ; Templeton, 1802. Roughfort ; Moore's N. P. Ferns. 

 Belfast hill range ; Flor. Belf. East side of Cave Hill below 

 the caves, also above "Wolfhill, and on the Knockagh, and in 

 Altmore Glen near Cushendall ; Flor. Ulst. By the Main 

 Eiver below Randalstown, 1S63, and on Squires Hill near 

 Belfast, 1881 ; B.N.F.C. In the hollow between Divis and 

 Black Mountain, also south side of Cave Hill ; S.A.S. Shore 

 at Cushendun, and on Carnaneigh, and Crosslieve near 

 Cushendall; R.Ll.P. Near Kells ; D. Redmond. 



Derry — Frequent along the basaltic range of hills ; D.M. Magilligan ; 

 Flor. Hib. Benbradagh at 1200 feet ; S.A.S. 



OPHZOGXiOSSUnx Linn. Adder's-tongue. 



1. O. vulg-atum Linn. 

 Pastures and meadows — frequent. 

 Down — Plentiful in meadows near the old abbey at Greyabbey, 1864, 



and in Mountstewart grounds, 1877 ; B.N.F.C. Killinchy ; 



Jas. Wilson. Field near Cultra ; Roht. Patterson. 

 Antrim— Field north of second lock Lagan canal ; Templeton, 1806. 



Banks of Lagan three miles above Belfast ; Newman. Shane's 



Castle, 1863, and Cave Hill, 1871 ; B.N.F.C. Whitehead; 



G. C. Eyndman. By the Blackstaff River north and west of 



Malone Cemetery ; Flor. Ulst. Wolfhill, and Knockagh ; 



IF. Millen. Springfield ; W. H. Phillips. Colin Glen, and 



Rathlin ; S.A.S. Abundant in some fields at Cairncastle ; 



R.Ll.P. Birch Hill near Antrim ; Rev. W. S. Smith. 

 Derry — Springhill, Garvagh, Somerset, Mountsandys, and damp sandy 



warrens at Magilligan ; D.M. 



SERIES II. Order III. MARSZIiACEJE. 



PZZiUZiARZA Linn. Pillwort. 



1. P. grlobulifera Linn, 



In ditches, and by rivers and lakes — extremely rare. Fl. June^Aug. 

 {Ci/b. Eib.), 



