ELATINACE^, 19 



Var. |3 P. SERPYLLACEJL Weihe. 

 On stony or gravelly heaths — the common form on the hills. 

 Down — Castlereagh Hill, also peaty and gravelly shores of Derry Lake, 

 and Long Lake near Ballynahinch ; S.A.S. Slieve Martin in 

 Mourne Mountains; Hart, Proc. R.I.A., 1884. 

 Antrim— Clough ; Cyb. Hib. SaUagh Braes ; T.H.C. Cam Hill, Black 

 Mountain, and Divis, also Rathlin ; S.A.S. Tannaghmore 

 near Antrim ; D. Redmond. 

 Derry — Heaths at Toome ; S.A.S. 



Var. y P. grandiflora Bab. 

 Basaltic cliffs — very rare. 

 Derry — On the steep cKffs of Benevenagh, in small quantity ; S.A.S., 

 1884 ( ! C.C.B.). 

 Var. J P. oxYPTERA Reichb. 

 Down— Mealough Hill; Br. Mateer, 1848 (IC.C.B.). Sandhills near 



Newcastle ; T.H.C, 1879 (typical). 

 Antrim — Dry pastures on Cave Hill ; Br. Mateer. Dry, heathy pastures 

 on Divis, and heath above Sallagh Braes ; T.H.C. Gravelly 

 shore of Lough Neagh at Selshan, very fine ; S.A.S. 



Order X. EI.ATZM-AC&JC. 



EZiATZITE Linn. "Waterwort. 



1. S. taezandra Be Candolle. 



Lakes, and rivers — rare. Fl. July and Aug. {Cyb, Sib.). 

 Down — Western end of Castlewellan Lake ; Templeton, 1808. In 



Macaulay's Lake south of Ballynahinch ; S.A.S. 

 Antrim — Rathlin Island ; Miss Gage. Not found by S.A.S. 

 Derry — Enagh Lough, Lough Beg, and in the Bannnear Coleraine ; D.M, 



2. &. bydroplper Linn. 



Under water in lakes and canals — extremely rare. Fl. Aug. {Gifb, Hib.). 



Not found recently. 



Down — In the canal at Newry ; Win. Thompson. First found in Ireland 

 by Mr. Thompson in 1836. Lagan canal, a little above the 

 first bridge from Lough Neagh, and more abundantly from the 

 bridge to the lough, Sept. 1837 ; D.M. in Ordnance Survey of 

 Londonderry. In Lough Neagh a little north of the canal ; 

 Cyb. Hib. The last locality is near the county boundary, and 

 may have been in Antrim. 



»2 



