202 [Appendix B.N.F.C. 



ARACEJE. 



Acorus calamus L. Quite naturalized throughout the course of the Lagan 

 Canal. 



Aram maculatum L. To 1000 feet in the Mournes, S. & P. 

 POTAXtZOGETONACEJE. 



Potamogeton polygonifolius Pourr. 1550 feet in the Mournes, Hart 

 R.I.A. 



P. rufescens Schrad. 



Down— Lake (Ballykine Lough), Ballynahinch, R.L1.P. ; Watson 

 B.E.C. 1891-2. Burren River near Newcastle, S. & P. 



P. nltens Weber. 



Down— Annsboro Lake, S.A.S., I.N. 1894. 



Antrim — Six-mile water near Antrim, S.A.S., I.N. 1894. 



P. lucens L. 



Deny — Magilligan, Mrs. Leebody. 

 var. c. longifolius Gay. 



Antrim — Washed ashore at Crumlin Waterfoot, S.A.S. 



P. undulatus Wolfg. (= P. perfoliatus x crispus). 



Antrim — In the Six-mile River above Templepatrick, S.A.S. , 1882-94. 

 An infertile hybrid which grows in abundance at junction with 

 Doagh River and other places, vide Bennett, Journ. Bot. 1894, and 

 S.A.S., I.N. 1894. 



P. Zlzli Roth. 



Down — Lagan Canal near Blaris, S.A.S. 

 Antrim — Lough Neagh at Cranfield, S.A.S. 

 Derry— Bann at Kilrea, Mrs. Leebody. 



P. obtuslfolius M. & E. 



Down — Loughinisland, R.L1.P. 



Derry— Killelagh Lake above Maghera, R.L1.P. 



P. pectlnatus L. 



Down — Clandeboye Lakes, R.L1.P. 



Antrim— Quarry pools at Magheragall near Lisburn, R.L1.P. ' 



Derry — Eglinton, Mrs. Leebody. 



