NAIAD AC E.-K. 99 



M-AZADACE^. 



Trlgrlocbln palustre I., foniinon. /•/. 112. DO, A\, LI). 



T. marltlmum L. Common hy sea shore. /'/. 1-11. DO, AN, LD. 



Potamog-eton natans L. Very common. /•'/. 1-18. DO, AX, LD. 



var. ovallformls Fieber. /•/. 1-18 — , AN, — . 



P. poIyg-onlfoUus rourr. Common. Fl. 148, Sup. 202. DO, AN, LD. 



[/'. Kirkii Syme. 



The Edinburgh Herbarium contains a specimen labelled in Dr. Moore's 

 handwriting, " I'otamogeton species nearest to 1'. heterophyllus ? but 

 different apparently. Growing in rather doop water in Lough Neagh, 

 Co. Antrim. — 1) M." Mr. Fryer and Dr. Boswell fonnd the plant to be 

 /'. Kirkii. There is some doubt as to wliether this specimen was 

 properly labelled, and that doubt can only be removed by finding the 

 plant in Lough Neagh. The only undoubted Irieh record is' from Maam 

 in Co. Galway.- See I.N. -wiii, 83 ; and Fryer's Potamoc^eions of the 

 British Isles.] 



P. plantagrlneus Ducr. Rare. Fl. SOL DO, AN? LD.? 



Down — In Lecale at Ilathmullan marsh ; near Ballymenagh House and 

 Tobermoney ; and in Ards in a marsh between Portaferry and 

 Cloughey (rraeger)-I.N. x\, 209; xii, 263. 

 [Antrim— Not infrequent in bog ditches (Moore) — Cyb. 1 and 11. 

 Derry — At Magilligan (i\Iooi-e] — Cyb. I and IL 



Not refound in Antrim or Derry, and probably these records are 

 erroneous.] 



P. rufesoens Schrad. Frequent. Fl. 148, Sitp. 202. DO, AN, LD. 



[P. latjceolatus Sm. Error. Fl. 302. DO, AN, — .] 



P. heterophyllus Schreb. Rare. Fl. 148. DO, AN, LD. 



Down— Pool bv Lough Neagh near Annaghdroghal ( Waddell) — I.N. 



.xxi, 134. 

 Antrim— Lough Neagh at Glenaw \dQQ- B.N.F.C. Harbour Island, 



Lough Neagh ( Waddell)— B.E C. 1911. Selshan 1919, Bennett. 

 Derry - Bann near Toome {Druce)—I.N. viii, 199. Still at Kilrea 1893 



\Praeger)—I.T.B. Abimdant in Lough Beg near Toome [county 



not stated], a very attenuated form with peduncle sometimes a foot 



long — Stewart MS. 



