306 POLTGOFACE^. \_Polygonwm.. 



Sea-level in Deny and S. Cork. To 900 ft. in Donegal, and to 

 1500 ft. in Tipperary {Ha/rt). 



An abundant species in non- calcareous soils, but rare or absent 

 over large areas. 



5. P. minus Huds. — Nwrrow-hmed Persicwria. 



Disti-icts I. II. III. IV. V. VI. — VIII. IX. X. XI. XII. 



Lat. 52°-56J°. Throughout Ireland, probably. Type, English. 



LoTvland. Damp, boggy, or gravelly places; rare. Fl. July- 

 September. 



I. Shore of Ross Bay, Lower Lake, Killamey : R. W. S. i888~ 

 BalHncoIlig Castle near Cork ( Carroll) : Cyh. — II. I^Tear Cork 

 (Brummond!) : Flor. Corh. — III. "Wet hollows on the Great Heath 

 of Maryborough, Queen's Co. . Praeger iSgy. — IV. Near Ennis- 

 fcerry {J. Ball) : Cyh. — V. Near Eoberstown, Kildare (Moore) : 

 Cyl.—Yl. About Tuam, Co. Galway : Ir.Flor.—YlU. and IX. On 

 the shores of Lough Cullin, Mayo {More) : Cyh. — IX. Near SUgo 

 {J. Wynne) : Cyh. — ^X. Shores of Castleblayney Lake at Church 

 HiU, Monaghan, 1806 : Tenvpleton MS. Sparingly at Gubbaroe 

 Point, Kesh, Lough Erne : Barrington 1884. In Co. Armagh, by 

 the canal between Scarva and Tanderagee {Stewart) ; shores of 

 Clay Lake near Keady, and of Lough Neagh at Eaughlan Point : 

 Praeger iSg^. Plentiful on the shore of Virginia water, Cavan: 

 Praeger i8g^. — XI. Near Malin Well, and between Gweedore and 

 Dunglow {Bickie) : Flor. Ulst. — XII. BaUygowan Lake, Down, 

 1807 : Terwpleton MS. Sparingly by the Bann above the Cutts, 

 Co. Deny : Moore MS. Abundant by Mon Lough, Down {Stewart) t 

 Cyh. Downpatrick, and by the Newry canal {Stewa/rf) ; BaUyna- 

 hinch, and by the lake at Clandeboye {Praeger) : Flor. JV.-F. 



Often confounded with the preceding species and perhaps 

 frequent throughout Ireland. 



6. P. mite Schi-ank — Mild Persiearia. 



Districts — — — — — — — — — X. — — 



Lat. 53f°. Co. Cavan only. Type, Germanic. 



' Lowland. Stony lake shores ; very rare. Fl. August-Sept. 



X. On . the stony shores of Lough Eamor, growing with 

 P. minus : Praeger iSq'j. 



Mr. Praeger's locality is, so far, the only one known for Ireland. 



