Lemna.] LEMNACE^. 369 



II. Plentiful in Kilban-y l3og near "Wateriord : B.-H. Sf O. 

 i8go. — IV. Ditches at Chiu-clitown, "Wexford : Marshall i8g8. — 

 v. Ardee bog, Louth: Ir. Flor. Bog of Cool, below Ardee 

 (J. White) ; ponds near Glasnevin {Moore) : Cyh. Pond near 

 Ballisk, Donabate ; and mill-pond at Balbriggan, Co. Dublin : 

 N. G. i8g3 Sf i8g^. Drains by the Boyne below Drogheda, Meath ; 

 and very abundant in an artificial lake at Beaulieu House near 

 Queensborough, Louth : Praeger i8g'j. — VI. l^ear Limerick 

 {Prof. Sarvey) : Cyl. — X. In Lough Erne, north of Enniskillen : 

 Barrington i88^. Brackish drains below Newry ; and abundant in 

 the Closet riVer near Lough Neagh, Armagh: Praeger i8g^. 

 Drain near Maghery, Lough Neagh, Tyrone, 1896 ; Mrs. Leehody. — 

 XII. Abundant by the Lagan and near Lough Ifeagh {Moore) : Cyl. 

 Newry canal ; by the QuoiLe below Downpatrick ; brackish ditches 

 between Queen's Quay and Connswater {Stewart) ; Ballycroghan 

 near Bangor {Praeger) ; Bog Meadows, Belfast ( Carry) : Flor. N.-JE. 



4. L. polyrMza Linn. — Greater Buokweei. 



Spvrodela polyrhiza Schleid. 



Districts — — V. VI. VII. [XII.] 



Lat. 53i°-63|°. Middle and ]Srorth. Type, English. 



Lowland. Ditches tind pools ; rare. Fl. June. 



V. Brackish ditch near Irishtown, Dublin {Moore) ; pond in the 

 Phcenix Park {More) : Cyl. — VI. Common about Limerick ( W. S. 

 Swrvey) : Flor. Sil. — ^VII. Belvedere Lake, Westmeath {Moore) ; 

 pools near Mullingar {F. J. Foot) : Cyl. Kear Multyfarhham, 

 Westmeath, 1869; Moore. Pond by the roadside near Portna- 

 shangan Eectory, "Westmeath : Levinge i8g4. Drain near Doonis 

 Lake, Lough Eee : B. ^ Y. j,?,?^.— [XII. In a flax-hole below 

 the second lock of the Lagan canal, 1884 {8. M. Maloomson), a 

 modem introduction : Flor. JSf.-F.'] 



OEDEK LXXIIL— ALISMACEJE. 



ALISMA Linn. 

 1. A. Plantago Linn. — Cfreat Water-Plantain. 



Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XL XII. 



Lat. 51i°-55J°. Throughout Ireland. Type, British. 



Lowland. Lakes, ponds, &c. ; frequent. Fl. July-August. 



2b 



