370 ALISMACE^. [AUsma. 



2. A. ranuncnloides Linn. — Lesser Water-Plantain. 



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



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



Lowland. Boggy and marshy places ; frequent. Fl. June-July. 



Var. EEPENS {Davies). — ]!^ot infrequent by lake margins in 

 mountainous districts. 



SAGITTARIA Linn. 



1. S. sagittifolia Linn. — Arrow-head. 



Districts III. — V. VI. VII. — IX. X. — XII. 



Lat. 52f°-55i°. Middle and North. Type, English. 



Lowland. Ditches, rivers, canals, and lakes ; local. Fl. July- 

 August. 



III. In the Barrow at Carlow ; Greenwood Pirn. In the Barrow 

 below Athy in Queen's Co. ; R. W. S. At Portarlington, Queen's 

 Co. ; Praeger. — V. Holes between Glasnevin and Drumcondra 

 Bridge, Dublin : Ir. Flor. Not infrequent in the Canals near 

 Dublin {Moore) : Cyh. Abundant in the Eoyal and Grand Canals, 

 Dublin, 1896; quarry holes by the Tolka river, Dublin; iV. C. 

 Black river near Monasterevan, Eldare : Sort i88j. — VI. In the 

 Shannon near Limerick ( Carroll) : Cyh. Near the harbour, Por- 

 tumna; and at the mouth of the "Woodford river. Lough Derg,. 

 Galway : N. C. i8g^. — VII. In the Shannon above and below 

 Lanesborough, Longford : Wade Par. — whence it has spread into- 

 the Eoyal Canal: Cyb. Drains near Portumna, Tipperary: Mack. 

 Ear. In the canal west of Longford : Foot i86^. Lough Derevaragh ; 

 and in the Eiver Inny, "Westmeath, plentiful : Zevinge i8q^. — 

 IX. In Lough Eey near Boyle : Foot 1865. — X. At the mouth of 

 a small river opening into Lough Erne, Fermanagh; near Dun- 

 gannon; in the Bann near Portadown, Armagh: Mach. Par. 

 Vemer's Bridge, Armagh {Admiral Jones) : Cyh. Abundant along 

 the Lough ISTeagh shore in Armagh, and in the Blackwater and the 

 Ulster and Newry canals : Praeger iSgj. Doon Point, Lough 

 ISTeagh, Tyrone {Miss M. C. Znowles) : Ir. JSfat. i8q'j. Lake at 

 KiUikeen and at Drigget, Co. Cavan {Rev. N. J. Salpin) : Flor. 

 Ulst. — XII. In the large drain at Portmore, and other places 

 about Lough Neagh, 1794 {Templeton) : Whitla MS. In the 

 Bann at Portglenone : Templeton MS. In a small lake above 



