Butomus.] ALISMACEJi. 305 



Shannon ; Wade Bar. — 10. At the mouth of a small river 

 opening into Lough Erne, Fermanagh ; near Dungannon ; 

 and in the Bann, near Portadown, Armagh ; Mackay Bar. 

 Verner's Bridge; Admiral Jones. Lakes at Killikeen and 

 Drigget, Cavan; Flor. Ulst. and Fhr. Hib. — 12. Drains in 

 Portmore Park, and other places near Lough Neagh ; Moyn- 

 tagh bogs ; Maghera Ferry ; Shane's Castle, &c. ; Fhr. Ulst. 

 In the River Bann ; on the shores of Lough Neagh ; and in 

 a small lake above Kikea, Derry ; D. M. In the Lagan ; 

 Belmont ; and Portmore Lake ; Mr. S. A. Stewari. 



Along the whole course of the Shannon, and canals issuing 

 from it ; and in the streams connected with Lough Erne and 

 Lough Neagh. 



BUTOMUS Linn. 



1. B. umbellatus (Linn.) — Flowering Bitsh. 



Districts -2--567--10-12 

 Lat. 52°-55°. South, Middle, and North-east of Ireland. 

 Type in Great Britain, English. 



Rivers, ditches, canals, and lakes; local and rare. Fl. 

 June to August. 



2. Above the bridge of Fermoy ; Drummond, verified by 

 Mr. T. Chandlee. In pools at Gerah, near Fermoy ; Mr. T. 

 Chandlee. — 5. In a ditch near the Grand Canal, a little below 

 Lord Cloncurry's house, Kildare ; Mackay Cat. Ir. In the 

 Tolka, below Glasnevin-bridge, possibly introduced ; D. M. 

 In the Mattack river, near Drogheda, probably introduced ; 

 Mr. J. B. Hamilton.—- 6. About the Shannon, and near Car- 

 bdlly-bridge. Limerick ; Wade Bar. Plentiful near Limerick; 

 Prof. Harvey. Banks of the Shannon at Castle Council ; 

 ditches near Corrofin, &c., in Clare ; Fhr. Hib. In the Lake 

 Teenevan, near Gort ; Mr. C. Garter. In marshes about the 

 river Fergus ; Wade Bar. Abundant about Ennis ! Bev. T. 

 Warren. — 7. Sent from the Barrow to Threlheld. — 10. Shores 

 of the upper Bann; and in the canal near Tandragee, 

 Armagh ; Admired Jones. In the Blackwater, near Maghera ; 

 Bev. Q. BoUnson. — 12. Lough Clay, near Killyleagh ; Fhr. 



X 



