278 HYDEOCHAEiDACE-aE. \Hydrocharis. 



MONOCOTYLEDONES OR EOT)OGENJE. 



[Order Trilxace^.J 

 [Paris quadrifolia (Linn.) is stated by Smith to grow " in 

 the wood near Ross Castle, pear the lake " of ELUarney, but 

 has not been found there by any subsequent observer.] 



ORDEE LXV.— HYDROCHARIDACE^. 



H7DR0CHARIS Linn. 



1. H. Morsus-rause (Linn.) — Frog-bit. 



Districts - -- - 5 67 8?- 10- 12 



Lat. 52°-55°. Middle and North of L-eland chiefly. 



Type in Great Britain, English, inclining to Grermanic. 



Ditches and bog-holes ; rare and local. Fl. July, August. 



5. Common in the bog of Curragha, Dublin ; Wade Bar. 

 In bog-pits near Balruddery (Dr. Scott) ; Machay Bar. 

 Abundant in ditches by the Boyne, near Slane, and thence 

 to Drogheda ; D. M. — 6. In drains on a marsh by the river 

 Fergus, a little above the bridge at Ennis ; Ma^kay Cat. Ir. — 

 7. In the county of "West Meath ; Mackay Ear. Plentiful 

 about Mullingar ; Mr. F. J. Foot. — 8. ? In the turfy ditches 

 about Ballinahinch, Connemara ; Wade Bar. — 10. Near 

 Cavan ; Flor. Hib. Belturbet ; B. M. — 12. Shores of Lough 

 Neagh at Portmore ; Lough Neagh at Crumlin ; Bog-holes 

 near Portaferry ; Flor. TJlst. Abundant in all the drains 

 near Portmore, Antrim ^ D. M. 



STRATIOTES Linn. 

 1. % S. aloides (Linn.) — Water-soldier. 

 Districts (1) _ - - 5? 6? - - - 10 - (12) 

 Lat. 54°-56°- Possibly native in the North of Ireland. 

 Type in Great Britain, Germanic. 



Ditchesand lakes ; very local, and probably not indigenous. 

 Fl. July. 



1. Naturalized in Ballyphehane Bog ; Fhr. Cork ; and 

 still found there by Mr. J. Sullivan. — 5. Canal near 

 Drogheda; Prof. E. Murphy (not found there by Mr. J. 



