.] EANUNCULACE^. 5 



Lowland. Still waters in lakes, pools, and quarry holes ; fre- 

 quent. Fl. May-June. 



The form with floating leaves, variously named R. Godronii 

 (Gren.), R. Droiiettu (GroAi.), and R. radians (Kev.), has heen found 

 in "Westmeath, Louth, King's Co., Donegal, Kerry, Dublin, Galway, 

 and Mayo. 



4. R. heterophyllus Ynes.-- Common Water- Crowfoot. 



Districts — — — — V. — VII. VIII. — X. — XII. 

 Lat. 53°-55°. Middle and North Ireland. 



Lowland. Still waters or slow streams ; frequent. Fl. May- 

 July. 



V. Prequent in Co. Dublin; W. C. — VII. In Lough Eee : 

 £. ^ V. z88'j.— '^111. Between Clonbur and Lough Mask : if. ^ S. 

 j8g6. — X. Ditches on Devenish, Lough Erne : Ba/rrington 1884. — 

 XII. Copeland Island, Groomsport, and Clandeboye Lake, Down 

 {Stewart); shore of Lough Ifeagh, near Crnmlin {Corry), &c. ; 

 frequent in the north-east : Flor. N.-JE. 



Probably more widely distributed than would appear from the 

 foregoing records. 



Va/t-. TEIPHTLLOS {Wallr.). — V. Near Baldoyle, Co. Dublin; 

 W. T. Dyer Sj- More. 



R.peltatus Fries. 



BatraeMum truncatwm Dum. 



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



Lat. 61i°-55°- Throughout Ireland probably. 



Lowland. Lakes and slow streams ; frequent. Fl. May-August. 



The distribution here given includes that of R. floribundms (Bab.) 

 which has been recorded from Districts III. tV. V. VIII. IX. and 

 XII. 



Vwr. TKUNCAiTTS Siem. — XII. Near Saintfleld and Lough Mann, 

 Co. Down {Rev. C. M. Waddell) : S. ^ F. i8gs- 



R. penicillatus Dum. 



R. pseudo-fluitans Bab. (Man. 6th Ed.). 



Districts I. II. III. IV. V. VI. VIL — IX, X. XL XII. 



Lat. 52 J°-54i°; Throughout Ireland probably. 

 In swift streams ; frequent. Fl. May-July. 

 To 750 ft. in Dublin (iV. C.) but usually lowland. 



