470 CHAEACE^. [Nitella. 



Flor, Hib. 8f Groves z88o. Deny Lough, Co. Do-vm ; in Eathlin 

 Island, Antrim (Stewart) : Flor. N.-K Several further localities 

 for this district are given in 8. SfP. iSg^. 



Sea-level in N. Antrim and S. Cork. To 1100 ft. in Kerry 

 {R.W.S.). . 



First foimd in Ireland by Dr. Moore, at Kikea, Deny, in 1836. 



5. N. flexilis Agardh. 



Districts I. — — — — — — — IX. X. — — 



Lat. 51J°-54i°. West Ireland, chiefly. 



Lakes and rivers ; rare. Frt. May-July. 



I. Caragh Lake, and in most of the larger lakes in Kerry :, 

 R. W. S, i8go. G-lengarifE, Co. Cork {Carroll): Groves iSgj. 

 IncMgeela and Grouganebarra lakes, Cork : Phillips iSg'j. — 

 IX. Cong, Mayo {Linton) : Groves i886. Lough Allen, Leitrim : 

 Stewart i88^. — X. Eossford Point, Fermanagh {W. Hiompson): 

 Groves i88$. Camlough river, Armagh : Praeger i8g^. 



First found in Ireland by W. Thompson, at Eossford Point, 

 Fermanagh, in 1837. 



Var. OTBrpiCA Wallm. — I. Killarney, Kerry, 1861 {Cmrington) : 

 Groves i8gs a, 



6. N. opaca Agardh. 



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



Lat. 51^°-55i°. Throughout Ireland. 



Lakes, ponds, rivers, ditches, &c. ; frequent. Frt. April-June. 



Sea-level in N. Antrim and S. Kerry. To 1100 ft. in Kerry 

 {R.TF.S.). . 



The commonest species of Ifitella in Ireland. 



