Praeger — Gleaninrjfi in Irish Topographical Botany. 91 



var. lacustris H. & J. Groves. 

 38 Down Lough Neagh '98— J. H. Davles. 



Also in 16, 27, 36, 37, 39 — see Groves j^9. So far as at present 

 known, confined to three lakes, Lough Neagh (where it is abundant), 

 Lough Cullin, and a lake at Eoundstone. 



sub-sp. desmacantha H. & J. Groves. 



32 Monaghn. ]S[ear L. IS'aglack '01 — G. E. Bullock -Webster. 



Also in divisions 7, 8, 10, 11, 14, 15, 16, 17, 18, 19, 21, 23, 24, 

 25, 26, 27, 28, 29, 30, 33, 38— see Irish Top. Bot. 



C. polyacantha Braun. 

 32 Monaghn. Carrickmacross and L. Naglack '01 — Bullock-'Webster. 



Also in divisions 5, 7, 8, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 

 22, 23, 25, 26, 27, 28, 32, 37— see Irish Top. Bot. 



C. contraria Kuetz. 



Type— Divisions 1, 10, 13, 14, 15, 17, 18, 19, 21, 22, 23, 24, 25, 

 27, 29, 30, 32, 35, 37, 38, 40. 



var. Mspidula Braun. 



Divisions 16, 23, 26 — see Groves ^4g. Common in the Westmeath 

 lakes : elsewhere at Cong only. 



C. denudata Braun. 



23 Westmth. Brittas Lake '94— Levinge 485- 



C. tomentosa L. 



Divisions 10, 15, 23, 24, 25— see Irish Top. Bot. WeBtmeath 

 lakes and Shannon only. 



C. Mspida L. 



Type— Divisions all, except 3, 6, 12, 26, 29, 30, 33, 31^, 36, 39. 



var. macracantlia Braun. 



Divisions 19 [not 21], 20— see Groves j./^^. 



