Stewart — On the Botany of Lough Allen. 429 



Scottish type three only — 



Empetrum nigrum. Listera cordata. 



Salix pentandra. 



Of the Atlantic type one only — Hymenophyllum imilaterale. 



The Highland type is represented by tTV^o species — Carex aquatilis, 

 and Isoetes lacustris ; the first named being an addition to the Irish 

 flora. 



The list of mosses is not to be considered as exhaustive. A num- 

 ber of common forms do not appear, and it may be taken for granted 

 that some of these have been overlooked. Very minute forms have 

 also escaped detection by reason of the insuificiency of time to make the 

 search. Further, the mosses, which only come up during winter, 

 remain unnoticed, on account of lack of opportunity at the proper 

 season. Through these causes the list of mosses has been considerably 

 reduced; nevertheless, though not to betaken as a complete census, yet 

 it includes several of the less common species, and extends the range 

 of others. Hypnum callichroum is an addition to the Irish flora, and 

 the doubtful Andrsea falcata is confirmed as an Irish plant. The 

 variety, elegans, of Sphagnum acutifolium is also a new record. 



I have again to return thanks for kind assistance in determining 

 the critical species, which has enabled me to record these plants with- 

 out any doubt as to the correctness of the names. !Mr. G. A. Holt, of 

 Manchester, made a microscopic examination of the greater part of the 

 mosses and hepatics. Professor Babington determined the Eubi, while 

 Messrs. H. and J. Groves, A. Bennett, F.L.S., J. Backhouse, and 

 A. G. More, F.L.S., gave valuable help in their several specialities. 



LIST OF SPECIES. 



Eanustctiiace^. 



Ranunculus hederaceus (Linn.) — Kear Drumshambo chapel ; rare. 



R. flammula (Linn.) — Very common. 



R. acris (Linn.) — Common. 



Caltha palustris (Linn.) — Marshes ; common. 



Nymphs ACE^. 



N'ymphaea alba (Linn.) — In Lough Allen, to the west of Drumshambo ; 



very rare. 

 Xuphar lutea (Sm.) — At the extreme south of Lough Allen ; rare. 



Ceucifee^. 



Nasturtium officinale (R. Br.) — Common. 



N. palustre (D. C.) — South end of the lough ; rare. 



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