440 Proceedings of the Royal Irish Academy. 



Chaeace^. 



Chara contraria (Kuetz.) — In the lough ; apparently rare. 

 Mtella flexilis (Ag.) — In Lough Allen; with the preceding. 

 !N^. opaca (Ag.) — Abundant in the lough. 



Mtrsci. 



The classification is the same as that of Moore's " Synopsis of the 

 Mosses of Ireland." 



DlCEANE^. 



Dicranella squarrosa (Schrad.) — Damp rocks on Slieveanierin ; rare 



and barren. 

 Ceratodon purpureus (Linn.) — Common. 

 Dicranum pellucidum (Hedw.) — Slieveanierin ; not common. 



D. scottianum (Turner). — Slieveanierin ; very fine, but without fruit. 

 Distichum capillaceum (Hedw.) — Abundant on the limestone at Drum- 



shambo. 



GrEIMMIEiE. 



Grimmia pulvinata (Dill.) — Lough Allen ; frequent. 



Gr. apocarpa (Turner), var. rivulare. — Wet places, Slieveanierin, and 



Lough Allen ; frequent. 

 Racomitrium lanuginosum (Hedw.) — On rocks, SKeveanierin. 

 R. aciculare (Linn.) — Slieveanierin, and Lough Allen ; abundant. 



E. fasciculare (Dill.) — Slieveanierin and Lough Allen. 



Leitcobkye^. 

 Leucobryum glaucum (Hedw.) — Slievenakilla. 



Teichostomace^ . 



Didymodon rubellus (B. & S.) — Common at Drumshambo, 



Trichostomum tophaceum (Brid.) — By the lough. 



Ditrichum homomallum (Hedw.) — Drumshambo; not common. 



D. flexicaule (Schw.) — Abundant on the limestone at Drumshambo; 



barren. 

 Tortula aloides (Koch) — Walls at Drumshambo. 

 T. revoluta (Schw.) — Common about the lough. 

 T. vahliana (Schultz) — Lough Allen; rare. 

 T. muralis (Linn.) — Common. 



T. muralis, var. rupestris. — Limestone at Drumshambo. 

 T. unguiculata (Dill.) — Common around the lough. 

 T. fallax (Hedw.) — With the preceding, and still more abundant. 

 T. cylindrica (Tayl.) — By Lough AUen. 



T. reflexa (Brid.) — Limestone rocks near Drumshambo ; very rare. 

 T. subulata (Linn.) — Frequent. 

 T. tortuosa (Linn.) — On an old wall at Drumshambo. 



