EOCENE TEENS FBOM IRELAND AND SCOTLAND. 655 



Figs. 5 & 6. Cosmarium bifarium, n. sp. : 5, cell, x 900 ; 6, end view. 



7. Cosmarium Diadema, n. sp., x 450. 



8. Cosmarium capax, n. sp., x300. 



9 & 10. Penium delicatulum, n. sp., x450. 



11 & 12. Docidium granuliferum, n. sp. : 11, cell, X300; 12, granules, 

 XlOOO. 



13. Docidium annulatum,n. sp., x300. 



14. Docidium burmense, n. sp., x300. 



15. Docidium tessellatum, n. sp., x300. 



16 & 17- Docidium coronulatum, Gran.: 16, junction of cells, x300; 17, 

 apex of cell, X 400. 



Eocene Ferns from the Basalts pf Ireland and Scotland. 

 By J. Starkie Gabbier, F.L.S., F.G.S. 



[Head 7th May, 1885.] 



(Plate XXVI.) 



I feel hardly justified in bringing a communication before you 

 based on such very meagre material. I have only been able to 

 get together, from all sources, five varieties of fern, and these 

 consist of poorly preserved and almost unique fragments ; they 

 nevertheless represent, so far as the ferns, a great number of 

 expeditions to County Antrim and to Mull, and much diligent 

 collecting there, and contrast favourably with any brought from 

 the other extremities of the formation in which they occur. 



Two, those from Glenarm and Ballypalady, are from the lowest 

 stage but one, palseontologically, of the basalts, and belong, I be- 

 lieve, to almost the oldest known Eocene. One is new to science 

 and the other recorded for the first time from Great Britain. 



One, from Mull, is from, palseontologically, the lowest stage of 

 the basalts. The others, from Lough Neagh, are from a vast 

 series of deposits, synchronous, I believe, with those of Bovey 

 Tracey, and representing the latest stage of the Eocene preserved 

 in the north of our Isles. Attention has already been called to 

 these latter by Mr. W. H. Baily in the ' Beports ' of the British 

 Association. 



Except the two from Lough Neagh (figs. 8 & 9), which belong 

 respectively to the Geological Survey of Ireland and to Canon 

 Grainger, F.G.S., the specimens were collected by means of the 

 Government Grant in aid of research, and will be deposited in 

 our National Museum. 



