Report of Fauna and Flora Committee — Irinli PJKBophycece. 443 



seaweed, which has, probably, much to answer for in the potato 

 diseases. 



The revised list of Holmes and Batters was prepared under diffi- 

 culties as regards the Irish Algee, many species discovered by earlier 

 algologists not having been at the time recorded. 



We have had the advantage of seeing the collections made by 

 "W. Thompson in the north-east of Ireland ; Dr. D. Moore (Co. 

 Antrim); I. Carroll's (the small remainder of his collection saved 

 from the fire, in Queen's College, Cork) ; Miss A Ball's collection, 

 preserved in the Botanical Collections of the Science and Art Museum, 

 Dublin ; and of course the fine herbarium of the late Dr. Harvey, pre- 

 served in Trinity College, and under the charge of Prof. E. P. Wright, 

 to whom we are indebted for opportunities of inspecting it. A collec- 

 tion made, more especially at Balbriggan, by Dr. Scott, at the end of 

 the last century, and preserved in the Science and Art Museum, has 

 also been inspected. We have received help in the examination of 

 the collections from Miss Hensman (the west coast collections), and 

 from Miss M. C. Knowles in the south-east collections. To 

 Dr. Bornet, M. Sauvageau, and Prof. Reinke, who have fz'om time 

 to time given us the benefit of their knowledge, we are also 

 indebted. 



It is to be regretted that it is extremely difficult to get into com- 

 munication with correspondents on different parts of the Irish coast 

 willing to send up specimens for determination. 



The present list is far from complete — the genus Ectocarpus is still 

 poorly represented, as is the important group of the Tilopteridacese . 

 Battersia of the Sphacelariacese has not yet been discovered. 



The present list contains 111 species, and increases considerably 

 the known distribution of many others ; one of the species recorded 

 is new to science, and one new to the British Elora. 



We have followed Holmes and Batters {op. cit.) in their division 

 of the coast of Ireland into the districts : — 



10. From Malin Head to Slyne Head, including the outlying 



islands. 



11. Erom Slyne Head to Crow Head, including the outlying 



islands. 



12. From Malin Head to Howth. 



13. From Howth to Raven Point. 



14. From Crow Head to, and including. Raven Point. 



2 12 



