232 DUBLIN UNIVERSITY 



localities in England and Scotland, and can hardly be supposed to have 

 come from that quarter, thus passing over the whole of Ireland ; unless, 

 indeed, it be considered one of those which Mr. Watson formerly called 

 his Hebridean typical plants, a few of which reach the west coast of 

 Ireland — e. g., Ajuga pyramidalis, Eriacaulon septangular 'e, and also the 

 curious Alga, Palmella montana. The "Handbook" gives the range 

 M in the Western States and North America, but not recorded from Asia 

 or the Arctic regions. Not common in England and Scotland, and not 

 known in Ireland." 



Hypnum megapolitanum is another important addition in its way, 

 which has not before been admitted to the rank of a species in any work 

 on British mosses, though Mr. Wilson, in "Bryologia Britannica," alludes 

 to it as a variety of Hypnum confertum. The continental bryologists 

 have mostly held it to be a good species, and as such have described it. 

 Mr. Wilson, after seeing the specimens I sent to him, as well as other 

 good English judges, are now convinced they are right, and hencefor- 

 ward, he informs me, it will rank as such in British lists. Hypnum 

 megapolitanum ( Webr and Mohr) grows in several places among the 

 sand-hills between Malahide and Portrane, where I collected it in fruit 

 last November, and Mr. D. Orr collected it near the " Strawberry Beds." 

 Previous to this it had only been known to grow in Britain near Shore- 

 ham, Sussex, and sparingly near Liverpool. 



Galium elongatum (Presl.) grows in considerable quantities in ditches 

 and on damp meadows by the side of the Kiver Boyne, a little below the 

 bridge which crosses the river to Slane. Whether this be a good species, 

 or only a variety of Galium palustre, as some suppose, the form is rare 

 in Ireland. I am not aware that any notice has been previously taken 

 of it, though its great size and marked appearance could hardly fail to 

 attract the attention of persons not very well acquainted with Irish 

 plants. It retains all its characters under cultivation, to which I have 

 subjected it during the last three years. Mr. Babington, to whom I am 

 obliged for identifying it among my specimens, has also, I believe, found 

 it in the south of Ireland. 



Bly&muB compressu8 has been lately found in considerable abundance 

 in the county of Cork by Mr. John Sullivan, of the Queen's College there, 

 who sent specimens to Mr. I. Carroll, and communicated the circum- 

 stance verbally to myself a short time ago. The geographical distribu- 

 tion of this plant, as given in the "Handbook," is — "Europe and Russian 

 Asia, not extending to the extreme north, and yet a mountain plant in 



