THE LICHENS OF THE COUNTIES OF DUBLIN 

 AND WICKLOW. 



GREENWOOD PIM, m.a., f.l.s. 

 [Read March 18, 1878.] 



The annexed list of Lichens is compiled chiefly from the cata- 

 logue given by Dr. Taylor in the Flora Hibernica and that by 

 Admiral Jones, published in the proceedings of the Dublin Natural 

 History Society. This was submitted to the well-known Lichen- 

 ologist, Mr. Isaac Carroll, of Cork, who has added a very large 

 number of species, many of which have been detected since the 

 time of Admiral Jones. Mr. Carroll believes that there are at 

 least 140 species of lichens in Dublin and "Wicklow still unre- 

 corded, inasmuch as those in the Flora of County Cork amount 

 to about 290, while those of this district hitherto collected only 

 number 150. 



The compiler wishes to take this opportunity of expressing his 

 thanks to Mr. Carroll for his invaluable assistance in making out 

 the following list, which doubtless would have been more perfect 

 had Mr. Carroll explored this region as thoroughly as he has 

 examined Cork and Kerry. 



Family. Collemacei. 

 Tribe. Lichinei. 



Genus. Ephebe. Fr. 



pubescens. Fr. 

 Genus. Lichina. Ag. 



pygmaea. Ag. 



confinis. Ag. 



Tribe. Collemei. 



Genus. Collema. Ach. 



pulposum. Ach. 

 var. tenax. Ach. 

 =C. limosum. 



nigrescens. L. 



Dublin Mts. W. Archer. 



Dublin. D. Moore. 

 Dublin. D. Moore. 



Probably frequent. I.C. 



Taylor in Flor. Hib. Near Dublin. 



Mr. Carroll believes that the true 



C. limosum Ach. is not Irish. 

 Dargle. Flor. Hib. 



