34 



Proceedings of the Royal Irish Academy. 



tlie last four being named after tliefour provinces of Ireland, in which. 

 each, type respectirely reaches its maximum, namely : Ultonian type 

 jn Antrim, 3Iumonian type in East Cork, Lagenian type in Dublin, 

 Connacian type in "West Galway. 



Fig. 21.— Boundaries of the areas of the Irish Typ^ of Distribution. 



We have now to consider in detail the six types of distribution 

 above defined. In the lists of species Tvhich follow, only the more 

 characteristic plants of each tv^e are mentioned. Xo attempt is 

 made, considering the stiU incomplete state of oui' knowledge, to 



