84 [Proc. B.N.F.C, 



being ploughed and levelled and fenced like the adjoining fields. 

 Curious to state, Bishop Reeves has not referred to this ancient 

 church in his " Ecclesiastical Antiquities of the Diocese, &c," 

 but Father O'Laverty has a slight note regarding it. 



Wm. Gray, M.R.I.A. ; F. W. Lockwood, C.E. ; Rev. C. H. 

 Waddell, M.A. ; and Francis Joseph Bigger having criticised 

 the paper, the essayist replied. 



R. Lloyd Praeger then proceeded with the subject of 

 " Botanizing in Co. Dublin," in which he contrasted the flora of 

 Dublin with that of Antrim and Down. He first pointed out 

 the difference in the physical features of the two areas. Dublin 

 County resembled Co. Down in being generally of small 

 elevation, with a group of granite mountains in the southern 

 portion ; but the replacement of the Ordovician grits of Down 

 by Carboniferous Limestone caused marked changes in the 

 flora. The Dublin flora differed from that of the north-east 

 chiefly in possessing a number of limestone-loving species, and 

 some others that affect gravelly and dry places. To illustrate 

 this, mounted specimens were shown of some thirty species 

 which are characteristic of the Dublin flora, all of which are 

 either rare in or absent from the north-east. A few of these 

 have a local distribution, chiefly around Dublin, but the 

 majority of them occur over the south, centre, and east of 

 Ireland, becoming rarer to the northward. 



The plants shown included Ranunculus circinatus, Sisym- 

 brium Sophia, S. Irio, Diplotaxis muralis, Papaver hybridum, 

 Melilotus officinalis, Ononis arvensis, Poterium Sanguisorba, 

 Foeniculum officinale* Dipsacus sylvestris, Carlina vulgaris, 

 Tragopogon pratensis, Leontodon hirtus, L. hispidus, Crepis 

 tar ax act folia, Chlora perfoliata, Galeopsis Ladanum, Cala- 

 mintha officinalis. Verbena officinalis, Primula veris, Mercuri- 

 a lis annua, Orchis Pyramida lis, Glyceria aquaiica, Schlerochloa 

 rigida, Hordeum marinum. 



