62 The Irish Naturalist. 



three vice-counties — North, Mid., and South (N., M., and S.). 

 North Armagh here means the district b'ing north of a line 

 drawn through Middletown and Richhill, and includes the Plio- 

 cene, New Red, Basaltic, and I^imestone areas. Mid. Armagh 

 comprises the Silurian area as far south as a line joining 

 Newtownhamilton and Goraghwood: and South Armagh 

 comprises the Granite mountain district of the south-east, and 

 the southern portion of the Silurians. These vice-counties, as 

 well as the areas occupied by the various geological for- 

 mations, are shown on the sketch-map of the county (Pi,ATK 2). 

 The signs used to denote the claims of species to rank as 

 natives are those usually employed — f, possibly introduced ; % 

 probably introduced ; ^', certainly introduced . Square brackets 

 are used for species which have occurred merely as casuals or 

 waifs, and not in any way established ; round brackets for 

 plants which have been recorded, but whose presence in the 

 county is doubtful. The sign ! means that I have seen the plant 

 in question growing in the locality described by the observer 

 whose name is given ; the abbreviation "spec. !" signifies that 

 I have examined a specimen from the station mentioned. 

 The following contractions are used for authorities: — 



Cootcs Armagh— Sir C. Coote's " Statistical Survey of the County 

 of Armagh," 1804. 



Flor. Hib.—Ma.ckay's "Flora Hibernica," 1836. 



More N.H.R. — A, G. More, " Localities for some plants observed 

 in Ireland," Nat. Hist. Rcvicio, i860. 



Flor. Z7Zs^.— Dickie's " Flora of Ulster," 1864. 



Cyh. Hib.— Moore and More's " Cybele Hibernica," 1866. 



B.N.F.O. — Annual Reports and Proceedings of the Belfast Natu- 

 ralists' Field Club, 1863-92. 



Herh. N. H. P. S. — Herbarium of the Belfast Natural History 

 and Philosophical Society. 



G. E. — Rev. George Robinson, M.A., Armagh. 



TF. F. /.—Rev. W. F. Johnston, M.A., Armagh. 



H. W. X.— Rev. H. W. Lett, M.A., Loughbrickland, Co. Down. 



>S'. A. ^'.—Samuel A. Stewart, F.B.S.E:, Belfast. 



R. LI. P.— R. Lloyd Praeger. 



My best thanks are due to Mr. James Groves, F.Iy.S., for ex- 

 amining and naming my series of CharacciE ; to Rev. W. 

 Moyle Rogers, F.I^.S., who did the same with the Rubi\ to 

 Mr. Arthur Bennett, F.Iy.S., who went through my pond- 

 weeds and Bactrachian Ra^ttmaili, as well as a number of other 

 critical plants ; and to the several local gentlemen mentioned 

 above, to whom I am indebted for valuable and willing 

 assistance. 



(TO BE CONTINUED.) 



