xciv INTEODUCTION 



"Dundalk — A. '99" signifies that A. stated in 1899 that he had 

 found the plant at Dundalk, " Dundalk — A. '99 156" signifies 

 that A., in the paper numbered 136 in the Bibliography which suc- 

 ceeds, and published in 1899, has stated that he found the plant 

 at Dundalk. Such expressions as " C. throughout '99 — A.," "f, in 

 the north — A. 874," &c.,are to be similarly translated, "c." and 

 " f." in these cases standing as usual for "common" and "fre- 

 quent." In the case of well-known books, the abbreviated title of 

 the book is quoted, as this is shorter than the name of the author 

 and the reference number, and more explicit. Where " Cybele," 

 editions I. and II., "Flora of the North-east of Ireland," and 

 "Flora of Donegal " are quoted, the dates of publication are omitted, 

 even where the date of finding of the plant is unknown, as these 

 dates are well-known land-marks in the field of Irish botany. In 

 all cases where no authority is appended to the note on distribution, 

 it signifies that the note is framed on the collective testimony cf 

 several observers. The absence of a reference number after a 

 personal name in all cases signifies that the information was supphed 

 direct by the person named to the compiler. Such original material 

 has been largely used in preference to published papers embodying 

 the same observations, the information given in the former being 

 generally fuller and more accurate. 



Again, where information is easily available, as in the published 

 county Floras, the notes given herein are of a more general character 

 — as in the case of Donegal and the north-eastern divisions. The 

 same applies to those divisions (Dublin, Cork, Kerry) of which 

 county Floras are in preparation. In the case of the remaining less 

 known divisions, the desirability of making the information as 

 detailed as possible, as a foundation for further work, has been 

 ke]Dt in view. Where the authorities for localities quoted are 

 omitted for lack of space, the records thus curtailed are those which 

 have been xDublished in accessible books. 



Explanation of Details. 



Headings. — As stated in the preface, the order of the species, 

 and their nomenclature, are identical with the order and nomen- 



