iv PREFACE, 
Sm. MSS., the entries from which, as well as from the other 
sources, are now, I believe, correct. 
The nomenclature and order of arrangement adopted for 
the Phanerogams follow for the most part those of the 9th 
edition of the London Catalogue, except that the Conifere are 
placed after the Grasses; for the Mosses the Handbook of Messrs. 
Dixon & Jameson has been employed, except that the Sphagna 
are arranged on the Warnstorfian system as interpreted by 
Mr. Horrell, and the Harpidioid Hypna according to Mr. 
Wheldon’s article on them in the Natwralist for March, 1902, 
whilst for the Hepatics the excellent Monograph of Mr. Pearson 
has been followed. The Characee are placed last, as being most 
nearly allied to Alga. 
The author will be glad of, and grateful for, any notes of 
further botanical discoveries or matter interesting as bearing on 
the Flora of the County. 
Thanks are due to many helpers who have assisted in various 
ways in the production of the present work, especially Pro- 
fessor T. Barker, for help in the investigation of the Mosses; 
Professor J. W. Carr and Mr. T. Gibbs, for lsts of plants and 
co-operation in field work; Messrs. J. & H. Groves, for help with 
the Characee ; Mr. J. F. Hanbury and Rev. A. Ley, for help 
with Hieracia; the latter also for lst of Mosses and aid in 
field work; Mr. G. A. Holt, list of Hepatics ; Rev. E. F. Linton, 
for much assistance in field work and determination of specimens ; 
Mr. S. M. Macvicar, for considerable assistance in the determina- 
tion of Hepatics ; Dr. H. R. Mill, for an instructive and valuable 
paper on the County rainfall; Rev. W. M. Rogers, for much help 
