BOTANICAL BIBLIOGRAPHY OF THE BRITISH COUNTIES. 67 
objects of the picture are made up by the juxtaposition of several 
pieces, each thus well representing a county with its artificial 
boundaries. ; 
It is unfortunate, but was at the time unavoidable, that 
our leading topographical botanist, Mr. Watson, in constructing his 
eighteen primary ‘ provinces,” maintained the county boundaries. 
His plan was to form ‘ groups of counties, which together constitute 
the basin of a principal river, or have some other pecu iarity in 
common,” from which it of course resulted ‘that, though distinguished 
all ; 
The following list of books and papers on local botany is arranged 
under the heads of the counties which follow the sequence of Mr. 
the sa an 
an outline of the natural drainage, as an indication for dividing the 
county into districts. 
Then follow the local Floras, which are thus arranged :—1. When 
there exists a complete Flora of the county it is given first, with some 
harac 2. The partial F 
classed in this way: first come references to the county lists of 
“rarer plants” in the following general botanical guides :—Gibson’s 
edition of Camden’s “‘ Britannia,” 1695, the lists communicated by 
Ray, except Middlesex by Petiver (Gibs.).—Appendix to T. Martyn’s 
“ Plante Cantabrigienses,” 1768 (Mart.).—Gough’s edition of Cam- 
nia,” 1789, the lists communicated by various botanists 
(Gough).—Turner and Dillwyn’s “ Botanist’s SE et (B. G.).— 
Bs ’ B 
otanis w B. G.). 
Cooper’s ‘‘Flora Metropolitana,” 1836-37 (Cooper). Then follow 
references to other county lists of rarities or se ected species, and 
occasionally to books containing scattered information on the botany 
istrict i Lastly ¢ 
perty of 
common scientific property, as well as of other public collections. — 
It is evident that the plan here adopted does not exhaust all existing 
plant-records. It is primarily on 
ee eee 
* The natural watersheds of England are well shown in the small “ Physical 
Map of England and Wales,’ published by Stanford, Charing Cross. 
