404 FLORA OF OXFORDSHIRE. 
that is required, and much may be done with no further assistance than a 
pocket lens. 
For books on the subject, Wilson’s Bryologia Britannica, though 
unfortunately out of print, may be seen in the Radcliffe Library at the 
Museum, as well as the larger Bryologia Europea of Bruch and Schimper. 
These works contain figures and descriptions of every detail in the struc- 
ture and economy of Mosses; as a useful handbook there is none better 
than Hobkirk’s Synopsis of British Mosses, Edition 2nd, and the more 
advanced student can obtain Schimper’s excellent Synopsis Muscorum 
Europeorwm, written in very easy Latin, while Dr. Braithwaite’s British 
Moss-Flora, now in progress and partially published will present when 
finished a splendid work of elaborate completeness, containing detailed 
drawings and descriptions of every British species. The literature of 
Hepaticee is somewhat less ample and convenient than that of Mosses, 
but Cooke’s illustrated Catalogue, published at trifling price by Science- 
Gossip (Hardwicke), will be found very useful, and it is understood that 
Dr. Carrington is about to complete his larger work, so long deferred. 
Hooker’s splendid British Jungermannie will also be found in the 
Radcliffe Library. 
A good deal of difference of opinion exists amongst writers on the 
subject of classification and arrangement. I have followed here nearly 
the same order that was adopted in the ‘London Catalogue’ (1881), 
which accords with Jeger’s Adumbratio Muscorum, and in essential 
features with Schimper’s Synopsis, differing but little from Wilson’s 
Bryologia Britannica. 
It will probably be observed that the localities referred to lie mostly 
in the middle portion of the county and within a limited distance from 
Oxford. In fact I have but very imperfectly worked the southern ex- 
tremity, and still more so the northern, I could never ascertain the 
existence of a coadjutor resident in those parts, and flying visits of a 
day or two by no means suffice for the thorough examination of localities, 
especially in the short days of winter. It is therefore probable that many 
interesting species unnoticed by me, and some additions to the following 
enumeration, still await discovery in the country northwards from Wych- 
wood Forest and Bicester,md yet more especially south of Oxford in the 
wooded and beautiful region about Nettlebed, Henley, and the Chiltern 
Hills. 
H. B. 
January 1886. 
