BRITISH LICHENS

PREFACE TO SECOND EDITION
THE preparation of the new edition has given opportunity for
revision and for the incorporation of the large amount of material
received at the Museum since the publication of the first edition
in 1911. These additions include the herbarium of J. R. Martindale,
a set of Dr. James Stirton's lichens, and some of the later
issues of the Rev. W. Johnson's exsiccataJ.
Some of the families included in the Appendix to Part 1. have
now been incorporated in Part II.
A classified list of species of Microfungi recorded by British
authors as Lichens has been added; and an Appendix including
emendations and additions to Part I. (1918) brings the whole
work up to date.
A. B. RENDLE.
DEPARTMENT OF BOTANY,
BRITISH MUSEUM (NATURAL HISTORY),
CROMWELL ROAn, LONDON, S.W.
January 1926.
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