B.  Edwards, Aptroot, A., Hawksworth, D. L., and James, P. W., ?Lecanora Ach. in Luyken (1809)?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009, pp. 465-502.

P. W.  James, ?Japewiella?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009, pp. 449-450.

B.  Edwards, Aptroot, A., Hawksworth, D. L., and James, P. W., ?Lecanora?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009, pp. 465-502.

A.  Fletcher, Purvis, O. W., and James, P. W., ?Lecidella?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009, pp. 519-525.

C. J. B.  Hitch and Hawksworth, D. L., ?Pyrrhospora?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009.

A.  Aptroot, Gilbert, O. L., Hawksworth, D. L., and Coppins, B. J., ?Lecidea?, in Lichens of Great Britain and Ireland, London: British Lichen Society, 2009, p. 19 pp.