This is a simple to use multi-access computer key that enables the user to find the species name and characteristics of any British or Irish lichen

It is divided into field and microscopical characters and any information available may be entered in any order to obtain a solution. With the majority of species, a few characters, noted in the field, are sufficient to identify the species. A brief note on each species further assists separation of similar species.

This multi-access computer key was originally based on The Lichen Flora of Great Britain and Ireland by O.W. Purvis et al (1992). It includes every species mentioned in that book plus many that have been more recently described or added to the British list. The nomenclature agrees with the most recent version of the BLS checklist.

It can therefore be used to identify any of the lichens contained in the above Flora. In addition, it includes many species that have been added to the British and Irish lists since that time.

Lichen-Identifier will run on a PC with a 486 DX or later processor running Windows NT, 95, 98, 2000, XP or Vista. We regret that it is not available for Apple Mac except under PC emulation or ‘Boot Camp’.

Improvements in Version 3 of Lichen-Identifier include: Completely revised data, where possible, using the completed sections of the new Flora, plus many recently described species. The conservation evaluation from A Conservation Evaluation of British Lichens by R.G. Woods & B.J. Coppins is given for each species. Over 750 colour photographs of improved quality and with a scale added to each one. Every distribution map has been updated and include now maps of lichenicolous fungi although these are not part of the actual key.

Please note that this program includes a DataPower 2 reader which will run on an individual computer. It will not run on a multiple system in client/server mode. If you are using a server system, a site licence for DataPower 2 is required.

For members of the British Lichen Society

• Upgrade from Version 2 is £13.00 (plus £1.50 p&p)
• Version 3 is £22.00 (including p&p)(Euro 35.00 inc p&p)

For non-members

• Upgrade from Version 2 is £13.00 (plus £1.50 p&p)
• Version 2 is £26.00 (plus £2.50 p&p)(Euro 40.00 inc p&p)

Payment

• Orders from the U.K. ~ Please make sterling cheque payable to Frank S. Dobson and send to:
  
  Mr. F.S. Dobson,
  57 Acacia Grove,
  New Malden,
  Surrey,
  KT3 3BU.
  
  
• Orders from abroad ~ Please email Frank Dobson at franks@dobson57.freeserve.co.uk for advice about payment methods.

We regret that we are unable to accept card payments or non-sterling cheques.

A donation will be made to the British Lichen Society for each copy sold.