A Field Key to Common Churchyard Lichens (and to commoner species found elsewhere on stone, fences and gates)
Introduction and instructions on how to use the key, followed by the detailed key itself, which is illustrated with clear drawings. The colour photos may be used as a quick method of identification, or to confirm the findings of the table of characters, which details 60 of the most common lichens, including species found on stone, fences, gates etc. The advanced key includes about 180 taxa. Spiral binding. 50 pages Colour plates, line drawings.
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