1 Any of several plant diseases which are characterized by the formation of dry, shrivelled lesions; they are usually due to fungal infection.
2 A serious type of timber decay in buildings, caused by the fungus Serpula lacrymans. Typically, infected timber develops longitudinal and cross-grain cracking and bears a surface growth of whitish mycelium; leathery fruit bodies bearing rust-coloured spores may appear.
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