Relating to or characterized by dark pigmentation, typically describing fungi with dark spores or hyphae.
From dematiaceae + -ous (Latin adjective suffix). Describes the pigmentation characteristic of the Dematiaceae family and related fungi.
Mycologists love the word 'dematiaceous' because these dark-pigmented fungi are often the culprits in plant diseases, and their dark color actually helps them survive UV radiation and harsh conditions.
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