Overview

Collema


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(order Lecanorales)

A genus of lichens in which the thallus is gelatinous, and typically black when wet. The phycobiont is a cyanobacterium of the genus Nostoc. The thallus range is foliose to fruticose. Species are found on various types of substrate in moist habitats.

Subjects: Plant Sciences and Forestry.


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