Xan*thid"i*um (?), n.; pl. Xanthidia (#). [NL., fr. Gr. xanthos yellow.] (Bot.)

A genus of minute unicellular algae of the desmids. These algæ have a rounded shape and are armed with glochidiate or branched aculei. Several species occur in ditches, and others are found fossil in flint or hornstone.


© Webster 1913

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