Category:Xanthidium

Xan*thid"i*um, n.; pl. Xanthidia (#). [nl., fr. Gr. xanqo`s yellow.] (bot.)

Defn: a genus of minute unicellular algæ 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.