• (n. pl.) A phylum of the vegetable kingdom consisting of the class Myxomycetes. By some botanists it is not separated from the Thallophyta.
division of algae the members of which are commonly known as blue-green algae (q.v.).
Myx·oph'y·ta noun plural [ New Latin ; Greek ... mucus, slime + ... plant.] (Botany) A phylum of the vegetable kingdom consisting of the class Myxomycetes. By some botanists it is not separated from the Thallophyta.