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|Noun||1.||subdivision Mastigomycotina - fungi in which the spores and gametes are motile; in some systems placed in the Phycomycetes group with the Zygomycota|
division - (botany) taxonomic unit of plants corresponding to a phylum
class Oomycetes, Oomycetes - nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists
Chytridiomycetes, class Chytridiomycetes - a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants