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Phycomycetes or algal fungi is an obsoleteSparrow, F.K. 1960. Aquatic Phycomycetes. 2nd edition. The University of Michigan Press, Ann Arbor, Michigan, [1].Dick, M. W. (2001). Straminipilous fungi. Dordrecht, the Netherlands: Kluwer Academic Publishers. 670 p., [2]. polyphyletic taxon for certain fungi with aseptate . It is used in the Engler system. Asexual reproduction takes place by zoospores (motile) or by Aplanospores (non-motile). These spores are endogenously produced in sporangium. A zygospore is formed by fusion of two gametes. These gametes are similar in morphology (Isogamy) or dissimilar (Anisogamy or Oogamy).
The class Phycomycetes has been abolished and in its place exists Zygomycetes, Chytridiomycetes, Plasmodiophoromycetes, Hyphochytridiomycetes, Trichomycetes (including Harpellales, Asellariales, Eccrinales and Amoebidiales) and . Still, "Phycomycetes" can be used to refer to all the above-mentioned classes as a whole.
The members of this group are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. The mycelium is aseptate and coenocytic. Asexual reproduction by zoospore or by aplanospore. A zygospore is formed by the fusion of two . Examples are Mucor, Rhizopus, Albugo, Saprolegnia.
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