A fungus occurs in aquatic habitats or on decaying wood in moist places, has aseptate coenocytic mycelium and produces a
Phycomycetes commonly occur in aquatic habitats, on decaying wood in moist places or as plant parasites. Their mycelium is aseptate and coenocytic, and they produce motile zoospores or non-motile aplanospores inside sporangia.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Fungi - Phycomycetes Ascomycetes Basidiomycetes