SUBPHYLUM KICKXELLOMYCOTINA
- CLASS KICKXELLOMYCETES
- Parasites of other fungi or filaments have crosswalls (septa) that are perforated and have plugs.
- ORDER KICKXELLALES
- Filamentous; hyphae have septa with lens-shaped cavities; asexual reproduction by sporangiola (a merosporangium of single spores). Saprobes or parasites of other fungi.
- Dipsacomyes, Kickxella, Coemansia, Linderina, Martensella, Martensiomyces, Spirodactylon, Spiromyces.
- ORDER DIMARGARITALES
- Filamentous; hyphae with septa which have a lens-shaped cavity; asexual reproduction by merosporangium of bispores. Zygospore ornamented. Parasites of fungi, especially Mucorales.
- Dimargaris, Dispira, Spinalia, Tieghemiomyces.
- ORDER HARPELLALES (SMITTALES)
- Mostly obligate parasites attached to chitinous gut linings, especially of hindgut, or, externally, to exoskeleton. Vegetative phase much reduced, unbranched and coenocytic, or branched, septate and attached by a basal cell; asexual reproduction by exogenous spores with appendages (trichospores), arthrospores, sporangiospores or even amoeboid cells; resting spores (zygospores) produced by some, by fusion of protoplasts.
- Smittum, Furculomyces, Legeriomyces, Harpella, Enterobryus, Orphella, Zygopolaris.