species, was subsequently used in 1904, to represent self-fertile species when the concept of two major mating strategies were developed for the fungi. These strategies are homothallism for self-fertile fungi and heterothallism for self-incompatible, outcrossing fungi. Ecology Most Mucoralean species are saprotrophic, and grow on organic substrates (such as fruit, soil, and dung). Some species are parasites or pathogens of animals, plants and fungi. A few species cause human and animal disease. References Voigt & Wöstemeyer, 2001 Mucorales in Bryce Kendrick's textbook, The Fifth Kingdom. Mucorales at Zygomycetes.org Zygomycota Fungus orders