Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Spinellus is a genus of fungi in the Phycomycetaceae family. The widely distributed genus contains three species of pin mold that are parasitic on agaric mushrooms. The genus was circumscribed by Phillippe Edouard Leon van Tieghem in 1875. Zygomycota, or zygote fungi, is a phylum of fungi. The name comes from zygosporangia, where resistant spherical spores are formed during sexual reproduction. Approximately 1060 species are known. They are mostly terrestrial in habitat, living in soil or on decaying plant or animal material. Some are parasites of plants, insects, and small animals, while others form symbiotic relationships with plants. Zygomycete hyphae may be coenocytic, forming septa only where gametes are formed or to wall off dead hyphae.