1) Class 2) Class zygomycetes 
(from the article `fungus`) ...In Achlya (phylum Oomycota, kingdom Chromista) a sterol pheromone called antheridiol induces the formation of gametangia and attracts the male to ...
<fungus> A class of fungi that usually has a coenocytic mycelium with chitinous cell walls. Sexual reproduction normally involves the formation of zygospores.The group lacks motile spores. ... (09 Oct 1997) ... 
(zi″go-mi-se´tēz) a class of saprobic and parasitic fungi of the phylum Zygomycota; important pathogenic organisms are in the orders Entomophthorales and Mucorales.
[n] - class of fungi coextensive with subdivision Zygomycota
class Zygomycetes noun class of fungi coextensive with subdivision Zygomycota