More specifically the Basidiomycota include these groups: Basidiomycota are filamentous fungi composed of hyphae except for basidiomycota-yeast; refer yeast for more information and reproduce sexually via the formation of specialized club-shaped end cells called basidia that normally bear external meiospores usually four.
Fungi are almost entirely multicellular with yeast, Saccharomyces cerviseae , being a prominent unicellular fungus , heterotrophic deriving their energy from another organism, whether alive or dead , and usually having some cells with two nuclei multinucleate , as opposed to the more common one, or uninucleate , condition per cell. Ecologically this kingdom is important along with certain bacteria as decomposers and recyclers of nutrients.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree.
Pucciniomycotina Ustilaginomycotina Agaricomycotina Incertae sedis no phylum. Basidiomycota is a major division or phyla of the kingdom Fungi , whose members typically are characterized by the presence of a basidium, a microscopic reproductive structure where sexual spores are produced.
Fungi of the Basidiomycota, representing major pathogen lineages and mushroom-forming species, exhibit diverse means to achieve sexual reproduction, with particularly varied mechanisms to determine compatibilities of haploid mating partners. For species that require mating between distinct genotypes, discrimination is usually based on both the reciprocal exchange of diffusible mating pheromones, rather than sexes, and the interactions of homeodomain protein signals after cell fusion.
This is a picture of an Amanita Muscaria http: A typical fungus consists of hyphae , which form the fungal body.