A taxonomic summary and revision of Rozella ( Cryptomycota )

is a genus of endoparasites of a broad range of hosts. Most species are known by their morphology and host specificity, while only three have been examined ultrastructurally and had portions of their genome sequenced. Determined in molecular phylogenies to be the earliest diverging lineage in kingdom , currently nests among an abundance of environmental sequences in phylum , superphylum . Here we briefly summarize a history of , provide descriptions of all species, and include a key to the species of .