A taxonomic summary and revision of Rozella ( Cryptomycota )
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IMA FUNGUS · 9(2): 383–399 (2018)
Peter M. Letcher1 and Martha J. Powell1 1
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^ = U^@_Z+W RQU corresponding author e-mail: [email protected] Abstract: Rozella is a genus of endoparasites of a broad range of hosts. Most species are known by their
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genome sequenced. Determined in molecular phylogenies to be the earliest diverging lineage in kingdom Fungi, Rozella currently nests among an abundance of environmental sequences in phylum Cryptomycota, superphylum Opisthosporidia \
! " Rozella, provide descriptions of all species, and include a key to the species of Rozella.
ART I CLE
A taxonomic summary and revision of Rozella (Cryptomycota)
Key words: Rozellida Rozellomycota straminipilous fungi
Article info: Submitted: 18 September 2018; Accepted: 8 November 2018; Published: 16 November 2018.
INTRODUCTION Rozella (Cornu 1872) is a genus currently consisting of 27 species of endobiotic, holocarpic, unwalled parasites of a variety of hosts in Oomycota (Heterokontophyta), the Fungi phyla Blastocladiomycota, Monoblepharidomycota, Chytridiomycota, and Basidiomycota, and the green alga Coleochaete (Charophyta). Cornu erected the genus to describe four species, which had in common: (1) a ! "
(for three of the species) that escape through a circular opening that results from the dissolution of a papilla; and (3) the formation of spherical, thick walled resting spores with spiny ornamentations. Cornu’s species were described as R. monoblepharidis polymorphae, R. rhipidii spinosi, R. apodyae brachynematis, and R. septigena; he did not hyphenate the names, but these are to be added (Art.23.1). These names were those used when the species were formally described, but Cornu (1872) interchanged long and short versions of the #$ monoblepharidis polymorphae and monoblepharidis, rhipidii spinosi and rhipidii, and apodyae brachynematis and apodyae. Dick (2001: 246) treated the long and short versions as alternative names, and stated that “the selected epithet is therefore determined by accepted usage” and pointed out that Fischer (1892), Minden (1915), Sparrow (1938), and Karling (1942b) had used the shorter versions, and he followed their choice, rather than the longer versions used by Sparrow (1960) or Karling (1977), “because % & '
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of Cornu’s species are herein subsequently referred to as R. monoblepharidis, R. rhipidii, and R. apodyae. " & ^ et al. 2010), the lineage is now assigned to the Cryptomycota (Jones et al. 2011b), and more recently has been also referred to as Rozellomycota (e.g. Corsaro et a
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