Gyroflexus

Gyroflexus is a monotypic genus with a yellowish-ivory colored omphalinoid agaric in the Hymenochaetales that grows on living Sphagnum[1][2][3] Phylogenetically related agarics are in the genera Rickenella, Blasiphalia, Loreleia, Cantharellopsis and Contumyces, as well as the stipitate-stereoid genera Muscinupta and Cotylidia and clavaroid genus, Alloclavaria.[4] Gyroflexus brevibasidiatus, the type, amongst the vaguely omphalinoid genera is distinguished by its small, mammiform pileus, growth on Sphagnum, and lack of cystidia.[5]

Gyroflexus
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Hymenochaetales
Family:
Repetobasidiaceae
Genus:
Gyroflexus

Raithelh. (1981)
Type species
Gyroflexus brevibasidiatus
(Singer) Raithelh. (1981)

Etymology

The etymology of the name Gyroflexus is not known. When coined in a prepublication advertisement, it clearly was intended to be applied to several species, although only one, the type was included. Possibly it refers to the slightly undulating stipe in contrast to the very straight stipes of related genera like Rickenella for which the same author coined that name years earlier. The name Sphagnomphalia is synonymous.

References
  1. Larsson, K.-H.; et al. (2006) [2007]. "Hymenochaetales: a molecular phylogeny for the hymenochaetoid clade". Mycologia. 98 (6): 926–936. doi:10.3852/mycologia.98.6.926. PMID 17486969.
  2. Redhead, S.A.; et al. (2002a). "Phylogeny of agarics: partial systematics solutions for bryophilous omphalinoid agarics outside of the Agaricales (euagarics)". Mycotaxon. 82: 151–168.
  3. Redhead, S.A.; et al. (2002b). "Phylogeny of agarics: partial systematics solutions for core omphalinoid genera in the Agaricales (euagarics)". Mycotaxon. 83: 19–57.
  4. Dentinger, B.T.M.; McLaughlin, D.J.' (2006). "Reconstructing the Clavariaceae using nuclear large subunit rDNA sequences and a new genus segregated from Clavaria". Mycologia. 98 (5): 746–762. doi:10.3852/mycologia.98.5.746. PMID 17256578.
  5. Redhead, S.A. (1985). "Omphalina brevibasidiata". Fungi Canadenses. 294.
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