Agaricales » Agaricales genera incertae sedis


Gloioxanthomyces Lodge, Vizzini, Ercole & Boertm., in Lodge et al., Fungal Diversity 64(1): 49 (2013)

Etymology: Gloio glutinous, xanthoyellow, mycesfungus.

Diagnosis: Pileus and stipe yellow or orangish yellow, viscid; lamellae arcuate-decurrent, yellow, with a gelatinized or subgelatinized edge, edged often darker (translucent). Basidiospores ellipsoid or subglobose, Q 1.01.6, mean Q 1.21.3, guttulate in KOH, with a wide hilar appendix, inamyloid, acyanophilic, hyaline, smooth; basidia usually 4-sterigmate, with basal clamp connection occasionally a moderate medallion type, short, 3040 μm long, ratio of basidia to basidiospore length 45; pileipellis and stipitipellis an ixotrichodermium or ixocutis; trama not dextrinoid; lamellar trama subregular, central strand not differentiated, elements cylindric to subglobose, some subglobose cells highly inflated to 1030 μm diam., subhymenium of tightly interwoven small diameter hyphae, not gelatinized except at the lamellar edge; edge gelatinized or subgelatinized; cheilocystidia clavate, simple or slightly lobed. Clamp connections present throughout, occasionally a modest medallion type, not toruloid. It differs from Chromosera subg. Oreocybe in presence of a gelatinized lamellar edge and cheilocystidia, and basidiospores with smaller Q (1.21.3 vs. 1.41.8) and never constricted. It differs from Chromosera subg. Chromosera in absence of dextrinoid reactions in the context, absence of pigment globules in the pileipellis and lamellar edge gelatinized with cheilocystidia present. It differs from Chromosera subg. Subomphalia in absence of violaceous pigments, viscid rather than dry surfaces, and absence of a central strand in the lamellar trama.

Index Fungorum number: IF804073

Type species: Gloioxanthomyces vitellinus (Fr.) Lodge, Vizzini, Ercole & Boertm., in Lodge et al., Fungal Diversity 64(1): 50 (2013)



Gloioxanthomyces nitidus (Berk. & M.A. Curtis) Lodge, Vizzini, Ercole & Boertm. 2013

Gloioxanthomyces vitellinus (Fr.) Lodge, Vizzini, Ercole & Boertm. 2013



Lodge, D.J.; Padamsee, M.; Matheny, P.B., Aime, M.C.; Cantrell, S.A.; Boertmann, D.; Kovalenko, A.; Moncalvo, J.-M.; Vilgalys, R.; Vizzini, A.; Larsson, E.; Lücking, R.; Griffith, G.; Smith, M.; Norvell, L.; Desjardin, D.E.; Redhead, S.; Ovrebo, C.L.; Lickey, E.B.; Ercole, E.; Hughes, K.W.; Courtecuisse, Young, A.; Binder, M.; Minnis, A.; Lindner, D.L.; Ortiz-Santana, B.; Haight, J.;Læssøe, T.; Baroni, T.J., Geml, J., Hattori, T.R. 2013. Molecular phylogeny, morphology, pigment chemistry and ecology in Hygrophoraceae (Agaricales). Fungal diversity. 64:1-99


About Basidiomycota

The webpage Basidiomycota provides an up-to-date classification and account of all genera of the phylum Basidiomycota.


Supported by 

Thailand Science Research and Innovation (TSRI)

project entitled:

"Macrofungi diversity research from the Lancang-Mekong Watershed and surrounding areas"

(Grant No. DBG6280009)


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