Fungalpedia – Note 3259, Marasmiineae

 

Marasmiineae Aime, Dentinger & Gaya, in Dentinger, Gaya, O’Brien, Suz, Lachlan, Díaz-Valderrama, Koch & Aime, Biol. J. Linn. Soc. 117(1): 26 (2015).

Citation when using this data: He MQ et al. 2024 – Fungalpedia.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Agaricales, Agaricomycetidae, Agaricomycetes, Agaricomycotina, Basidiomycota, Dikarya, Fungi.

In Marasmiaceae, a new genus Paramarasmius Antonín & Kolařík (Antonín et al. 2022), forming a monophyletic lineage within this family, was described with the type species P. palmivorus (Sharples) Antonín & Kolařík, a causal agent for bunch rot disease on oil palm.

In Omphalotaceae, Petersen and Hughes (2021) accepted Collybiopsis [as Collybiopsis Earle, not Collybiopsis (J. Schröt.) Earle] as a correct generic name for Marasmiellus Murrill. This concept, however, probably needs a multi-gene analysis, if this large group really represents a monophyletic lineage. Petersen and Hughes (2020) described two new genera – Paramycetinis as a lineage related to Mycetinis, and Pseudomarasmius accommodating species previously placed in Marasmius (clade D by Oliveira et al. 2019) and related to some Rhodocollybia species.

Consiglio et al. (2021), on the basis of morphological and phylogenetic analysis, emended Porotheleaceae to also encompass agaricoid taxa with descriptions of two new genera, Hydropodia and Pseudohydropus. Vizzini et al. (2022) proposed an updated taxonomic arrangement of Cyphellaceae and Porotheleaceae, based on phylogenetic results of analysis of a large dataset. Vizzini et al. (2020b) also included their newly described genus Chrysomycena in this family.

Type genus: Marasmius Fr. 1836.

Other accepted species: Species Fungorum – search Marasmiineae.

 

References

Antonín V, Hosaka K, Kolařík M 2022 – Taxonomy and phylogeny of Paramarasmius gen. nov. and Paramarasmius mesosporus, a worldwide distributed fungus with a strict ecological niche. Plant Biosystems 157(2):286–293.

Consiglio G, Vizzini A, Cooper J, Marchetti M et al. 2021 – I membri agaricoidi del genere Porotheleum (Porotheleaceae, Agaricales), Porotheleum emend., Porotheleaceae s. stricto e nuovi generi per Agaricus floccipes e Mycena subalpine. 99–151; The agaricoid members of the genus Porotheleum (Porotheleaceae, Agaricales), Porotheleum emend., Porotheleaceae s. stricto, and new genera for Agaricus floccipes and Mycena subalpina. Rivista di Micologia 64(2):99–190.

Oliveira JJ, Vargas-Isla R, Cabral TS, Rodrigues DP, Ishikawa NK 2019 – Progress on the phylogeny of the Omphalotaceae: Gymnopus s. str., Marasmiellus s. str., Paragymnopus gen. nov. and Pusillomyces gen. nov. Mycological Progress 18:713–739.

Petersen RH, Hughes KW 2020 – Two new genera of gymnopoid/marasmioid euagarics. Mycotaxon 135(1):1–95.

Petersen RH, Hughes KW 2021 – Collybiopsis and its type species, Co. ramealis. Mycotaxon 136:263–349.

Vizzini A, Consiglio G, Marchetti M, Borovička J et al. 2022 – New data in Porotheleaceae and Cyphellaceae: epitypification of Prunulus scabripes Murrill, the status of Mycopan Redhead, Moncalvo & Vilgalys and a new combination in Pleurella Horak emend. Mycological Progress 21:44.

Vizzini A, Picillo B, Perrone L, Dovana F 2020b – Chrysomycena perplexa gen. et sp. nov. (Agaricales, Porotheleaceae), a new entity from the lazio region. Rivista Micologica Romana, Bolletino Amer 107(35):96–107.

 

Entry by

Mao-Qiang He, State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China.

 

Published online 24 September 2026.

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