Fungalpedia – Note 348, Cheimonophyllum

 

Cheimonophyllum Singer.

Citation if using this entry: Sysouphanthong et al. (in prep.) – Fungalpedia, Basidiomycota 3. 

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

Classification: Fungi, Basidiomycota, Agaricomycotina, Agaricomycetes, Agaricales, Cyphellaceae.

 Cheimonophyllum is a small saprobic genus belonging to the Cyphellaceae Lotsy., and consisting of four species from temperate zone, with Cheimonophyllum candidissimum [= C. haedinum is the type species (He et al. 2019, Kalichman et al. 2020). Valade & Moreau (2022) transferred Agaricus haedinus to Cheimonophyllum (= C. haedinum), and ITS sequence analysis supported that C. candidissimum is the same species as C. haedinum, that was published earlier. Therefore, the type species of Cheimonophyllum has been changed to C. haedinum. Cheimonophyllum is charaterised by pleurotoid basidiomata, whitish to ivory lamellae, absence of stipe, hyaline globose to subglobose basidiospores, absence of pleurocystidia, cylindrical cheilocystidia with or without branches, trichodermal pileipillis, and presence of clamp connections (Delivorias & Gonou-Zagou 2008, Valade & Moreau 2022).   The current molecular studies based on ITS sequences certified that  Cheimonophyllum belong to Cyphellaceae   (Kalichman et al. 2020, Valade & Moreau 2022). There are four records listed in Index Fungorum (2024) under this genus.

Type species: Cheimonophyllum haedinum (Berk. & M.A. Curtis) Valade & P.-A. Moreau

   Synonymy: none

Other accepted species: (Species Fungorum – search Cheimonophyllum)

 

Figure 1 –  Cheimonophyllum candidissimum (= C. haedinum). a Basidiomata. b Lamellar margin. c Basidiospores. d Basidia. e Cheilocystidia. Bars = 10 μm. Redrawn by Monthien phonemany based on publication of Delivorias & Gonou-Zagou (2008).

 

References

 

Delivorias P, Gonou-Zagou Z. 2008 – On Cheimonophyllum candidissimum from Greece with notes on its implied aphyllophoroid ancestry. Mycotaxon 104, 1–8.

He MQ, Zhao RL, Hyde KD, Begerow D, Kemler M et al. 2019 – Notes, outline and divergence times of Basidiomycota. Fungal Diversity 99, 105–367.

Kalichman J, Kirk, PM, Matheny PB 2020 – A compendium of generic names of agarics and Agaricales. Taxon 69, 425–447.

Valade F, Moreau P-A 2022 – VALIDITÉ ET LEGITIMITÉ DE CHEIMONOPHYLLUM CANDIDISSIMUM (BERK. ET M. A. CURTIS) SINGER. Bull. Soc. mycol. Fr., 138 (3–4), 209–226.

 

 

Entry by

Monthien Phonemany and Phongeun Sysouphanthong, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand

 

(Edited by Kevin D Hyde, Samaneh Chaharmiri-Dokhaharani, Achala R. Rathnayaka)

 

Published online 27 August 2024

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