Fungalpedia – Note 777, Chloridium

 

Chloridium. Link.

Citation when using this data: Karimi O et al. 2025 (in prep.) – Fungalpedia, Ascomycota.

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

Classification: Chaetosphaeriaceae, Chaetosphaeriales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Chloridium (Chl.), was introduced by Link (1809) and typified by the hyphomycetous species Chl. viride (currently Chl. virescens). Réblová et al. (1999) considered Melanopsammella as the sexual morph of Chloridium sensu stricto, Gonytrichum, and Chl. preussii. Later, Réblová et al. (2016) proposed that Gonytrichum, Melanopsammella, and Chloridium are synonyms, which was later confirmed by Hyde et al. (2020). Based on polyphasic approaches, Réblová et al. (2022) defined Chloridium as a monophyletic genus distributed across eight sections. Chloridium comprises over 30 species, mostly isolated as saprobes from decaying plants or soil in freshwater and terrestrial habitats, predominantly in moist environments (Réblová et al. 2022, Hyde et al. 2024). To date, only one unidentified Chloridium taxon (as Chloridium sp.) has been reported from peat swamp forests (Pinnoi et al. 2006). In this study, we introduce Chl. narathiwatense as a novel species on Eleiodoxa conferta from the peat swamp forest in Narathiwat, Thailand.

Type species: Chloridium viride Link, Mag. Gesell. naturf. Freunde, Berlin 3(1-2): 13 (1809)

Other accepted species: Species Fungorum – search Chloridium.

image

 

Figure 1 – Chloridium narathiwatense (MFLUCC 24-0595, ex-type). a, b Colonies on the CMA. c Surface and reverse overview of the culture. d–i Conidiophores and conidiogenous cells. j, k Conidia. Scale bars: a, b =100 μm, d–g = 20 μm, h, i = 10 μm, j, k = 5 μm.

 

References

Hyde KD, Dong Y, Phookamsak R, Jeewon R et al. 2020 – Fungal diversity notes 1151—1276: taxonomic and phylogenetic contributions on genera and species of fungal taxa. Fungal Diversity 100, 5–277.

Hyde KD, Noorabadi MT, Thiyagaraja V, He MQ, et al. 2024 – The 2024 Outline of Fungi and fungus-like taxa. Mycosphere 15, 5146–6239. 

Link HF. 1809 – Observationes in ordines plantarum naturales. Dissertatio I. Magazin der Gesellschaft Naturforschenden Freunde Berlin 3, 3–42.

Pinnoi A, Lumyong S, Hyde KD, Jones EBG et al. 2006 – Biodiversity of fungi on the palm Eleiodoxa conferta in Sirindhorn peat swamp forest, Narathiwat, Thailand. Fungal Diversity 22, 205–218.

Réblová M, Hernández-Restrepo M, Sklenář F, Nekvindová J et al. 2022 – Consolidation of Chloridium: new classification into eight sections with 37 species and reinstatement of the genera Gongromeriza and Psilobotrys. Studies in Mycology 103, 87.

Réblová M, Seifert KA, Fournier J, Štěpánek V. 2016 – Newly recognised lineages of perithecial ascomycetes: the new orders Conioscyphales and Pleurotheciales. Persoonia 37, 57–81.

Réblová M. 1999 – Chaetosphaeriaceae, a new family for Chaetosphaeria and its relatives. Sydowia 51, 49–70.

 

Entry by

Omid Karimi, State Key Laboratory of Discovery and Utilization of Functional Components in Traditional Chinese Medicine & School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550004, China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand

 

Published online 28 July 2025

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