Fungalpedia – Note 87 Synchaetomella


Synchaetomella Decock & Seifert

Citation when using this entry: Su et al., in prep – Fungalpedia, Discomycetes II. Mycosphere.

Index FungorumFacesoffungiMycoBankGenBank, Fig 1.

Following morphological studies and the phylogenetic analyses of SSU, Decock et al. (2005) established Synchaetomella and designated Synchaetomella lunatospora as the type species, without precise order and family affinities. Baral (2015) relied on the phylogeny of Johnston et al. (2014) to introduce Chaetomellaceae within Helotiales and transferred Synchaetomella into Chaetomellaceae (Helotiales) as the genus was morphologically and phylogenetically closely related to Zoellneria and Discohainesia. Synchaetomella was reported as a saprobic genus (Wijayawardene et al. 2017). Synchaetomella is a hyphomycete genus characterized by macronematous conidiophores, synnematous conidiomata with a capitulum, phialidic conidiogenesis, terminal or lateral, acropleurogenous conidiogenous cells, and falcate, allantoid or ellipsoidal, hyaline conidia accumulating in a mucilaginous mass (Decock et al. 2005Crous et al. 2012Fiuza et al. 2016). The genus includes three species (Decock et al. 2005Crous et al. 2012Fiuza et al. 2016). Synchaetomella acerina was found on leaves of Acer rubrum in the USA (Crous et al. 2012), while S. aquatica was found on decaying submerged leaves of Calophyllum brasiliense in Brazil (Fiuza et al. 2016). Synchaetomella lunatospora was isolated from decaying leaves of angiosperms in a tropical forest of Singapore (Decock et al. 2005).

Type species: Synchaetomella lunatospora Decock, G. Delgado & Seifert

Other accepted species:

Synchaetomella acerina Seifert

Synchaetomella aquatica Fiúza, Gusmão & R.F. Castañeda


Figure 1 – Synchaetomella lunatospora (MUCL 43804). a Synnema. b Acropleurogenous chains of phialides. c Conidia. Scale bars: a = 150 μm, c, d = 10 μm. Re-drawn from Figure 1 and 2 of Decock et al. (2005).



Baral HO. 2005 – Index Fungorum no. 225. Taxonomic novelties: H. O. Baral. Accessed at: Index Fungorum.

Crous PW, Shivas RG, Wingfield MJ, Summerell BA et al. 2012 – Fungal Planet description sheets: 128–153. Persoonia-Molecular Phylogeny and Evolution of Fungi 29, 146–201.

Decock C, Rodriguez GD, Seifert K. 2005 – Taxonomy and phylogeny of Synchaetomella lunatospora, a new genus and species of synnematous fungi from Southeast Asia. Antonie van Leeuwenhoek 88, 231–240.

Fiuza PO, Gusmão LF, Castañeda-Ruiz RF. 2016 – Synchaetomella aquatica sp. nov. from submerged leaves from Brazil. Mycotaxon 130, 1135–1139.

Index Fungorum. 2023 – Accessed at

Johnston P, Park D, Baral HO, Galan R et al. 2014 – The phylogenetic relationships of Torrendiella and Hymenotorrendiella gen. nov. within the Leotiomycetes. Phytotaxa 177, 1–25.

Wijayawardene NN, Hyde KD, Rajeshkumar KC, Hawksworth DL et al. 2017 – Notes for genera: Ascomycota. Fungal Diversity 86, 1–594.

Entry by

Hongli S, Yunnan Key Laboratory of Fungal Diversity and Green Development, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, 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


(Edited by: K. W. Thilini Chethana & Kevin D. Hyde)