Fungalpedia – Note 2500, Platytrachelon

 

Platytrachelon. Réblová.

Citation when using this data: Hyde KD et al. 2021 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Platytrachelaceae, Incertae sedis, Diaporthomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

 

Platytrachelon Réblová was introduced by Réblová et al. (2013) to accommodate Platytrachelon abietis (Réblová) Réblová which was originally introduced as Ceratosphaeria abietis Réblová in Ceratosphaeriaceae, Magnaporthales (Réblová 1998). Réblová et al. (2013) re-examined the holotype of this species and provided a detailed description and illustration for this species which include both sexual and asexual morphs. In the multigene phylogenetic analysis of the previous study, Ceratosphaeria abietis formed a sister clade with Papulosaceae. Due to the morphological differences, Réblová et al. (2013) placed Platytrachelon abietis in Sordariomycetes incertae sedis. Wijayawardene et al. (2018) placed it under Papulosaceae, while Hyde et al. (2020a) treated it in Diaporthomycetidae incertae sedis. Our phylogenetic analysis falls with the treatment of Hyde et al. (2020a), and the result showed that Platytrachelon abietis clustered with Proliferophorum thailandicum with low support within Diaporthomycetidae. We follow Hyde et al. (2020a) and placed this genus in Diaporthomycetidae incertae sedis. However, our divergence time estimates showed that Proliferophorum thailandicum diverged approximately 76 MYA, which satisfied with the range of a family (50–130 MYA), therefore, may consider raising to family level. However, more collections and phylogenetic analyses are necessary to clarify the phylogenetic placement of this genus. 

 

Type species: Platytrachelon abietis (Réblová) Réblová, Mycologia 105(2): 467 (2013).

Other accepted species: Species Fungorum – search Platytrachelon.

 

References

Réblová M 1998 – Fungal diversity in the Czech Republic. New species of Apiorhynchostoma, Capronia, Ceratosphaeria and Lasiosphaeria. Sydowia 50:229–251.

Réblová M, Untereiner WA, Réblová K 2013 – Novel evolutionary lineages revealed in the Chaetothyriales (Fungi) based on multigene phylogenetic analyses and comparison of ITS secondary structure. PLoS ONE 8:63547.

Wijayawardene NN, Hyde KD, Lumbsch HT, Liu JK, Maharachchikumbura SSN, Ekanayaka AH, Tian Q, Phookamsak R 2018 – Outline of Ascomycota: 2017. Fungal Divers 88:167–263.

 

Entry by

Kevin David Hyde, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Research Centre of Microbial Diversity and Sustainable Ultilization, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, PR China

 

Published online 28 May 2026

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