Fungalpedia – Note 2140, Chromolaenomyces

 

Chromolaenomyces. Mapook & K.D. Hyde.

Citation when using this data: Hongsanan S et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank

Classification: Thyridariaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

 

Notes – Chromolaenomyces was introduced to accommodate Chromolaenomyces appendiculatus as a saprobe on dead stems of Chromolaena odorata by Mapook et al. (2020). It is characterized by coriaceous, globose to subglobose, light brown to brown cylindrical ascomata with a protruding ostiole, cylindrical asci with a short pedicel and 1-seriate, irregular arrangement, oval to broadly fusiform, aseptate ascospores with a narrow sheath, drawn out to form polar appendages from both ends. These characters differentiate it from Thyridariella which has clavate asci with moderately long pedicel and muriform ascospores, however, Chromolaenomyces species have cylindrical asci with a short pedicel and aseptate ascospores (Devadatha et al. 2018b, Mapook et al. 2020). Phylogenetically, Chromolaenomyces appendiculatus forms a distinct clade and a sister relationship with Thyridariella mangrovei (Mapook et al. 2020). Therefore, Chromolaenomyces was introduced with one species based on multi-gene analyses with LSU, ITS, rpb-2, SSU and tef1 sequence data and its morphological distinctness.

 

Type species: Chromolaenomyces appendiculatus Mapook & K.D. Hyde, Fungal Divers 101: 96 (2020).

Other accepted species: Species Fungorum – search Chromolaenomyces.

 

References

Devadatha B, Sarma VV, Jeewon R, Wanasinghe DN et al. 2018b – Thyridariella, a novel marine fungal genus from India: morphological characterization and phylogeny inferred from multigene DNA sequence analyses. Mycological Progress 17, 791–804.

Mapook A, Hyde KD, McKenzie EHC, Gareth Jones EBG et al. 2020 – Taxonomic and phylogenetic contributions to fungi associated with the invasive weed Chromolaena odorata (Siam weed). Fungal Diversity 101, 1–175.

 

Entry by

Sinang Hongsanan, Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Science and Oceanography, Shenzhen University, Shenzhen 518060, People’s Republic of China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50002, Thailand

 

Published online 23 March 2026 

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