Fungalpedia – Note 2241, Mycerema

 

Mycerema Bat., J.L. Bezerra & Cavalc.

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

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Schizothyriaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

Mycerema was introduced to accommodate a single species. The type species was collected from leaves of Vochysiacea sp. in Brazil. The genus was characterized by brown, plane, orbicular, dimidiate, membranous ascomata, with irregular dehiscence, hyaline to subhyaline, reticular, pseudoparenchymatous cells of the peridium, 8-spored, bitunicate, oblong to globose asci and hyaline, claviform, 1-septate ascospores (Batista et al. 1963, Phookamsak et al. 2016). Hyde et al. (2013) examined the type specimen of M. vochysiacearum and synonymized the species as Vizella vochysiacearum. Batista et al. (1963) mentioned that M. vochysiacearum was associated with Vizella bingervilliana and Plenotrichaius hiloensis. Phookamsak et al. (2016) re-examined the same specimen as described in Hyde et al. (2013) and found only Vizella bingervilliana on the type specimen, whereas, Mycerema vochysiacearum could not be found. Phookamsak et al. (2016) mentioned that Hyde et al. (2013) might have misidentified Vizella bingervilliana as Mycerema vochysiacearum and thus, they transferred M. vochysiacearum to Vizella. Phookamsak et al. (2016) observed the protologue and iconotype of M. vochysiacearum and indicated that the protologue did not match with Vizella vochysiacearum as described in Hyde et al. (2013). Phookamsak et al. (2016) considered that the taxon on the host was Vizella bingervilliana (as V. vochysiacearum in Hyde et al. 2013) and reinstated Mycerema and its type species, M. vochysiacearum in Schizothyriaceae. Hyde et al. (2011) and Wijayawardene et al. (2012) reported the asexual morph of Mycerema as the coelomycetous genus Plenotrichaius.

Type species: Mycerema vochysiacearum Bat., J.L. Bezerra & Cavalc., in Batista et al., Publicações. Instituto de Micologia da Universidade do Recife & Instituto Nacional de Pesquis 392: 7 (1963).

Other accepted species: Species Fungorum – search Mycerema.

 

References

Batista AC, Bezerra JL, Cavalcante W. de A, Maia H da Silva. 1963 – Mycerema e outros novos gêneros de Stomiopeltoideae, da familia Micropeltaceae. Publicações do Instituto de Micologia da Universidade do Recife 392, 1–40.

Hyde KD, Jones EBG, Liu J-K, Ariyawansa H et al. 2013 – Families of Dothideomycetes. Fungal Diversity 63, 1–313.

Hyde KD, McKenzie EHC, KoKo TW. 2011 – Towards incorporating anamorphic fungi in a natural classification – checklist and notes for 2010. Mycosphere 2, 1–88.

Phookamsak R, Boonmee S, Norphanphoun C, Wanasinghe DN et al. 2016 – Schizothyriaceae. Mycosphere 7, 154–189.

Wijayawardene DNN, McKenzie EHC, Hyde KD. 2012 – Towards incorporating anamorphic fungi in a natural classification–checklist and notes for 2011. Mycosphere 3, 157–228.

 

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 25 March 2026

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