Fungalpedia – Note 702, Thallomyces

 

Thallomyces H.J. Swart.

Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank.

Classification: Parmulariaceae, Asterinales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi 

Colonies epiphyllous, black, rounded and confluent. Mycelium flattened, wide, subcuticular with pale olive to dark brown branched, septate hyphae. Sexual morph: Ascomata uniloculate, superficial, flattened, stromatic, rounded opening an irregular pore. Hamathecium of hyaline, filiform pseudoparaphyses. Asci bitunicate, 2–3-seriate, 8-spored, cylindrical, broadly rounded at the apex, short pedicellate. Ascospores irregularly and obliquely, initially hyaline becoming dark brown at maturity, 1-septum, slightly constricted, often 1-guttulate, the upper cell slightly wider than the lower cell. Asexual morph: Undetermined (Hansford 1954; Swart 1975).

Notes: Thallomyces is monotypic genus and the type species of Thallomyces oritis was recorded as pathogenic on living leaves of Orites lancifolius F. Muell. (Inacio and Cannon 2008; Wijayawardene et al. 2018, 2020). This genus is characterized by superficial, dark brown to black, flattened, circular ascomata forming on branched, septate, dark brown hyphae (Inacio and Cannon 2008; Hongsanan et al. 2020a).

Type species Thallomyces oritis (Hansf.) H.J. Swart, Trans. Br. mycol. Soc. 65(1): 85 (1975)

Other accepted species:  species Fungorum – search Thallomyces.

 

References

Hansford CG 1954 – Australian fungi. II. New records and revisions. Proc Linnean Soc NSW 79:97–141.

Hongsanan S, Hyde KD, Phookamsak R et al 2020a – Refined fami- lies of Dothideomycetes: orders and families incertae sedis in Dothideomycetes. Fungal Divers 105:17–318.

Inácio CA, Cannon PF 2008 – The genera of the Parmulariaceae. CBS biodiversity series, vol 8. CBS Fungal Biodiversity Centre, Utrecht.

Swart HJ 1975 – Callosities in fungi. Trans Br Mycol Soc 64:511–515.

Wijayawardene NN, Hyde KD, Al-Ani LK et al 2020 – Outline of Fungi and fungus-like taxa. Mycosphere 11:1060–1456.

Wijayawardene NN, Hyde KD, Lumbsch HT et al 2018 –  Outline of Ascomycota: 2017. Fungal Divers 88:167–263.

 

Entry by 

Diana Sandamali Marasinghe, 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, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai, 50150, Thailand

 

Published online 29 August 2023

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