Fungalpedia – Note 683, Mintera

 

Mintera Inácio & P.F. Cannon.

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 

Parasitic and epiphytic on leaves. Sexual morph: Ascomata superficial, solitary to gregarious, dark brown to black, multi-loculate, becoming circular to stellate with radiating ridges. External mycelium dark brown, septate branched with sub-globose appressoria. Internal stroma subcuticular composed of indistinct hyaline hyphal tissue with dark brown columnar structures connected to intracellular haustoria. Ascomatal locules radially arranged, round, ellipsoidal or elongate. Hamathecium composed of branched, cellular pseudoparaphyses, sometimes dichotomously branched and torulose near the smooth or verrucose apices. Asci 2- to 8-spored, clavate to widely clavate, cylindrical clavate, hyaline, thick-walled, with rostrate dehiscence. Ascospores cylindric-ellipsoidal to ellipsoidal, 1-septum, hyaline to becoming pale brown, verrucose-walled. Asexual morph: Undetermined.

Notes: Inácio and Cannon (2003) established Mintera with type species of Mintera reticulata which was previously designated as Parmularia reticulata. This genus is morphologically similar to Aulacostroma in having surface mycelium with appressoria. However, Mintera has stromatic, gregarious, black ascomata grouping into a pyrethrum-like shape on mycelium, cylindric-clavate, subglobose asci and ellipsoid, brown, 1-septum ascospores (Inácio and Cannon 2008) while Aulacostroma is characterized by stromatic, solitary to gregarious, superficial, black ascomata, broadly clavate, globose to subglobose, obovoid asci and brown ellipsoid, 1-septum ascospores (Inácio and Cannon 2008).

Type species: Mintera reticulata (Starbäck) Inácio & P.F. Cannon, Mycol. Res. 107(1): 86 (2003)

Other accepted species: species Fungorum – search Mintera.

 

References

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

Inácio CA, Cannon PF 2003 – Viegasella and Mintera, two new gen- era of Parmulariaceae (Ascomycota), with notes on the species referred to Schneepia. Mycol Res 107:82–92.

 

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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