Fungalpedia – Note 1033, Microtheliopsidaceae
Microtheliopsidaceae O.E. Erikss.
Citation when using this data: Tian Q et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Chaetothyriales, Chaetothyriomycetidae, Eurotiomycetes, Pezizomycotina, Ascomycota, Fungi
Thallus foliicolous, crustose. Photobiont trentepohlioid. Sexual morph: Ascomata perithecioid, scattered or aggregated, lens-shaped to conical with rounded to radiantly elongate 1228 base. Excipulum thin-walled, composed of layers of dark brown, irregular, intricate, wavy hyphae. Involucrellum formed by algal cells surrounded by dark brown hyphae. Hamathecium aparaphysate, J+, KI+. Asci 8-spored, fissitunicate, obclavate, J-, Kl-. Ascospores submuriform hyaline to greyish brown, septate. Asexual morph: Undetermined.
Notes: Microtheliopsidaceae O.E. Erikss. was introduced with the type genus Microtheliopsis Müll. Arg. by Eriksson (1981). Microtheliopsidaceae is characterized by perithecioid ascomata without paraphyses, fissitunicate asci, and greyish brown ascospores. Eriksson (1981) considered the Microtheliopsidaceae to be close to Herpotrichiellaceae in Chaetothyriales (Eriksson et al. 2004, Eriksson 2006, Lücking 2008). Currently, the family contains Microtheliopsis, which is foliicolous lichen communities.
Type genus: Microtheliopsis Müll. Arg., Flora, Regensburg 73: 195 (1890).
References
Eriksson OE. 1981 – The families of bitunicate ascomycetes. Nordic Journal of Botany 1(6), 800.
Eriksson OE. 2006 – Outline of Ascomycota-2006. Myconet 12, 1–82.
Eriksson OE, Baral HO, Currah RS, Hansen K, et al. 2004 – Outline of Ascomycota-2004. Myconet 10(1), 89.
Lücking R. 2008 – Foliicolous Lichenized Fungi. Flora Neotropica Monograph 103, 1– 866.
Entry by
Qing Tian, 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
Published online 16 December 2021