Fungalpedia – Note 2239, Lecideopsella

 

Lecideopsella Höhn.

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

Lecideopsella was introduced to accommodate an epifoliar fungus occurring on Paratropia sp. in Indonesia and is characterized by flattened, dark grey, plane-scutate, membranous ascomata, a delicate, light brown, membranous peridium, 8-spored, bitunicate, globose to obovoid asci and hyaline, oblong, 1-septate ascospores (von Höhnel 1909b, Phookamsak et al. 2016). Von Arx & Müller (1975) treated Lecideopsella as a synonym of Leptophyma and accommodated the genus in Schizothyriaceae. However, Leptophyma can be distinguished from Lecideopsella in forming loose paraphyses, a colorless epithelium, and being articulariella-like, while Lecideopsella has branched, reticular, cellular filaments inside plane-scutate ascomata (von Höhnel 1909b). Eriksson & Hawksworth (1987) reinstated Lecideopsella and treated the genus in Schizothyriaceae and this was followed by subsequent authors (Eriksson & Hawksworth 1987, Kirk et al. 2001, 2008, Lumbsch & Huhndorf 2010, Hyde et al. 2013, Wijayawardene et al. 2014b). Phookamsak et al. (2016) re-examined the type specimen of Lecideopsella gelatinosa from The Harvard University Herbaria (FH, 00274523). However, the specimen is in poor condition that there is no ascomata of L. gelatinosa on the host. Nevertheless, Phookamsak et al. (2016) tentatively placed Lecideopsella in Schizothyriaceae based on the protologue of von Höhnel (1909b). 

Lecideopsella has been found from various flowering plants, mostly in tropical regions, such as India, Indonesia and Uganda (Farr & Rossman 2020). However, taxa in this genus lack molecular data to clarify their phylogenetic affinities and the type material of L. gelatinosa is in poor condition. Recollection, epitypification and molecular data of L. gelatinosa are needed to resolve the generic classification.

Type species: Lecideopsella gelatinosa Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 118: 1230 (1909).

Other accepted species: Species Fungorum – search Lecideopsella.

 

References

Eriksson OE, Hawksworth DL. 1987 – Notes on ascomycete systematics. Nos 464–551. Systema Ascomycetum 6, 237–258.

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

Kirk P, Cannon P, Minter D, Stalpers JA. 2008 – Dictionary of the Fungi. 10th edn. CAB International, Wallingford.

Kirk PM, Cannon PF, David JC, Stalpers JA. 2001 – Ainsworth & Bisby’s dictionary of the fungi, 9th edn. CABI, Wallingford.

Lumbsch HT, Huhndorf SM. 2010 – Outline of Ascomycota 2009. Myconet 14, 1–64.

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

von Arx JA, Müller E. 1975 – A re-evaluation of the bitunicate Ascomycetes with keys to families and genera. Studies in Mycology 9, 1–159.

von Höhnel F. 1909b – Fragmente zur Mykologie: VIII. Mitteilung (Nr. 354 bis 406). Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.-naturw. Klasse Abt. I. 118, 1157–1246.

Wijayawardene NN, Crous PW, Kirk PM, Hawksworth DL et al. 2014b – Naming and outline of Dothideomycetes–2014 including proposals for the protection or suppression of generic names. Fungal Diversity 69, 1–55.

 

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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