Fungalpedia – Note 2878, Hymenobia

Hymenobia Nyl.

Citation when using this data: Meng QF et al. – Fungalpedia.

Index Fungorum, Faceoffungi, MycoBank, GenBank.

Classification: Ascomycota genera incertae sedis, Fungi.

Hymenobia was first referenced by Nylander (1854) for a small parasitic fungus inhabiting the hymenium of Lecidea jurana, though no description or illustration was provided. Later, Triebel (1989) designated Hymenobia insidiosa Nyl. as the type species of the genus. Roux et al. (1991) discussed its systematic position and elaborated on its characteristics, including very thin-walled or absent perithecioid ascocarps with a dispersed hymenium within the host (Lecidea), branched paraphyses, unitunicate asci, and hyaline, thin-walled spores with 1–2 septa. The genus is tentatively placed within Ascomycota genera incertae sedis pending the availability of molecular data (Hyde et al. 2024).

Type species: Hymenobia insidiosa Nyl. (Nylander 1854, Triebel 1989, Roux et al. 1991).

Other accepted species: Species Fungorum – search Hymenobia.

 

References

Hyde KD, Noorabadi M, Thiyagaraja V, He M et al. 2024 – The 2024 Outline of Fungi and fungus-like taxa. mycosphere 15, 5146–6239.

Nylander W. 1854 – Études sur les lichens d’Algérie. Mémoires de la Société Impériale des Sciences Naturelles de Cherbourg 2, 305–344.</p

Roux C, Bellemère A. 1991 – Systématique des champignons lichénicoles non lichénisés: nouveautés et changements importants depuis la parution de Nelikeniĝintaj fungoj likenloĝaj. Bull. Ass. Fr. Lichénol 16 (2), 71–83.

Triebel D. 1989 – Lecideicole Ascomyceten. Eine Revision der obligat lichenicolen Ascomyceten auf lecideoiden Flechten. Bibliotheca Lichenologica 35, 1–278.

 

Entry by

Meng QF, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand and School of Public Health, Zunyi Medical University, Guizhou 563000, China.

 

Published online 24 July 2026

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