Fungalpedia – Note 2591, Wernerella
Wernerella Nav.-Ros., Cl. Roux & Giralt.
Citation when using this data: Meng QF et al. – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1.
Classification: Mycosphaerellaceae, Mycosphaerellales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Wernerella was established by Navarro-Rosinés et al. (1996a) to accommodate the non-lichenized lichenicolous fungus, W. maheui, which was combined from Leptosphaeria maheui Werner. This species grows on the hymenium of several Rinodina species. Wernerella is characterized by its colourless vegetative hyphae, consistently immersed in the hymenium of the host, with a wall that is colorless to pale brown and never emerges to the surface of the host (Navarro-Rosinés et al. 1996a). Another lichenicolous species of the genus is Wernerella acarosporae, growing on Acarospora, which was introduced by Etayo (2010c). This species is different from W. maheui by the colonizing the thallus of Acarospora instead of the hymenium of Rinodina, the erumpent ascomata, the thicker paraphyses with guttules inside, and the uniseptate spores with a thin wall (Etayo 2010c).
Type species: Wernerella maheui (Werner) Navarro-Rosinés, Cl. Roux & Giralt
Other accepted species: Species Fungorum – search Wernerella
Figure 1 – Wernerella maheui redrawn from Navarro-Rosinés et al. (1996c). a Ascoma with asci and paraphysoids. b, c Asci. d Ascospores. Scale bars: a = 20 μm, b–d = 10 μm.
References
Etayo J. 2010c – Líquenes y hongos liquenícolas de Aragón. Guineana 16, 1–501.
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 11 June 2026