Fungalpedia – Note 424, Gossypiothallon
Gossypiothallon Aptroot
Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomata.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. X
Classification: Incertae sedis, Arthoniales, Arthoniomycetidae, Arthoniomycetes, Pezizomycotina, Ascomycota, Fungi.
Aptroot (2014) introduced Gossypiothallon as a new genus along with Gossypiothallon appendisporum as a type species from the Solomon Islands. The study was based on morphological analysis and thin-layer chromatography (TLC). Today, G. appendisporum is the only species recognized in this genus (Aptroot 2014). Gossypiothallon is characterized with whitish thallus with crustose, not corticate, byssoid, and not surrounded by prothallus; spherical ascomata, turbinate to pedicellate, round, pale pink, single, without distinct margins; hyaline hymenium is not inspersed; paraphyses often anastomosing; hyaline hypothecium; long clavate to almost cylindrical asci with eight ascospores, is visible with the tips not clearly thickened; ascospores are bacillar, 3-septate, wall and septa thin, ends rounded, with two polar, usually curved gelatinous appendages (Aptroot 2014).
Type species: Gossypiothallon appendisporum Aptroot
Other accepted species: This genus is monotypic.
Figure 1 – Gossypiothallon appendisporum (isotype in ABL). a Habitat. b, c Ascospores. Scale bars: a = 0.5 mm, b, c = 5 μm. Redrawn from Aptroot (2014).
Reference
Entry by
Priyashantha AKH, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
(Edited by Saowaluck Tibpromma, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)
Published online 2 December 2024