Fungalpedia – Note 2585, Trichophyma
Trichophyma Rehm.
Citation when using this data: Meng QF et al. – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Arthoniales genera incertae sedis, Arthoniomycetes, Pezizomycotina, Ascomycota, Fungi
Trichophyma was introduced by Rehm (1904) to accommodate the type species Trichophyma bunchosiae Rehm, a folicolous fungus. Initially, it was placed within Myriangiales by Rehm (1904), however, Lumbsch et al. (2007) assigned this genus to Arthoniales genera incertae sedis, and this viewpoint was widely accepted (Lumbsch et al. 2007, Wijayawardene et al. 2017, Diederich et al. 2018a, Hyde et al. 2024). Since the lack of molecular data, its phylogenetic position remains unresolved.
This genus is characterized by a radially arranged hyaline mycelium forming a prosenchymatous context, covered with long, septate, hyaline hairs. The perithecia are scattered, featuring tubercles and a thin membrane. The asci are globose, containing eight hyaline spores that are oblong and 3-septate, eventually becoming muriform. Matzer (1996) introduced a second species, T. similis, which is lichenicolous on Strigula smaragdula. To date, only two species are recognized in this genus.
Type species: Trichophyma bunchosiae Rehm.
Other accepted species: Species Fungorum – search Trichophyma
Figure 1 – Trichophyma bunchosiae redrawn from Rehm (1904). a Part of Apothecium. b Ascospore. Scale bars a = 1 mm, b = 10 μm.
References
Lumbsch HT, Huhndorf SM. 2007 – Outline of Ascomycota—2007. Myconet 13, 1–58.
Rehm H. 1904 – Beiträge zur Pilzflora von Südamerika XIV. Hedwigia 44, 1–13.
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 9 June 2026