Fungalpedia – Note 2879, Hypotrachynicola
Hypotrachynicola Etayo.
Citation when using this data: Meng QF et al. – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Ascomycota genera incertae sedis, Fungi.
Hypotrachynicola was introduced by Etayo (2002b) to accommodate the parasitic fungus H. rubra, found on the foliose lichen Hypotrachyna. The genus is characterized by black, subglobose, aggregated, and immersed perithecioid ascomata with a brown, papillate ostiole. The perithecium wall exhibits an epidermoid texture, and periphyses are simple. The asci are unitunicate, clavate, thin-walled, and contain 16 hyaline, unseptate, ellipsoid spores (Etayo 2002b). In the absence of molecular data, Hypotrachynicola has been tentatively placed within Ascomycota genera incertae sedis, pending further phylogenetic analysis (Hyde et al. 2024).
Type species: Hypotrachynicola rubra Etayo, on Hypotrachyna sp. (Etayo 2002b).
Other accepted species: Species Fungorum – search Hypotrachynicola.
Figure 1 – Hymenobia insidiosa redrawn from Etayo (2002b). a Four sites on the stem of Hypotrachyna sp. b Cross section of an ascoma. c Asci. d Ascospores. Scale bars: a = 100 μm, b = 50 μm, c = 10 μm, d = 5 μm.
References
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