Fungalpedia – Note 2718, Kriegeriopsis
Kriegeriopsis Etayo, Diederich, Millanes & Wedin.
Citation when using this data: Meng QF et al. – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank Fig 1.
Classification: Kriegeriaceae, Kriegeriales, Microbotryomycetes, Pucciniomycotina, Basidiomycota, Fungi.
Kriegeriopsis was introduced by Diederich et al. (2022d) to describe K. livingstonensis, which grows on Tetramelas aff. graminicola. The genus is characterized by lichenicolous, gall-inducing blackish basidiomata, the absence of clamps at all septa, and claviform to subcylindrical basidia with three transverse septa. Sporogenous loci form in the upper part of the three lower basidial cells and the lower part of the apical cell. The basidiospores are large, elongate-ellipsoid, aseptate, capable of germination to produce secondary spores, and may eventually become septate, acting as secondary basidia. Phylogenetic analysis by Diederich et al. (2022d) placed this genus within Kriegeriaceae (Kriegeriales, Microbotryomycetes).
Type species: Kriegeriopsis livingstonensis Etayo, Diederich, Millanes & Wedin
Other accepted species: Species Fungorum – search Kriegeriopsis.
Figure 1 – Kriegeriopsis livingstonensis redrawn from Diederich et al. (2022d). a Blackish basidiomatal galls on the sterile thallus of Tetramelas aff. Antarctica. b Basidia and basidiospores development. c Old basidium remnants (two lower cells) with an enlarged attached basidiospore that may eventually develop into a secondary basidium. Scale bars: a = 200 μm, b, c = 10 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 22 July 2026