Fungalpedia – Note 3150, Circinoconiopsis
Circinoconiopsis A. Hern.-Gut., Mycotaxon 123: 108 (2013).
Citation when using this data: Jian Ma et al. 2024 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Pezizomycotina, Ascomycota, Fungi.
Notes: Circinoconiopsis was erected and illustrated by Hernández (2013) to accommodate a single species, C. amazonica, as the type species based on their peculiar coiled conidia. This species was found on Oenocarpus sp. (Arecaceae) in Brazil (Hernández 2013). Circinoconiopsis is characterized by macronematous, mononematous, rarely branched, erect, multi-septate, brown to dark brown conidiophores, monoblastic, slightly lageniform to subulate conidiogenous cells, and helicoid, solitary, subhyaline to pale brown, rostrate conidia (Hernández 2013). Circinoconiopsis is morphologically similar to Circinoconis in having circinate and rostrate conidia (Hernández 2013). However, they have different conidiophores and conidia. For example, Circinoconiopsis has rarely branched conidiophores at the base, tapering towards the top, and conidia that gradually become slender towards the apex. In contrast, Circinoconis has trichotomously apically branched conidiophores, and their conidia do not become significantly narrower towards the apex (Boedijn 1942; Hernández 2013).
Type species: Circinoconiopsis amazonica A. Hern.-Gut., Mycotaxon 123: 108 (2013).
Other accepted species: Species Fungorum – search Circinoconiopsis.
Figure 1 – (a) Circinoconiopsis amazonica (redrawn from Seifert et al. (2011)); (b) Circinoconis paradoxa (redrawn from Seifert et al. (2011)); (c) Clathroconium arachnicola (redrawn from Seifert et al. (2011)); (d) Curculiospora sydowii (redrawn from Arnaud (1954)).
References
Boedijn K. 1942 – Circinoconis, a new genus of Dematiaceae (Fungi Im-perfectae). 150th Anniversary Volume, Royal Botanic Garden, Calcutta: 209–211.
Entry by
Jian Ma, School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand.
Published online 10 September 2026