Fungalpedia – Note 2768, Effetia
Effetia. Bartoli, Maggi & Persiani.
Citation when using this data: Huang SK et al. 2021 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Incertae sedis, Incertae sedis, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Isolated from forest soil. Sexual morph: Ascomata perithecial, solitary, brown to dark brown, globose to subglobose, ostiolate, with short necks. Peridium membranaceous. Asci 8-spored, unitunicate, cylindrical, apex rounded. Ascospores hyaline to brown, ellipsoidal, aseptate, with an apical germ pore. Asexual morph: Hyphomycetous. Mycelium dark brown, superficial, forming a thick subiculum. Hyphae flexuous, brown, septate, branched, becoming brittle. Conidiophores brown, unbranched, straight or flexuous, smooth-walled, septate, narrowed towards apex. Conidiogenous cells polyblastic, terminal ones give rise to new ones becoming intercalary, sympodial, swollen at the apex. Conidia acropleurogenous, oval to ellipsoidal, aseptate, light brown to dark brown, smooth-walled, with a sheath. Chlamydospores single or like a string of beads, irregular, brown, thick-walled (adapted from Bartoli et al. 1984).
Notes: Bartoli et al. (1984) introduced the monotypic genus Effetia and proposed that its sexual morph is similar to Apodus and Fimetariella based on its black ascomata, cylindrical asci and ellipsoidal, hyaline to light brown ascospores, while its asexual morph (in culture) was described as virgariella-like, which is more similar to Xylariaceae. However, Bartoli et al. (1984) proposed to place Effetia in Sordariaceae based on its sexual morph, but no molecular data is available. We recommend transferring Effetia to Ascomycota genera incertae sedis pending future work.
Type species: Effetia craspedoconidica Bartoli, Maggi & Persiani, Mycotaxon 19: 517 (1984).
Other accepted species: Species Fungorum – search Effetia.
Figure 1 – Effetia craspedoconidica: a–e (redrawn from Bartoli et al. 1984); f–q (IMI-223521, holotype). a Part of young ascomata on surface view. b Vertical view of ascoma with asci. c Ascus. d Conidiophores with conidia. e, o–q Chlamydospores (o. young state, p–q. dry and collapsed). f Part of colony. g, h Conidiophores with conidia (h. arrow marks swollen and sympodial conidiogenous cells). i–n Conidia with sheath; Boothiella tetraspora: r, s (redrawn from Lodhi and Mirza 1962). r Ascus s Ascospores. Scale bars: b = 50 µm, c. g. h. o–s = 10 µm, d. e = 20 µm, f = 500 µm, i–n = 5 µm.
References
Entry by
Shi-Ke Huang, State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China, The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, Guizhou Province, 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, The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
Published online 18 June 2026