Fungalpedia – Note 2930, Lasionectriopsis
Lasionectriopsis Lechat & P.-A. Moreau, in Lechat, Moreau & Bender, Ascomycete.org 11(1): 1 (2019).
Citation when using this data: Perera RH et al. 2023 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification Bionectriaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi.
Probably saprobic, on woody substrates. Sexual morph: Ascomata perithecial, gregarious, astromatic, partially immersed in a subiculum of hyaline hyphae, globose with a conical apex, whitish to pale orange becoming brownish orange when dry, cupulate or laterally pinched upon drying, ostiolate, KOH-, lactic acid-. Ostiolar region lined with periphyses, not covered by the hyphae. Peridium of single stratum, composed of subglobose to globose or ellipsoidal cells. Asci 8-spored, unitunicate, clavate, short-stipitate, with an apical ring. Paraphyses present, evanescent, filamentous to narrowly moniliform. Ascospores biseriate or irregularly arranged in upper part, uniseriate in lower part, narrowly ellipsoidal to fusiform, 1-septate, not or slightly constricted at septum, hyaline, pale yellow in mass, verruculose. Asexual morph: Hyphomycetous, acremonium-like. Conidiophores simple or branched, arising from the aerial mycelium, flexuous, smooth-walled, giving rise to a conidiogenous cell. Phialides simple, septate, with an unflared collarette. Conidia ellipsoidal to subcylindrical, aseptate, basal abscission scar visible, hyaline, smooth-walled, aggregated in a mucoid head (adapted from Lechat et al. 2019).
Known distribution: South America, UK, Germany (Lechat et al. 2019; Gams 1971; Summerbell et al. 2011)
Notes: Lechat et al. (2019) established Lasionectriopsis to accommodate Lasionectriopsis germanica and two non-melanised Acremonium species: Acremonium pteridii and A. spinosum (Gams 1971; Summerbell et al. 2011). The genus is typical of Bionectriaceae in its astromatic, globose, pale coloured, KOH and lactic acid negative ascomata and acremonium-like asexual morphs. Lasionectriopsis was identified as a distinct genus based on partially immersed ascomata in a subiculum, peridium of single stratum, verruculose ascospores and LSU phylogeny (Lechat et al. 2019). Three species (with molecular data) are accommodated in Lasionectriopsis. (Lechat et al. 2019).
Type species: Lasionectriopsis germanica Lechat, P.-A. Moreau & H. Bender, Ascomycete.org 11(1): 1 (2019).
Other accepted species: Species Fungorum – search Lasionectriopsis.
References
Entry by
Perera RH, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou 550006, 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, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand.
Published online 7 August 2026