Fungalpedia – Note 846, Circinoniesslia
Circinoniesslia. Samuels & M.E. Barr.
Citation when using this data: Huang SK et al. 2021 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank., Fig 1
Classification Niessliaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Fungicolous, on ascomata of Bionectria or Nectria species. Sexual morph: Ascomata perithecial, solitary or scattered, superficial, globose, yellow, membranaceous, surrounded by white, circinately coiled appendages, collapsing when dry, ostiolate with an unconspicuous papilla, periphysate. Peridium composed of membranaceous, yellow to hyaline cells of textura globulosa to textura angularis to textura prismatica. Paraphyses absent. Asci 8-spored, unitunicate, cylindrical, pedicellate, apex rounded, evanescent. Ascospores bi-seriate, hyaline, ellipsoidal, straight or slightly curved, 1-septate, striate, guttulate. Asexual morph: Undetermined (adapted from Samuels & Barr 1997).
Notes – The monotypic Circinoniesslia was found on ascomata of Bionectria or Nectria and has a special crown-shaped appendage on ascomata with striate ascospores (Samuels & Barr 1997). Samuels & Barr (1997) considered that the superficial and setose ascomata is the main feature of Niessliaceae, and Circinoniesslia meets this condition.
Type species: Circinoniesslia nectriae Samuels & M.E. Barr, Canad. J. Bot. 75(12): 2166 (1998) [1997].
Other accepted species: Species Fungorum – search Circinoniesslia.
Figure 1 – Circinoniesslia nectriae: (BPI-748359, holotype). a Material. b–d Ascomata on the host. e Ascoma cross section. f Ostiole with periphyses. g Crown appendage cross section. h Peridium. i–k Asci. l–o Ascospores. Notes: j–k stained in Melzer’s reagent. Scale bars: b = 1 mm, c–d = 200 µm, e = 100 µm, h = 50 µm, f–g, i–k = 20 µm, l–o = 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 14 September 2021