Fungalpedia – Note 825, Janannfeldtia

 

Janannfeldtia Subram. & Sekar

Citation when using this data: Huang SK et al. 2021 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1n

Classification: Nitschkiaceae, Coronophorales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

Saprobic on wood. Sexual morph: Ascomata solitary to gregarious, immersed to erumpent thought the bark of substrate or superficial on decorticated wood, coriaceous to membranaceous, globose to subglobose, dark brown to black, the apex collapsing when dry, lacking ostioles, with Quellkörper, sitting on thin subiculum composed of brown, septate hyphae. Peridium composed of brown to hyaline cells of textura angularis to textura prismatica, Munk pores present. Paraphyses absent. Asci polysporous, arising from a hyaline placenta-like tissue, radially extending into the locule around the Quellkörper from the base, unitunicate, clavate, apex rounded, apical ring inconspicuous, pedicellate, evanescent. Ascospores overlapping, hyaline, aseptate, boat-shaped to reniform, smooth-walled, with a filiform, flagella-like appendage at each end, guttulate. Asexual morph: Undetermined (adapted from Subramanian & Sekar 1990).

Notes – The monotypic Janannfeldtia is typified by J. karwarensis, and has clavate asci and reniform ascospores with filiform appendage at each end (Subramanian & Sekar 1990). This genus was initially placed in Coronophorales (Subramanian & Sekar 1990), but assigned to Nitschkiaceae (Eriksson & Hawksworth 1987, Lumbsch & Huhndorf 2010, Maharachchikumbura et al. 2016, Hyde et al. 2020e, Index Fungorum 2021). We found that Janannfeldtia is similar to Biciliosporina in having subglobose ascomata with Quellkörper, clavate asci and ascospores with filiform appendage at each end, although the latter has 8-spored asci (Subramanian & Sekar 1990).

Type species: Janannfeldtia karwarensis Subram. & Sekar, Kavaka 18(1-2): 70 (1993) [1990].

Other accepted species: Species Fungorum – search Janannfeldtia.

 

image

 

Figure 1 – Biciliosporina karwarensis: a–b (IMI-IMI324681, holotype); c–e (redrawn from Subramanian & Sekar 1990). a Material. b Collapsed ascomata on the host. c Sectional view of ascoma. d Asci. e Ascospores; Syspastospora parasitica: f (redrawn from Cannon & Hawksworth 1982). f Ascospores; Scopinella barbata: g–h (redrawn from Hawksworth 1975). g Ascus. h Ascospores; Loranitschkia viticola: i (redrawn from Vasilyeva et al. 2010). i Asci and ascospores; Botryola tetrasperma: j (redrawn from Batista et al. 1964). j Asci and ascospores; Setiferotheca nipponica: k–m (redrawn from Matsushima 1995). k Peridium with setae. l Asci. m Ascospores; Janannfeldtia karwarensis: n (redrawn from Subramanian & Sekar 1990). n Asci and ascospores; Vittatispora coorgii: o–q (redrawn from Chaudhary et al. 2006). o Ascoma. p Ascus. q Ascospores; Rhagadostomella gregaria: r–s (redrawn from Etayo 2002). r Ascospores. s Asci; Neochaetosphaerella thaxteriospora: t (redrawn from Vasilyeva et al. 2012). t Ascus and ascospores; Tortulomyces thailandicus: u (redrawn from Vasilyeva et al. 2013). u Ascus and ascospores. Scale bars: b = 500 µm, c, k, o = 200 µm, i = 50 µm, d, j, n, s–u = 20 µm, e, g, l, r = 10 µm, h, m, p–q = 5 µm, f = 2 µm.

 

References

Batista AC, Bezerra JL, Castrillon AL, da Matta EAF. 1964 – Novos Ascomycetos foliícolas e caulinares. Publicações do Instituto de Micologia da Universidade do Recife 431, 1–22.

Cannon PF, Hawksworth DL. 1982 – A re-evaluation of Melanospora Corda and similar Pyrenomycetes, with a revision of the British species. Botanical Journal of the Linnean Society 84(2), 115–160.

Chaudhary P, Campbell J, Hawksworth DL, Sastry KN. 2006 – Vittatispora, a new melanosporaceous genus from Indian soil. Mycologia 98(3), 460–467.

Eriksson OE, Hawksworth DL. 1987 – Outline of the Ascomycetes. Syst Ascomycetum 6, 259–337.

Etayo J. 2002 – Aportación al conocimiento de los hongos liquenícolas de Colombia. Bibliotheca Lichenologica 84, 1–154.

Hawksworth DL. 1975 – Chaetoceratostoma Turc. & Maffei, a genus to be rejected. Transactions of the British Mycological Society 64(3), 447–453.

Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. 2020e – Refined families of Sordariomycetes. Mycosphere, 11(1), 305–1059.

Lumbsch HT, Huhndorf SM. 2010 – Myconet Volume 14. Part One. Outline of Ascomycota – 2009. Part Two. Notes on Ascomycete Systematics. Nos. 4751–5113. Fieldiana Life and Earth Sciences 2010(1), 1–64.

Maharachchikumbura SSN, Hyde KD, Jones EBG, McKenzie EHC et al. 2016 – Families of sordariomycetes. Fungal Diversity 79, 1–317.

Matsushima T. 1995 – Matsushima Mycological Memoires 8. Matsushima Mycological Memoirs 8, 1–44.

Subramanian CV, Sekar G. 1990 – Coronophorales from India-a monograph. Kavaka 18, 19–90.

Vasilyeva L, Chernyshev A, Stephenson SL. 2010 – Pyrenomycetes of the Russian Far East 4: family Nitschkiaceae (Coronophorales, Ascomycota). Mycologia 102(1), 233–247.

Vasilyeva LN, Chernyshev AV, Stephenson SL. 2012 – Neochaetosphaerella thaxteriospora gen. et sp. nov. and Tympanopsis texensis sp. nov. (Coronophorales, Ascomycota) from Texas, USA. Fungal Diversity 52(1), 191–196.

Vasilyeva LN, Chernyshev AV, Stevenson SL, Hyde KD. 2013 – Tortulomyces thailandicus gen. et sp. nov. and Nitschkia siamensis sp. nov.(Coronophorales, Ascomycota) from northern Thailand. mycoscience 54(2), 110–115.

 

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

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