Dothideomycetes families incertae sedis » Nematotheciaceae » Nematostigma

Nematostigma obducens

Nematostigma obducens Syd. & P. Syd., Annls mycol. 11(3): 262 (1913).

           Index Fungorum number: IF 249044; Facesoffungi number: FoF 03701, Fig. 1

Description: see Boonmee et al. (2017).

Material considered: see Boonmee et al. (2017).

Fig. 1 Nematostigma obducens (S-F10256, holotype). a Herbarium material. b Appearance of ascomata on host substrate. c Section through ascomata. d Squash mount of mycelia with hyphopodia-like structure. e Peridium. f Pseudoparaphyses. g Ascus with ascospores. h–k Ascospores. Scale bars: b = 500 μm, c, d, g = 50 μm, e, h–k = 20 μm, f= 5 μm.

Importance and distribution

Nematostigma comprises six species known on a range of plants and other fungi including leaves of Bridelia micrantha (Phyllanthaceae), Castanopsis tribuloides (Fagaceae), Vismia confertiflora (Hypericaceae), Mitragyna stipulosa (Rubiaceae) and parasitic on Parodiopsis melioloides (Parodiopsidaceae). Nematostigma is reported from Africa (Uganda), Asia (Nepal) and South America (Ecuador).

 

References

Barr ME. 1997 – Notes on some ‘dimeriaceous’ fungi. Mycotaxon 64, 149–171.

Boonmee S, Phookamsak R, Hongsanan S, Doilom M et al. 2017 – Mycosphere notes 51–101. Revision of genera in Perisporiopsidaceae and Pseudoperisporiaceae and other Ascomycota genera incertae sedis. Mycosphere 8, 1695–1801.

Eriksson OE, Hawksworth DL. 1993 – Notes on ascomycete systematics – Nos 1418–1529. Systema Ascomycetum 11, 163–194.

Hansford CG. 1946 – The foliicolous Ascomycetes, their parasites and associated fungi. Mycological Papers 15, 1–240.

Hawksworth DL, Kirk PM, Sutton BC, Pegler DN. 1995 – Ainsworth & Bisby’s dictionary of the fungi, 8th edn. CAB International, Wallingford.

Hyde KD, Jones EBG, Liu JK, Ariyawansa H et al. 2013 – Families of Dothideomycetes. Fungal Diversity 63, 1–313.

Kirk P, Cannon P, Minter D, Stalpers JA. 2008 – Dictionary of the Fungi. 10th edn. CAB International, Wallingford.

Lumbsch HT, Huhndorf SM. 2010 – Outline of Ascomycota 2009. Myconet 14, 1–64.

Sydow H, Sydow P. 1913 – Novae fungorum species - X. Annales Mycologici 11, 254–271.

von Arx JA, Müller E. 1975 – A re-evaluation of the bitunicate Ascomycetes with keys to families and genera. Studies in Mycology 9, 1–159.

 

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