Trichosphaerella decipiens on Ulmus, from Mycologues Associes.

Belongs within: Hypocreales.

The Niessliaceae are a family of fungi that are saprobic on leaves or wood.

Characters (from Cannon & Kirk 2007): Ascomata perithecial, superficial on or rarely immersed in a subiculum or crustose stroma, small, ± globose, sometimes collapsing when dry, pale to dark brown, often setose or ornamented, the ostiole periphysate; peridium thin, soft. Interasca1 tissue of apical paraphyses. Asci ± clavate, thin-walled, not fissitunicate, with a small refractive J- apical ring. Ascospores ± hyaline, 0- or 1-septate, sometimes fragmenting. Anamorphs hyphomycetous, Acremonium-like.

    |--Circinoniesslia EB03
    |--Cryptoniesslia EB03
    |--Hyaloseta EB03
    |--Melanopsamma EB03
    |--Melchioria EB03
    |--Niesslia EB03
    |--Paraniesslia EB03
    |--Pseudorhynchia EB03
    |--Taiwanascus EB03
    |--Valetoniella EB03
    |--Valetoniellopsis EB03
    |--Malmeomyces Starbäck 1899 EB03, RS99
    |    `--*M. pulchellus Starbäck 1899 (see below for synonymy) RS99
    |--Miyakeomyces Hara 1913 EB03, RS99 [=Miyakeamyces (l. c.) RS99]
    |    `--*M. bambusae Hara 1913 [=Calonectria bambusae (Hara) von Höhnel 1919] RS99
    |--Myrmaeciella Lindau 1897 EB03, RS99 [=Myrmaecium Saccardo 1880 non Nitschke 1870 RS99]
    |    `--*M. endoleuca (Saccardo) Lindau 1897 (see below for synonymy) RS99
    |--Pseudonectriella Petrak 1959 EB03, RS99
    |    `--*P. ahmadii Petrak 1959 RS99
    `--Trichosphaerella Bommer, Rousseau & Saccardo 1891 EB03, RS99 [incl. Bresadolella von Höhnel 1903 RS99]
         `--*T. decipiens Bommer, Rousseau & Saccardo 1891 (see below for synonymy) RS99

*Malmeomyces pulchellus Starbäck 1899 [=Calonectria pulchella (Starbäck) Weese 1914, Chaetothyrium pulchellum (Starbäck) Theiss. 1913] RS99

*Myrmaeciella endoleuca (Saccardo) Lindau 1897 [=Myrmaecium endoleucum Saccardo 1880 (nom. inv.), Hypocreopsis endoleuca (Saccardo) Müller & Arx 1962] RS99

*Trichosphaerella decipiens Bommer, Rousseau & Saccardo 1891 [incl. *Bresadolella aurea von Höhnel 1903, Neorehmia aurea (von Höhnel) Munk 1957, Larseniella major Munk 1948] RS99

*Type species of generic name indicated


Cannon, P. F., & P. M. Kirk. 2007. Fungal Families of the World. CABI.

[EB03] Eriksson, O. E., H. O. Barah, R. S. Currah, K. Hansen, C. P. Kurtzman, G. Rambold & T. Laessøe (eds.) 2003. Outline of Ascomycota—2003. Myconet 9: 1-89.

[RS99] Rossman, A. Y., G. J. Samuels, C. T. Rogerson & R. Lowen. 1999. Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes). Studies in Mycology 42: 1-248.

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