Synonymy:
Sphaeria rigens Fr., Elench. fung. (Greifswald) 2: 61 (1828)
Hypocrea rigens (Fr.) Sacc., Michelia 1(no. 3): 301 (1878)

Sphaeria schweinitzii Fr., Elench. fung. (Greifswald) 2: 60 (1828)
Hypocrea schweinitzii (Fr.) Sacc., Syll. Fung. (Abellini) 2: 522 (1883)

Sphaeria contorta Schwein., Trans. Am. phil. Soc., New Series 4(2): 194 (1832) [1834]
Hypocrea contorta (Schwein.) Berk. & M.A. Curtis, in Berkeley, Grevillea 4(no. 29): 14 (1875)
Hypocrea rigens subsp. contorta (Schwein.) P. Karst., Acta Soc. Fauna Flora fenn. 2(no. 6): 9 (1885) [1881-1885]

Position in classification:
Trichoderma, Hypocreaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Ascomycota, Fungi

Note:
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