HYPOXYLON INSIDENS (SCHWEIN.: FR.) ELLIS & EVERH.
This name does not belong to Ascovirgaria, Biscogniauxia, Creosphaeria, Daldinia, Discoxylaria, Entoleuca, Hypoxylon, Jumillera, Kretzschmaria, Kretzschmariella, Nemania, Stilbohypoxylon, Vivantia, or Whalleya.(The accepted or suggested disposition is indicated by an asterisk (*), if there is any.)
Hypoxylon insidens (Schwein.: Fr.) Ellis & Everh., N. Amer. Pyren., p. 653. 1892.
º Sphaeria insidens Schwein., Schriften Naturf. Ges. Leipzig 1: 39. 1822; Schwein.: Fr., Syst. Mycol. II, p. 422. 1823.
U.S.A.: North Carolina, Salem & Pennsylvania, Bethlehem, Syn. 1436, (PH, HOLOTYPE; K [as no. 9011], ISOTYPE of Sphaeria insidens); Pennsylvania, Bethlehem, Syn. 1436, Collins Coll. 180, as Sphaeria insidens (PH).
= * Immotthia atrograna (Cooke & Ellis) Barr
The cited specimens contain the stromata of a Hypoxylon, possibly H. perforatum (Schwein.: Fr.) Fr., which is heavily parasitized by Immotthia atrograna (Cooke & Ellis) Barr and its sphaeropsidaceous state. Schweinitz's protologue (1822) clearly indicates that it is this parasitizing fungus that he intended to describe. Fries (1828) listed S. insidens Schwein.: Fr. as a synonym of Sphaeria atramentosum Fr.: Fr. This is unacceptable because the former is not the same as any of the three fungi associated with the latter name [see the entry of H. atramentosum (Fr.: Fr.) Sacc in this list].
