Sporoschisma atroviride J. Yang, Jian K. Liu & K.D. Hyde, sp. nov.

MycoBank number: MB 559655; Index Fungorum number: IF 559655; Facesoffungi number: FoF 12817;

Etymology: referring to the dark green conidia.

Holotype: HKAS 112602

Saprobic on decaying plant substrates. Asexual morph: Colonies effuse, black, hairy, with glistenning conidia in chains. Setae arising from the bulbous base, often with 1–2 at the side of conidiophores, capitate, 1–2-septate, smooth-walled, olivaceous brown, becoming paler towards the apex, straight or slightly flexuous, 100–115 × 4–5.5 µm. Conidiophores macronematous, mononematous, erect, straight or slightly flexuous, solitary or aggregated in small groups, smooth-walled, dark brown to black, composed of a cylindrical stipe, a swollen venter and a phialide stalk, 275–390 µm ( = 336 µm, n = 15) long, 17–22.6 µm ( = 20.2 µm, n = 15) wide at the tubular collarette, 18–23 µm (x̅ = 22.2 µm, n = 15) wide at venter and 9.5–13.5 µm ( = 11 µm, n = 15) wide near the base. Conidiogenous cells monophialidic, integrated, terminal, determinate, dark brown, with a tubular collerette and swollen venter, with flared margin at free end. Conidia 36–49(–53) × (13–)14–15.5(–16) µm ( = 42 × 14.7 µm, n = 30), emerging in a chain inside the tubular collarette, develop basipetally, cylindrical, often truncate and sometimes slightly rounded at both ends, terminal conidia usually rounded at the apex, 5–7-euseptate, with conspicuously darkened septa, hyaline when young, dark olivaceous brown to dark brown when maturity with the two end cells pale brown to subhyaline, central cells are longer than the penultimate cells. Sexual morph: Undetermined.