Metacapnodium novae-zelandiae Aliabadi & Berbee 2025, comb. nov.

Metacapnodium novae-zelandiae (S. Hughes) Aliabadi & Berbee, 2025 comb. nov. Fig. 12 Basionym. ≡ Capnocybe novae-zelandiae S. Hughes, N. Z. Jl Bot. 4: 345 (1966). Specimen examined. New Zealand • South Island, Canterbury District, Woolshed Hill, Hawdon Valley, on bark of Nothofagus fusca, 16 May 1963, S. J. Hughes (Capnocybe novae-zelandiae DAOM 97302 a isotype). Description. Subicula dark brown to black, superficial, spongy. Mycelia of doliiform and moniliform, brown to dark brown hyphae, smooth throughout but roughened at the distal parts. Hyphae anastomosing, branched, straight and curved, tapering towards their distal tips. Cells subglobose to doliiform, to 32 µm wide, narrowing to 6 µm at hyphal tips. Sexual form unknown. Asexual forms. Capnocybe – Synnemata sparsely distributed throughout subicula, erect, cylindrical, up to 2.5 mm high, with a slimy head (Fig. 12 F). Stipes 100–150 µm wide, of dense, compact, fasciculate hyphae of cylindrical to ellipsoidal cells that taper to 5.5–6 µm towards the hyphal tips. Internal hyphal cells at synnema base globose, ellipsoidal to pyriform, to 40 µm wide. Heads of synnemata, up to 350 µm wide, their hyphae with penicillate branching. Terminal cells almost ellipsoid, 10–16 long and 5.5–7 wide, bearing denticulate scars where successive conidia budded out, then seceded. Conidia 3 – septate (although Hughes (1966) reported rare 2 - septate conidia) ellipsoid, rounded at both ends, straight to somewhat curved, dark brown, thick-walled, paler at their apices, (31) – 35.8 – (39) + / – 2.7 × (9) – 11 – (13) + / – 1.0 µm, N = 20, Q = 3.2. Capnophialophora – Phialides from tips or sides of hyphae or from conidia, with light brown to brown, roughened, subspherical venters 5–6 µm wide; each bearing a funnel-shaped collarette up to 5 µm long with a deep constriction