Capnodium gardeniarum (Bat. & Cif.) W.J. Li & K.D. Hyde, comb. nov.
= Conidioxyphium gardeniarum Bat. & Cif. Quad. Lab. crittogam., Pavia 31: 73 (1963)
On leaves of Gardenia jasminoides (Rubiaceae). Sexual morph: undetermined. Asexual morph: Conidiomata 600 × 50 μm, dark brown to black, pycnidial, solitary to gregarious, superficial, ovoid to flask-shaped or elongated, unilocular, glabrous, produced on and merging into a basal sterile stalk, expanding slightly in the locular region, finally with a long tapered rostrate apex, sometimes branched. Ostiole apical, centrally located, surrounded by hyaline hyphae. Stalk wall composed of thick-walled, dark brown, parallel columns, longitudinally elongated cells of textura porrecta. Pycnidial wall composed of cuboid brown pseudoparenchyma at the locular region, becoming pale brown, thin-walled, parallel columns, longitudinally elongated pseudoparenchyma at the rostrate apex region. Conidiophores up to 4 μm wide, arising from inner layer of the base and sides of the pycnidial wall, hyaline, cylindrical to subcylindrical, unbranched, septate, smooth-walled, consisting of several cuboid conidiogenous cells. Conidiogenous cells hyaline, enteroblastic, phialidic, cylindrical to dolliform, integrated, determinate, smooth-walled, with apical or lateral apertures immediately below septa, occasionally polyphialidic Conidia 4.5–8 × 2–2.5 μm, hyaline, ellipsoid to cylindrical, unicellular, smooth-walled, guttulate (Sutton 1980).
Capnodium gardeniarum (redrawn from Sutton 1980) a Conidia b Branched conidiomata. c Conidiophores, conidiogenous cells and developing conidia. d Side view of a conidioma.
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.