Ciliosporella selenospora Petr., Annls mycol. 25(3/4): 217 (1927)
Saprobic on dead stems of Trifolium alpestre (Fabaceae). Sexual morph: undetermined. Asexual morph: Conidiomata 150–300 µm diam., 100–150 µm high, pale brown to brown, stromatic, pycnidial, solitary to gregarious or occasionally confluent, deeply immersed, globose to depressed globose, unilocular or multilocular, glabrous, papillate, ostiolate; the locules 60–100 µm diam., 80–100 µm high. Ostiole 30–40 × 20–40 µm, single, short, rounded, excentric. Conidiomatal wall 20–40 µm wide, composed of three types of cells, a) basal wall of textura angularis to textura epidermoidea with pale to hyaline, thick-walled cells; b) middle wall of textura epidermoidea with hyaline, thick-walled cells; c) upper wall which surrounding by brown to pale brown, thick-walled, cells of textura angularis. Paraphyses hyaline, filiform, unbranched, smooth-walled, originating from inner layer of cells of conidiomata or from conidiophores. Conidiophores 10–20 × 2–4 µm, formed from the innermost wall layers of conidiomata, hyaline, branched, septate, smooth-walled. Conidiogenous cells 6–10 × 2–3 µm, hyaline, enteroblastic, phialidic, subcylindrical to lageniform, discrete or integrated, determinate, smooth-walled, with morderate periclinal thickening in the collarette zone. Conidia 23–31 × 3–5 µm (x = 27 × 3.5 µm; n = 30), hyaline, fusiform to navicular, truncate at base, acute at apex, 1-septate, bearing a rostrate, tubular, unbranched appendage at apex (6–11 × 1–2 µm).
Material examined: Austria, Brunn in Mähren, on stems of Trifolium alpestre L. (Fabaceae), May 1926, J. Hruby (FH 01142397, isotype), F. Petrak, Flora Bohemiae et Moraviae exs. #2245.
Ciliosporella selenospora (FH 01142397, isotype). a, b Herbarium package and specimen. c, d Appearance of pale brown to brown conidiomata on the host. e, f Vertical section of conidiomata. g, h, k Section of peridium. i, j, l–o Conidiophores, conidiogenous cells, paraphyses and developing conidia. p–t Conidia. Scale bars c = 200 µm, d–f = 100 µm, g, i = 20 µm, h, k = 50 µm, j, l–t = 10 µm.
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.