Conidiocarpus caucasicus

Conidiocarpus caucasicus Woron., Key to fungi (fungi imperfecti) 2: 743 (1917).

            Index Fungorum number: IF 803878; Facesoffungi number: FoF 11048, Fig. 1

Description:

Saprobic on host. Sexual morph: Unknown. Asexual morph: Thallus comprising black, pelliculose, reticulately branched, dense, cylindrical, radiating, septate hyphae. Ascomata not observed. Conidiomata 80–100 μm diam., 70–95 μm high, pycnidial, consisting of a black, long, narrow, cylindrical stalks with tightly compressed, anastomosed, synnematous cylindrical hyphae, lageniform with a brown oval or ellipsoid portion, producing long neck and conidia. Conidiomatal wall comprising two or more layers, the outer is pseudoparenchymatous even though the short cells are arranged linearly, originating from longitudinally fused hypha. Ostiole surrounded by hyaline, subulate, hyphal extensions. Conidia 4.1−5.5 × 2.1−2.8 µm (x̄ = 5.0 × 2.6 µm, n = 10), small, ellipsoid, continuous, aseptate, hyaline, smooth-walled, arranged in a droplet at the apex of pycnidial neck.

Material examined: Iran, Mazandaran, Nashtaroud, on Citrus sinensis (Rutaceae), F. Byrami, 17 June 2011 (UBC F23755).