Cladosporium cucumerinum

Cladosporium cucumerinum Ellis & Arthur, Bull. Indiana Agric. Stat. 19: 9 (1889)

Index Fungorum number: IF 164454; Facesofungi number: FoF 03823

            Saprotrophic on dead and aerial branch of Vitis vinifera. Sexual morph: Not observed. Asexual morph: Conidiomata superficial, partly immersed on the substrate, composed of septate, branched, smooth, thin-walled, subhyaline to light brown hyphae. Conidiophores 150–256 × 8–11 µm diam (x̄ = 189 × 10 µm, n = 100), macronematous, subhyaline to light brown, thin-walled, smooth, 0–1-septate, unbranched, straight or flexuous, cylindrical. Conidiogenous cells 10–16 × 6–7 µm (x̄ = 11 × 6 µm, n = 100), holoblastic, monoblastic, integrated, terminal, determinate, cylindrical to sublate, hyaline to subhyaline, rough. Conidia 28–52 × 4–6 µm (x̄ = 45 × 5 µm, n = 100), acrogenous, enteroblastic, phialidic, hyaline to subhyaline, 0–1-septate, subglobose, clavate, rough, thin-walled.

Material examined: ITALY, Province of Forlì-Cesena, Farazzano, on dead and aerial branch of Vitis vinifera (Vitaceae), 30 January 2014, Erio Camporesi, IT 1690 (MFLU 14–0206).

Notes: Cladosporium cucumerinum is a well-known pathogen causing scab disease of cucumber (Ogorek et al. 2012). This study provides the first record of this species as a saprotroph on Vitis vinifera.