Dothiorella iberica

Dothiorella iberica A.J.L. Phillips, J. Luque & A. Alves, Mycologia 97(2): 524 (2005)

Index Fungorum number: IF344530; Facesofungi number: FoF 03513

          Saprobic on branches of Rosa canina L. Sexual morph: Undetermined. Asexual morph: coelomycetous. Conidiomata 150–275 μm high × 200–325 μm diam. (x̄ = 225 × 275 μm, n = 10), pycnidial, solitary or aggregated, semi-immersed to immersed, dark brown to black, slightly depressed, globose to subglobose, unilocular, ostiolate central. Peridium 10–25 μm wide, composed of 3–5-layers of brown to black-walled cells of textura angularis. with outer 1–3-layers brown and inner 1–2-layers hyaline, thin-walled cells of textura angularis. Conidia 22–28 × 11–13 μm (x̄ = 24 × 12, n = 20), subglobose to ellipsoidal, pale brown when young, becoming brown at maturity, smooth thick-walled, one median septate.

Culture characteristics: Colonies on PDA, covering entire petri dishes after 12 d in the dark at 25 ºC; circular, initially white, after 7 d becoming greyish brown to black; reverse grey to dark greyish green.

Material examined: ITALY, Province of Forlı`-Cesena [FC], near Strada San Zeno, Galeata, on a dead aerial branch of Rosa canina (Rosaceae), 17 October 2014, Erio Camporesi IT 2179 (MFLU 17–0290), living culture MFLUCC 17–0951.

GenBank numbers: ITS: MG828897, TEF: MG829267

Note: An isolate (MFLUCC 17–0951) was recovered from Rosa stems from Forli-Cesena Province. This new isolate shares a close phylogenetic affinity to Dothiorella iberica (CBS 115045) in our combined ITS and TEF sequenced data analyses. This species has not been reported from the plant family Rosaceae and here we provide the first association of this species with Rosa.