Botryosphaeriales » Melanopsaceae » Melanops

Melanops tulasnei

Melanops tulasnei Fuckel, Jb. nassau. Ver. Naturk. 23–24: 225 (1870) [1869–70].

Dothidea melanops Tul., Annls Sci. Nat., Bot., sér. 4 5: 116 (1856).

            Index Fungorum number: IF 150956; Facesoffungi number: FoFxxx, Fig. 1

Description: Melanops sp. (MFLU 17-0726). 

Saprobic on host. Sexual morph: Undetermined. Asexual morph: Conidiomata 2–3 mm wide, 1–2 mm high, pycnidial, multilocular, thick-walled, dark brown, immersed to semi-immersed. Individual locules 220–230 mm wide, 350–420 mm high. Peridium 30–40 μm comprising 3 layers with an outer thick-walled cell of dark-brown textura angularis, middle layer pale brown and inner layer nearly hyaline cells of textura angularis. Ostioles circular and central on each locule, non-papillate.  Paraphyses 0.8–1.5 μm wide, filiform, septate, unbranched, arising between the conidiogenous cells. Conidiogenous cells 1.9–3.0 × 4.4–5.6 μm (x̄ = 2.4 × 4.7 µm, n = 10), cylindrical, hyaline, unbranched, discrete, arise from the inner conidiomatal wall with one conidium at the tip and proliferating per currently to form one or two annellations. Conidia 30–45 × 4.6–8.6 μm (x̄ = 34.4 × 6.7 µm, n = 10), hyaline, aseptate, ellipsoidal to fusiform, wide in the middle, apex acute, base truncate, contents granular.

Material examined: Italy, Rocca delle Caminate - Predappio (province of Forlì-Cesena [FC]) on Quercus (Fagaceae), 2nd March 2017, Erio Camporesi (MFLU 17-0726).