Pleosporales » Phaeosphaeriaceae » Didymocyrtis

Didymocyrtis consimilis

Didymocyrtis consimilis Vain., Acta Soc. Fauna Flora fenn. 49(no. 2): 221 (1921).

            Index Fungorum number: IF 247205; Facesoffungi number: FoF 11634, Fig. 1


Lichenicolous. Sexual morphAscomata 110–150 μm diam., 110–129 μm high, perithecioid, subglobose, brown, immersed in the hymenium of the host, with a central ostiole. Peridial wall 15–20 μm comprising brown cells of textura angularis. Hamathecium 2.0–2.5 μm few, comprising cellular pseudoparaphyses, sparsely branched.  Asci 45–60 × 8.5–10.9 μm (x̄ = 51.5 × 9.9 µm, n = 10), bitunicate, cylindrical to clavate, (6 –)8-spored with a small ocular chamber, sessile. Ascospores 10.8–12.1 × 4.1–5.2 μm (x̄ = 12.1 × 4.7 µm, n = 10), biseriately arranged in the ascus, ellipsoid to narrowly ellipsoid, the upper end rounded, the lower one attenuated, pale to olivaceous brown, distinctly verruculose, 1-septate, constricted at the septum. Asexual morphConidiomata 65–107 μm diam., 90–95 μm high, intermixed with the perithecia in the host hymenium, of the same size and colour.  Conidiomatal wall 7.8–9.1 μm comprising 1–2 layers of brown compressed cells of textura angularis, inner layer hyaline and outer layer brown.  Conidiogenous cells 2.9–5.9 × 1.9–2.3 μm (x̄ = 2.9 × 2.2 µm, n = 10), lining the pycnidial cavity, ellipsoidal, hyaline, smooth. Conidia 6.5–7.6 × 4.4–5.1 μm (x̄ = 7.1 × 4.6 µm, n = 10), hyaline, smooth, ellipsoid or suborbicular to somewhat irregular, nearly truncate at one end, with one or two big guttules.

Material examined: Europe, Austria, Steiermark (= Styria), Eastern Alps, Northern Limestone Alps, Ennstaler Alpen, Lugauer SW of Hieflau, western summit, surroundings of the summit cross, 47o33’12” N/14o43’20” E, c. 2210 m alt., GF 8454/1, limestone cliffs and patches of Caricetum firmae exposed to NW, on plant remnants and bryophytes, on Caloplaca tiroliensis (Teloschistaceae) (apothecia), 3rd July 2005, Hafellner J. (BR5030102293357).