Endodothiora sydowiana Petr., Annls mycol. 27(5/6): 345 (1929).

Index Fungorum number: IF 279628; MycoBank number: MB 279628; Facesoffungi number: FoF 00083

Parasitic on Dothidea puccinioides. Sexual state: Ascostromata 250−310 µm high × 200−600 µm diam., gregarious, black, immersed, becoming erumpent solitary or scattered, subglobose to broadly ellipsoid, coriaceous, multiloculate, with 2−5 locules, cells of ascostromata dark brown to black cells of textura angularis. Locules 120−140 µm × 110−120 µm ( = 137 ×114 µm, n = 5) globose to subglobose, without ostioles. Peridium of locules 20−28 µm ( = 23 µm, n = 5), thin-walled, composed of light brown to hyaline cells of textura angularis. Asci 90−115 µm × 21−35 µm ( = 96 ×32 µm, n = 10), 20−26-spored, bitunicate, cylindrical to broadly cylindrical with a short pedicel, rounded at the apex. Ascospores 16−30 × 6−9 µm ( = 19 × 7 µm, n = 20), overlapping, crowded, hyaline, oblong, hyaline, 5−7 septate, constricted at the primary septum, smooth-walled. Asexual state: Unknown.

Material examinedABKHAZIA, on dead stem of Buxus sempervirens L. (Buxaceae), 27 March 1912, G. Woronow (W 12058, holotype).

Fig. 1 Endodothiora sydowiana (W 12058, holotype). a, b Ascostromata of E. sydowiana. c, d Vertical section through ascostromata illustrating the structure. e Vertical section of ascostromata showing the loculi bearing the asci inside. f Asci. g Asci in cotton blue reagent. h, i Ascospores in cotton blue reagent. Scale bar: b = 500 μm. c-e = 100 μm. f-i = 10 μm.