Botryosphaeriales » Botryosphaeriaceae


Tiarosporella Höhn., in Weese, Ber. dt. bot. Ges. 37: 159 (1919).

Index Fungorum number: IF 10233; Facesoffungi number: FoF 00333, 8 morphological species (Species Fungorum, 2022), 5 species with molecular data.

Saprobic or endophytic on the host plant in terrestrial habitat. Sexual morph: Unknown. Asexual morph: Conidiomata brown to dark brown, pycnidial, solitary to gregarious or confluent, immersed, globose to subglobose, unilocular, glabrous, ostiolate. Ostiole circular, centrally located. Conidiomatal wall composed of thick-walled, brown to pale brown cells of textura angularis to textura prismatica. Conidiophores formed from the inner layer of pycnidium, hyaline, short-cylindrical or dolliform, septate, smooth-walled. Macroconidiogenous cells hyaline, cylindrical to ampuliform, indeterminate, smooth-walled, with or without proliferations. Macroconidia hyaline, fusiform or long clavate, aseptate, smooth-walled, bearing 2 or 4 tentaculiform, undulate or 1 flame-shape or irregular, mucoid, appendages at apex and sometimes 1 subcylindrical or irregular appendage at base. Microconidiogenous cells hyaline, ampuliform, integrated or sympodial, smooth-walled. Microconidia when present, hyaline, globose to ovoid, truncate at base, unicellular, smooth-walled (Adapted from Li et al., 2020).


Type species: Tiarosporella paludosa (Sacc. & Fiori) Höhn.


Notes: Tiarosporella is characterised by smooth, hyaline per currently proliferating conidiogenous cells that lack periclinal thickenings. Conidia are hyaline, subcylindrical to fusiform with irregular mucoid appendages. Li et al. (2020) provided an account of the genus. Molecular markers available for Tiarosporella are ITS, LSU, SSU, BTUB, RPB2 and TEF-1.


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