Darkera pseudotsugae (H.S. Whitney, J. Reid & Piroz.) Crous, 2015

Crous, Pedro W., Müller, Michael M., Sánchez, Romina M., Giordano, Lucrecia, Bianchinotti, M. Virginia, Anderson, Freda E. & Groenewald, Johannes Z., 2015, Resolving Tiarosporella spp. allied to Botryosphaeriaceae and Phacidiaceae, Phytotaxa 202 (2), pp. 73-93 : 85

Darkera pseudotsugae (H.S. Whitney, J. Reid & Piroz.) Crous , comb. nov. MycoBank MB811247

Basionym: Tiarosporella pseudotsugae H.S. Whitney, J. Reid & Piroz., Canadian Journal of Botany 53: 3057 (1975)

Note:— This taxon is known to occur on Pseudotsuga spp. , with conidia being (33–)40–65 × (4–)6–7 μm ( Karadžić 1998). Based on its ecology (on conifer needles), as well as morphology (large unilocular conidiomata and long, wide conidia), it clearly is better accommodated in Darkera rather than Tiarosporella , and hence a new combination is herewith proposed for this taxon.

Higher order classification: — Dothideomycetes, Botryosphaeriales , Botryosphaeriaceae

Eutiarosporella Crous , gen. nov. MycoBank MB811248

Etymology:— Named after its morphological similarity to the genus Tiarosporella .

Distinguished from Tiarosporella by having conidiomata with long necks, and having holoblastic conidiogenesis. Similar to Marasasiomyces , except conidiomata frequently in clusters.

Conidiomata pycnidial, uni- to multilocular, dark brown to black, globose, rostrate with elongated necks, with or without setae, aggregated in clusters. Conidiophores reduced to conidiogenous cells. Conidiogenous cells lining the inner cavity, holoblastic, determinate, cylindrical, hyaline, smooth. Conidia solitary, hyaline, smooth, thin-walled, straight, ovoid to fusoid, apex obtuse, base truncate, with a cone-like mucoid apical appendage.

Type species:— Eutiarosporella tritici (B. Sutton & Marasas) Crous