Neoarthrinium moseri (W. Gams) Voglmayr comb. nov.

Basionym.

Wardomyces moseri W. Gams, Beih. Sydowia 10: 67 (1995)

Notes.

Based on a placement within Xylariales in phylogenetic analyses, Sandoval-Denis et al. (2016) excluded this species from the genus ( Microascales); however, they did not suggest an alternative generic classification. The blastic hyaline, smooth, lageniform conidiogenous cells aggregated in clusters and the subglobose to ellipsoid dark brown conidia with a longitudinal germ slit (Gams 1995) fully matched the genus Neoarthrinum . The ITS, LSU and tub2 sequences of the ex-holotype strain of N. moseri (CBS 164.80) are almost identical to those of N. trachycarpi, indicating that they may be synonymous. Both species were isolated from petioles of palms: N. moseri from Mauritia minor Burret in Colombia and N. trachycarpi from Trachycarpus fortunei (Hook.) H.Wendl. in China. However, the two species were reported to differ in conidial size (10-14 × 3-4.5 µm in N. moseri vs. 6.1-8.5 × 4.2-5.8 μm in N. trachycarpi; Gams 1995; Yan et al. 2019) and for the time being, we therefore kept them separate.