Diaporthe psoraleae-pinnatae Crous & M. J. Wingf.

Diaporthe psoraleae-pinnatae Crous & M. J. Wingf., Persoonia 31: 205 (2013) Suppl. material 5 Specimens examined. China • Beijing, Changping District, Heishanzhai Village, from branches of J. regia, Y. Zhang, L. L. Zhao and L. Zhang, 26 August 2022 (HSZ-1, culture CGMCC 3.28292; HSZ-5, culture CGMCC 3.28293, CGMCC 3.28296). Notes. Diaporthe psoraleae-pinnatae was first described from dieback branches of Psoralea pinnata in South Africa (Crous et al. 2013). Recently, the entire section Psoraleae-pinnatae has been identified as a single species and named Diaporthe psoraleae-pinnatae, with D. aquatica, D. bauhiniae, D. ellipsospora, D. incomplete, D. jinxiu, D. rhoina, D. shaanxiensis, and D. varians all treated as its synonyms (Dissanayake et al. 2024). Phylogenetically, three isolates clustered together with D. psoraleae-pinnatae (Fig. 4); the base pair similarity shows 100 % (469 / 469) on cal, 97.7 % (452 / 452) on his, 97 % (508 / 524) on ITS, 100 % (329 / 329) on tef 1 - α, and 100 % (470 / 470) on tub 2 compared to the ex-type of D. psoraleae-pinnatae. Morphologically, conidiogenous cells and alpha conidia are similar to the ex-type isolate of D. psoraleae-pinnatae (6–19 × 1.5–2.5 vs. 8–15 × 2–3 μm) and (7.5–10.5 × 2.0–3.0 vs. 9–10 × 2.5–3 μm) (Table 1) (Crous et al. 2013). In this study, D. psoraleae-pinnatae was collected from Beijing. This is the first report of D. psoraleae-pinnatae occurring on J. regia.