Roussoella neopustulans D.Q. Dai, J.K. Liu & K.D. Hyde, in Liu et al. Phytotaxa 181(1): 15 (2014)

Hu, Hongmin, He, Minghui, Wu, Youpeng, Long, Sihan, Zhang, Xu, Liu, Lili, Shen, Xiangchun, Wijayawardene, Nalin N., Meng, Zebin, Long, Qingde, Kang, Jichuan & Li, Qirui, 2023, Taxonomic and phylogenetic characterisations of six species of Pleosporales (in Didymosphaeriaceae, Roussoellaceae and Nigrogranaceae) from China, MycoKeys 100, pp. 123-151 : 123

Roussoella neopustulans D.Q. Dai, J.K. Liu & K.D. Hyde, in Liu et al. Phytotaxa 181(1): 15 (2014)

Fig. 6

Descriptions.

See Liu et al. (2014).

Specimens examined.

China, Guizhou Province, Huaxi District, Guiyang Huaxi National Urban Wetland Park (26°2'2.34"N, 106°34'16.22"E), on dead branch of bamboo, 12 October 2022, 1130 m elev., Y.P Wu and H.M Hu, 2022HX25 (GMB0496; GMBC0496, living culture) .

Notes.

The sequence of our Roussoella neopustulans (2022HX25) forms a well-supported clade (85% ML, 0.92 BYPP; Fig. 2 ) with R. neopustulan (MFLUCC 11-0609). Roussoella neopustulans was originally introduced by Liu et al. (2014), with a description of the sexual morph only. Dai et al. (2017) provided a comprehensive description and illustrations for both the sexual and asexual morphs of this species. Our collection exhibits identical morphological characteristics to those detailed by Dai et al. (2017). This is the first report of this species in China.

Figures

Figure 2. RAxML phylogram of Roussoellaceae, based on a combined dataset of partial ITS, LSU, tef 1 and rpb 2 DNA sequences. The tree is rooted by Torula hollandica (CBS 220.69) and T. herbarum (CBS 111855). Bootstrap supports ML (MLB ≥ 75 %) and Bayesian posterior probabilities (BYPP ≥ 0.95) are given as MLB / BYPP above the branches. Sequences from newly-generated isolates are in red, bold letters, while those of ex-type isolates are shown in black, bold letters.

Figure 6. Roussoella neopustulans (GMB 0496) A specimen B, C appearance of ascomata on substrate D cross-section of ascostromata E longitudinal section of an ascoma F peridium G pseudoparaphyses H-K asci L-O ascospores. Scale bars: 0.5 mm (B-D); 10 μm (E-O).