Cytospora chrysosperma (Pers.) Fr., Sylv.

Fan, Xin-Lei, Hyde, Kevin D., Yang, Qin, Liang, Ying-Mei, Ma, Rong & Tian, Cheng-Ming, 2015, Cytospora species associated with canker disease of three anti-desertification plants in northwestern China, Phytotaxa 197 (4), pp. 227-244 : 240

Cytospora chrysosperma (Pers.) Fr., Sylv. mycol. berol. (Berlin): 28 (1818).

= Naemaspora chrysosperma Pers., Syn. meth. fung. (Göttingen) 1: 108 (1801).

= Valsa sordida Nitschke, Pyrenomycetes Germanici 2: 203 (1870).

Host and Distribution: Known from Armeniaca vulgaris , Crataegus azarolus , Ficus carica , Ligustrum latifolium , Malus pumila , Morus alba , Olea sativa , Persica vulgaris , Prunus domestica , Robinia pseudoacacia and Thuja orientalis in Iran; Fraxinus in Europe and Iran; Juglans regia in Iran; Salicaceae in China, Iran, Netherland, South Africa, Switzerland, UK and the USA; Sophora japonica in China; Triticum in Germany; and Ulmus in USA.

Pathogen on twigs and branches of Salix psammophila .

Material examined:— CHINA Shaanxi Province: Yulin, Jichang East Road , 38°19’21.16” N, 109°39’54.73” E, 1124 m asl., on stems of Salix psammophila , collected by X. L. Fan, 1 Aug 2013 ( BJFC-S975 ) ; living culture, CFCC 89629 ; Yulin, Hongshi Gorge , 38°19’40.83” N, 109°42’37.98” E, 1092 m asl., on stems of Salix psammophila , collected by X. L. Fan, 29 Jul 2013 ( BJFC-S978 ) ; living culture, CFCC 89630 .

Notes: Cytospora chrysosperma is the most commonly recorded Cytospora species with a wide host range ( Deng 1963; Tai 1979; Wei 1979; Chen 2002; Zhuang 2005; Adams et al. 2006). In the current study, the isolates CFCC 89629 and CFCC 89630 were shown to be C. chrysosperma based on phylogenetic analysis and morphological characters. This is the first record of this species on Salix psammophila worldwide.

Cytospora chrysosperma has not been epitypified and therefore we treat BJFC CGHs 10 as an authentic specimen ( Fan et al. 2014). This has proved as consistent results from several other authors without epitypification ( Adams et al. 2005, 2006; Fotouhifar et al. 2010). It makes sense to epitypify this here for further study. Thus fresh collections of Cytospora chrysosperma are needed for epitypification.