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In this study, four new species of Phragmidium were proposed based on morphological and molecular characters. In morphology, Phragmidium rosae-roxburghii sp. nov. was distinguished to related taxa by its unique square to diamond-shaped urediniospores; Ph. rubi-coreani sp. nov. differed from Ph. barclayi and Ph. cibanum because of teliospores with fewer cells and shorter pedicels; urediniospores of Ph. potentillaefreynianae sp. nov. were bigger than Ph. duchesneae-indica; and Ph. rosae-laevigatae sp. nov. produced bigger urediniospores than Ph. jiangxiense. The phylogenetic analyses based on the combination of two loci (ITS and LSU) also supported our morphological conclusion. In the meantime, three previously known species were also described herein. [ABSTRACT FROM AUTHOR]

Eucommia ulmoides is a rare tree species in China with high medicinal and gum value. Nine strains of hyphomycetous fungi were isolated from the leaf litter of E. ulmoides in Guizhou Province. Preliminary identifications based on ITS indicated that they belong to the genus Cladosporium. Morphology and phylogenetic analyses based on the internal transcribed spacer regions (ITS) of the nrDNA, the partial translation elongation factor 1-a (tef1) gene and partial of actin (act) gene confirmed that the strains represent four species, including two novel taxa, viz., Cladosporium eucommiae and C. guizhouense and two new substrate records for known species. [ABSTRACT FROM AUTHOR]

Five Curvularia strains isolated from diseased leaves of lemongrass (Cymbopogon citratus) in Guangxi Province, China, were examined. NCBI-Blast searches of ITS sequences suggested a high degree of similarity (99-100%) to Curvularia akaii, C. akaiiensis, C. bothriochloae, C. heteropogonis and C. sichuanensis. To accurately identify these strains, we further analysed their morphology and phylogenetic relationships based on combinations of ITS, GAPDH, and tef1 gene sequences. Morphological observations indicated that the key character differing from similar species was conidial size, whereas phylogenetic analyses indicated that the five strains represent one species that is also distinct from C. akaii, C. akaiiensis and C. bothriochloae by conidial size and conidiophore length. Thus, the strains examined are found to represent a new species described herein as Curvularia nanningensis. The pathogenicity test on the host and detached leaves confirmed the new species to be pathogenic on Cymbopogon citratus leaves. Standardised requirements for reliable identification of Curvularia pathogens are also proposed. [ABSTRACT FROM AUTHOR]

Three strains of the genus Diaporthe were isolated from different plant hosts in south-western China. Phylogenetic analyses of the combined ITS, ß-tubulin, tef1 and calmoudulin dataset indicated that these strains represented three independent lineages in Diaporthe. Diaporthe millettiae sp. nov. clustered with D. hongkongensis and D. arecae, Diaporthe osmanthi sp. nov. grouped with D. arengae, D. pseudomangiferae and D. perseae and Diaporthe strain GUCC9146, isolated from Camellia sinensis, was grouped in the D. eres species complex with a close relationship to D. longicicola. These species are reported with taxonomic descriptions and illustrations. [ABSTRACT FROM AUTHOR]

The morphology, ecology, and phylogenetic relationships of specimens of the family Boletaceae from subtropical and tropical China were investigated. Four species, Butyriboletus huangnianlaii, Lanmaoa macrocarpa, Neoboletus multipunctatus, and Sutorius subrufus, are new to science. Chalciporus radiatus and Caloboletus xiangtoushanensis are redescribed. Caloboletus guanyui is proposed to replace Boletus quercinus Hongo, an illegitimate later homonym. The recently described Tylopilus callainus is synonymized with the Japanese Boletus virescens, and the new combination T. virescens (Har. Takah. & Taneyama) N.K. Zeng et al. is proposed. Moreover, Neoboletus is treated as an independent genus based on evidence from morphology and molecular phylogenetic data in the present study, and many previously described taxa of Sutorius are recombined into Neoboletus: N. ferrugineus (G. Wu et al.) N.K. Zeng et al., N. flavidus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. hainanensis (T.H. Li & M. Zang) N.K. Zeng et al., N. obscureumbrinus (Hongo) N.K. Zeng et al., N. rubriporus (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. sanguineoides (G. Wu & Zhu L. Yang) N.K. Zeng et al., N. sanguineus (G. Wu & Zhu L. Yang) N.K. Zeng et al., and N. tomentulosus (M. Zang et al.) N.K. Zeng et al. [ABSTRACT FROM AUTHOR]

An undescribed Curvularia sp. was isolated from the leaf spot disease of Barbados Lily (Hippeastrum striatum (Lam.) Moore). Phylogenetic analyses of combined ITS, 28S, GPD1 and TEF1 sequence data place nine strains of this species in the trifolii-clade, but they clustered together as an independent lineage with strong support. This species was morphologically compared with related species in the trifolii-clade. Based on differences in morphology and phylogeny, it is concluded that this species is a new taxon, introduced as Curvularia microspora sp. nov. Pathogenicity testing determined the new species to be pathogenic on H. striatum. [ABSTRACT FROM AUTHOR]