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Lomaantha phragmitis sp. nov. is described and illustrated from a specimen collected on dead culms of Phragmites communis in southern China. The fungus differs from other described Lomaantha species in its conidiophores, conidiogenous cells and conidial appendages. Conidial morphology and presence or absence of percurrent proliferation of conidiogenous cells are the main characters distinguishing species within this genus. We provided a key and synoptic table of morphological characters of all three Lomaantha species. [ABSTRACT FROM AUTHOR]

Two new species of Stemphylium (anamor-phic Pleospora) are described on the basis of morphological characters and molecular phylogenet-ic analyses. Stemphylium phaseolina and S. variabilis were isolated respectively from diseased leaves of Phaseolus vulgaris L. in Hebei Province, China, and from diseased leaves of Alliµim sativum L. in Angres, France. The two species exhibit characteristic Stemphylium morphology but are distinct from similar species based on the morphology and development of conidia. The internal transcribed spacer (ITS) nuclear rDNA region and glyceraldehyde-3-phosphate dehydrogenase (gpd) genes were sequenced. The results of maximum parsimony (MP) and maximum likelihood (ML) phylogenetic analyses of the combined DNA sequences of these two gene regions supported S. phaseolina and S. variabilis as two distinct phylogenetic species. The taxonomic descriptions of the new species and their comparison with related species are presented, together with the phylogenetic analysis based on combined DNA sequences of ITS and gpd gene regions. [ABSTRACT FROM AUTHOR]

A new species of Ulocladium was isolated from diseased leaves from two Cucumis sp. growing in Sinkiang and Gansu provinces of China. Conidia were isolated from necrotic leaves and used to establish single-spore pure cultures. Conidia were harvested from cultures 7 d after incubation for morphological comparisons. The morphology of this species resembles that of U. botrytis and U. consortiale. However it is distinguished from these two species by the sizes of obovoid to broadly ellipsoidal conidia and longer conidiophores. A taxonomic description of U. cantlous, comparison with related species in this genus, and a species phylogeny based on the partial nucleotide sequence of the glyceraldehyde-3-phosphate dehydrogenase (gpd) gene and the Alternaria alternata major allergen (Alt a 1) gene are provided. [ABSTRACT FROM AUTHOR]

Piricaudiopsis punicae sp. nov., P. rosae sp. nov. and P. rhaphidophorae sp. nov., occurring respectively on dead branches of Punica granatum, Rosa chinensis and Rhaphidophora decursiva were collected from tropical forest in southern China. They differ from the three previously described Piricaudiopsis species in conidial morphology and proliferation of the conidiogenous cell. The presence or absence of percurrent proliferation of the conidiogenous cells and conidial appendages and the height of conidia are recognized as important characters in the delimitation of species of Piricaudiopsis. A key to Piricaudiopsis species is provided. [ABSTRACT FROM AUTHOR]