A systematic account of the genus Plagiostoma (Gnomoniaceae, Diaporthales) based on morphology, host-associations, and a four-gene phylogeny

• DOI: 10.3114/sim.2011.68.10
• Publication Date: 2011-03-29T16:58:01Z
• Authors: L.C. Mejía; L.A. Castlebury; A.Y. Rossman; M.V. Sogonov; J.F. White
• Keywords: Salicaceae; Morphology; Herbaceous plant

Members of the genus Plagiostoma inhabit leaves, stems, twigs, and branches woody herbaceous plants predominantly in temperate Northern Hemisphere. An account all known species including Cryptodiaporthe is presented based on analyses morphological, cultural, DNA sequence data. Multigene phylogenetic sequences from four genes (β-tubulin, ITS, rpb2, tef1-α) revealed eight previously undescribed an association between a clade composed 11 host family Salicaceae. In this paper these new are described, redescribed, combinations proposed. A key to 25 accepted host, shape, size perithecia, perithecial arrangement microscopic characteristics asci ascospores provided. Disposition additional names also discussed.