New Findings on Rust Fungi from Iran

Five new species and a new variety of rust fungi (Pucciniales) are described from Iran: Uromyces matinii on Gagea dubia, Uromyces arasbaranensis on Silene italica, Uromyces taleshensis on Colchicum sp., Uromyces kaviriae on Kaviria gossypina, Uromyces iranensis on Hordeum vulgare, and Puccinia calcitrapae var. cirsii-rhizocephali on Cirsium rhizocephalum. Puccinia suaveolens var. karajensis is proposed as a new combination for Puccinia punctiformis var. karajensis on Cirsium arvense. The following new names are made: Peristemma sonchicola and Uromyces liboschitzii. Several new synonyms (syn. nov.) for already-known rust species are proposed. Several new hosts (matrix nov.) for different rust fungi are also reported. Puccinia aristidae on Stipagrostis plumosa, Puccinia hibisci-trioni on Abelmoschus esculentus and Alcea sp., Puccinia marrubii on Marrubium crassidens, and Puccinia tatarica on Mulgedium tataricum are reported as new members for Iranian rust mycobiota. The aecial state of Puccinia kopetdaghensis is newly described. Identification keys for world-known Uromyces species on the genera Gagea and Silene are provided.