Work

Phragmidium rosae-multiflorae Dietel

Year: 2026

Type: article

Abstract: Phragmidium rosae -multiflorae Dietel, Hedwigia 44: 132. 1905 Description. Spermogonia and aecia not seen. Uredinia hypophyllous, 0.1–0.3 mm diam.; urediniospores 18–22 × 16–18 μm, densely echinulate. Telia hypophyllous, black, 0.3–0.6 mm diam.; teliospores 5–7 - celled, 62–81 × 23–25 μm, coarsely verrucose, apical papillae absent or up to 5 μm long; pedicels 73–93 × 13–17 μm, swollen from middle to lower part. Specimens examined. China, • Jiangxi, Ganzhou City, Zhanggong District, Fengshan National Forest Park, on Rosa multiflora Thunb. var. cathayensis Rehd., 23 Jul. 2018, Yingmei Liang and Yun Liu (BJFCR 03542, BJFCR 03544). For a complete list of all specimens examined, see Suppl. material 1. GenBank numbers. ITS: MW 729591 (BJFCR 03542), MN 264721 (BJFCR 03544); LSU: MW 729515 (BJFCR 03542), MN 264739 (BJFCR 03544). Notes. First described from Japan on Rosa multiflora (Dietel 1905), this species is characterized by its distinctive pedicels: subequal in length to the teliospores, pale brown above, and gradually becoming hyaline downward, with the swollen portion occupying approximately half of the pedicel length (Liu 2021). Phylogenetic analysis shows that Chinese specimens form a well-supported clade with sequences from Japan (Fig. 1), indicating a genetically cohesive population across East Asia.

Parent work: Diversity and taxonomy of Phragmidium on Rosa in China, with descriptions of two new species

DOI: 10.5281/zenodo.21843013

Authors: Liu, Yun, Zhao, Zelin, Du, Zhimin, Xing, Xiuhan, Jiang, Ning, Ono, Yoshitaka, Liang, Yingmei

Institutions: Shangdong Agriculture and Engineering University, Chinese Academy of Forestry, Institute of Forest Ecology, Environment and Protection, University of Tsukuba, Ibaraki University, Beijing Forestry University

Language: English

Topic: Yeasts and Rust Fungi Studies

Subfield: Microbiology

Field: Immunology and Microbiology

Domain: Life Sciences

Open Access status: green

OpenAlex ID: W7201840468

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