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Issue: Vol. 450 No. 2: 25 June 2020
Type: Article
Published: 2020-06-25
DOI: 10.11646/phytotaxa.450.2.5
Page range: 199–208
Abstract views: 32
PDF downloaded: 3

Clinoconidium inouyei comb. nov. (Cryptobasidiaceae), producing galls on shoot buds of Machilus japonica in Japan

University of Tsukuba, Ibaraki 305-8572, Japan. College of Forestry, Beijing Forestry University, Beijing 100083, China.
Department of Clinical Plant Science, Faculty of Bioscience, Hosei University, Koganei, Tokyo 184-8584, Japan.
Department of Clinical Plant Science, Faculty of Bioscience, Hosei University, Koganei, Tokyo 184-8584, Japan.
Cinnamonum Clinoconidium Cryptobasidiaceae evergreen tree Exobasidiales Lauraceae Machilus plant disease taxonomy Fungi

Abstract

A new combination, Clinoconidium inouyei, is proposed to accommodate Uredo inouyei (syn. Ustilago inouyei, Melanopsichium inouyei, Ustilago machili) from Japan, producing galls on shoot buds of Machilus japonica (Lauraceae). This taxonomic treatment is based on observations of gastroid sporulation in peripheral lacunae of the host galls and basidiospore morphology. This is also supported by phylogenetic analyses with LSU and ITS regions of rDNA. This species is morphologically and phylogenetically similar to C. onumae producing galls on shoot buds of Cinnamomum tenuifolium reported from Japan, but has larger basidiospores.