The genus Anthracoidea (Anthracoideaceae) in Japan and some adjacent regions

要旨

Th is study endeavors to clarify the taxonomy of Anthracoidea species occurring in East Asia. Being a cosmopolitan genus, more widely distributed in temperate and subarctic regions of the Northern Hemisphere, Anthracoidea is insuffi ciently studied in East Asia, particularly in Japan and Korea. A comprehensive account of the species composition and distribution of the Anthracoidea species in Japan is presented herein. Further, information about the Anthracoidea species in the Kuriles, Sakhalin, and Korean Peninsula is also provided. Th ree new smut fungi are described and illustrated as follows: Anthracoidea caricis-grallatoriae on Carex grallatoria from Japan, Anthracoidea lanceolatae on Carex lanceolata from South Korea, and Anthracoidea pseudomichelii on Carex michelii from Central Europe. For Cintractia japonica on 'Carex capillacea', a new combination, Anthracoidea japonica, is proposed. Anthracoidea grallatoriae Vnky is a superfl uous name and a synonym of A. japonica. Th e existence of the type specimen of Cintractia subglobosa S. Ito makes the lectotypifi cation of C. subglobosa redundant. Similarly, a lectotype of Cintractia variabilis S. Ito is also made redundant. Based on a comparative morphological investigation, 20 Anthracoidea species were established in Japan, all of them on host plants of Carex. In addition to Anthracoidea caricisgrallatoriae, six other species, A. capillaris, A. humilis, A. irregularis, A. karii, A. michelii, a Teodor T. Denchev and Cvetomir M. Denchev have main contribution for the conduction of this study.

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