Abstract
Taiwan is a phytogeographically isolated area, with a rate of ca. 40% endemism in higher plants. In this study, the strong tendency towards genetic isolation and speciation ofBotryobasidium subcoronatum (Basidiomycota) from Taiwan is evaluated in comparison with European specimens. Mating tests amongB. subcoronatum specimens collected in Taiwan and Europe were performed. Mon-mon and di-mon matings confirm different intersterility groups or biological species. The biological species concept was compared with results from morphological comparison and molecular data from mtSSU rDNA and the nuclear ITS2 region. Three intersterility groups have been detected comprising European and Taiwanese strains from temperate and subtropical areas. MtSSU rDNA and the ITS2 rDNA sequences confirm consepecifity ofB. subcoronatum.
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