Two New Species of (Agaricales, Basidiomycota) from Korea.

Species of (Hydnangiaceae, Agaricales, and Basidiomycota) are well-known ectomycorrhizal symbionts of a broad range of hosts. species are characterized by brown, orange, or purple colored basidiocarps, and globose or oblong, echinulate and multinucleate basidiospores. While some species are easily identified at the species level using only the morphological characteristics, others are hard to distinguish at the species level due to small differences in morphology. Heretofore, ten species have been reported in Korea. While studying the fungal diversity in the National Parks of Korea, two new species were discovered. Species identification was done based on molecular analyses (ITS, 28S rDNA, 2, and 1), then were confirmed by their corresponding morphologies. The two newly discovered species are proposed here as and . The unique morphological characters of . that distinguish it from its closely related species are orange-brown colored basidiocarp, long basidia and the absence of cheilocystidia. is characterized by a light grayish lavender-colored pileus and the absence of cheilocystidia. Two new species are described and illustrated in the present paper.