Two new species of Hymenochaete (Hymenochaetaceae, Basidiomycota) and H. colliculosa new to China from Shanxi Province

Hymenochaete angustispora and H. verruculosa spp. nov . are described and illustrated from Shanxi Province, northern China. Hymenochaete angustispora was collected on Vitex negundo , and is characterized by resupinate basidiocarps, the absence of a hyphal layer, and narrowly cylindrical to allantoid basidiospores 5–7 × 1.8–2.2 µm. Hymenochaete verruculosa was collected on Cornus sp. , and is distinct by the effuso-reflexed basidiocarps with a verruculose hymenophore, the presence of a cortex and hyphal layer, and small ellipsoid basidiospores 3.5–4.5 × 2–2.8 µm. Hymenochaete colliculosa , collected on Berberis sp. , is reported in China for the first time. The phylogeny of 57 Hymenochaete species was inferred from a concatenated dataset of nuc rDNA ITS1-5.8S-ITS2 (ITS barcode) and D1-D2 domains of nuc 28S rDNA (28S) sequences.