Wrightoporia (Basidiomycota, Hericiales) species and their allies collected in Japan

I report seven species of Wrightoporia, including one undetermined species and one Taiwanoporia sp., collected in Japan. The following species are newly described: Wrightoporia aurantipora, W. labyrinthina, W. straminea, and Taiwanoporia roseotincta. Wrightoporia avellanea and W. lenta are newly reported for Japan. A detailed description is also provided for W. japonica, a poorly known species described from Japan. Wrightoporia aurantipora is characterized by the resupinate basidiocarp, orange-tinted pores, skeletal hyphae with restricted dextrinoid reaction, and lack of gloeoplerous hyphae. Wrightoporia labyrinthina is characterized by the resupinate basidiocarps, labyrithiform hymenophore, and abundant gloeoplerous hyphae. Wrightoporia straminea is characterized by the resupinate basidiocarps, the skeletal hyphae with restricted dextrinoid reaction, and SV+cystidia. Taiwanoporia roseotincta is characterized by the sappy and pinkish-white basidiocarps and monomitic hyphal system without clamp connections.