Ceriporia sericea Spirin & Vlasak sp. nov. Figure 11e

Holotype .

Russia. Khabarovsk: Khabarovsk Dist., Malyi Niran, Tilia amurensis, 6 Aug 2012, Spirin 4944 (H).

Etymology.

Sericeus (Lat.), silky, refers to the soft consistency of basidiocarp

Description.

Basidiocarps 0.3-0.5 mm thick, up to 4 cm in the widest dimension. Margin narrow (up to 1 mm wide). Pore surface cream-colored to pale ochraceous, pores 3-5 per mm. Subicular hyphae subparallel, 4.4-9.4 µm in diameter, some inflated. Tramal hyphae 3.2-4.8 µm in diameter. Subhymenial hyphae 2.9-3.7 µm in diameter. Basidia 10.4 –13.8×3.4– 5 µm . Basidiospores thin-walled, hyaline, thick cylindrical, ventral side concave (bean-shaped), (3.8)3.9 –4.8(5.2)×(2.1)2.2– 2.7 µm, L=4.32 µm, W=2.38 µm, Q=1.82.

Remarks.

Ceriporia sericea is characterized by soft, pale-colored, rhizomorphic basidiocarps and medium-sized, bean-shaped spores.