 Description： |
Basidiocarp pileate, sessile, single or imbriate, semicircular or almost circular, usually with umbo, always around branches of living angiosperms, up to 12 cm diam. and up to 3 cm thick at the base, generally hard, slightly spongy for the tomental part. Upper surface brown to dark brown, with several distinctly sulcate zones, with thick and compressed tomentum; margin sharp or obtuse, yellow. Tomentum up to 2.5 cm thick at pileal base, thinning towards pileal margin, separated from the context by a thin black zone, section brown. Context up to 4 mm thick, yellowish brown. Tubes up to 4 mm deep, ivory yellow. Hymenial surface brown or pale brown, poroid. Pores angular, 6-8 per mm. Hyphal system monomitic; hyphae simple- septate. Tomental hyphae brown, fairly straight, 3.5-8 μm diam., with 1-2 μm thick walls. Contextual hyphae brown, 3-6 μm diam., with 1-2 μm thick walls, quite often with secondary septa. Cystidia lacking. Basidia subclavate, 20-25 × 4-4.5 μm, 4-sterigmate. Basidiospores yellow to pale brown, subglobose, smooth, thin- or slightly thick-walled, 2.8-3.5 × 2.5-3 μm, IKI–, CB–. |
| Specimens： |
Taiwan. Taitung: Orchid Island, between trash treatment field and Tienchih, alt. 100 m, on branch of living Alyxia insularis, 1 May 1997, Wu 9705-7, 9705-44, 9705-46 (TNM); alt. 250 m, on branch of living A. insularis, 22 Apr 1997, Chen 577 (TNM). |
Phylum：Basidiomycota >> Class： Basidiomycetes >> Order： Hymenochaetales