Tropicoporus sideroxylicola

Tropical species, parasitic or saprophytic on angiosperm wood, with sessile basidiocarps, shell-shaped or fan-shaped, with a rugose, blackish upper surface, often with abundant bryophytes on its surface, with 2 to 4 round pores per mm, brown, and with a woody, coriaceous consistency.

Context with a monomitic hyphal system, with only generative hyphae with thin to moderately thick walls, yellowish, 3.5 to 5.5 µm wide, septate with simple septa.

Hymenium with a dimitic hyphal system, with golden-brown, thick-walled skeletal hyphae, without septa, 3 to 4.5 µm wide, and thin-walled, hyaline to yellowish generative hyphae, 2 to 3.5 µm wide, septate with simple septa.

Hymenial setae not observed, although according to literature, it may present subulate to ventricose, dark brown setae, 20 to 35 µm long by 6 to 8 µm wide.

Cystidioles present among the basidia, lageniform, thin-walled, 11 to 15 µm long by 4 to 6 µm wide.

Basidia clavate, 10 to 15 µm long by 5 to 7 µm wide, with a simple base and tetrasporic.

Spores subglobose to ellipsoidal, smooth, thick-walled, yellow under the microscope, 5.5 to 7 µm long by 4.5 to 5.5 µm wide, and without reaction in Melzer's reagent (indextrinoid).

Herbarium material available: JTP2675/25.