Trametes ectypa

A little-known subtropical species native to the southeastern United States and widely distributed in the Caribbean, with pileate basidiocarps, shell- or fan-shaped, 4 to 8 cm in diameter, with a glabrous surface concentrically multizoned with brownish to whitish tones, 5 to 6 rounded pores per mm, whitish to cream, with concolorous tubes and whitish flesh when cut.

Trimitic hyphal system, with thick-walled skeletal hyphae, aseptate, 3 to 7 µm wide; generative hyphae hyaline, thin-walled, 2 to 4 µm wide, septate and with clamp connections; and binding hyphae profusely branched, 1 to 3 µm wide, up to 5 µm wide in the main branch.

Hyphae of the pileipellis with emergent elements, containing brownish intracellular pigment, with rounded to subcapitate endings.

Without cystidia or other sterile elements in the hymenium.

Basidia not observed; reported in literature as clavate and 4-spored.

Spores cylindrical to slightly allantoid, smooth, hyaline, thin-walled, with an eccentric apiculus at one end, 5 to 7.5 µm long, 2 to 2.5 µm wide, inamyloid in Melzer's reagent.