Abstract

Stephanospora xibalba is described from the Yucatan peninsula, Mexico, based on morphological and molecular data. This species is characterized by the small red-orange basidiomata, broadly ellipsoid to ellipsoid basidiospores (6.8–11.6 × 6.3–9.5 µm) with a small (3.2–4.5 × 1–1.5 µm) partial corona, and the association with Gymnopodium floribundum.