Orbilia leucostigma

On decaying fallen wood on the ground, with sessile disc-shaped apothecia 0.3–0.5 mm in diameter, translucent, white with faint greyish tints, and a slightly raised margin.

Medullary excipulum of textura intricata to textura angularis, with hyaline hyphae 25–30 µm long.

Ectal excipulum composed of thin-walled, hyaline cells of textura globulosa, 5–18 µm in diameter.

Asci cylindrical-clavate, 8-spored, measuring 35–45 µm long by 3.5–5 µm wide, with spore arrangement biseriate above and uniseriate below, with a bifurcate (forked) base.

Paraphyses filiform, 1–2 µm wide in the middle, terminating in capitate apices 2.5–4 µm wide.

Ascospores allantoid to horseshoe-shaped, smooth, hyaline, thin-walled, measuring 2.5–4 µm long by 1–1.6 µm wide, with two minute globose spore bodies (refractive inclusions) situated at opposite poles.

Herbarium material available: JTP2117/24.