Hyphodontia arguta

Basidiome completely resupinate, light cream with a whitish growing margin, odontioid surface, with irregular teeth up to 1 mm tall.

Monomitic hyphal system, with hyaline, thick-walled hyphae, 2-4 µm wide, with right-angled branching, septate with clamped septa.

Cystidia of two types: conical lagenocystidia with abundant incrustations especially at the apex, 25-35 µm long and 2-4 µm wide; and leptocystidia-like cystidia, subcapitate to capitate, moderately thick-walled, 35-55 µm long and 3-4 µm wide, some capped by an apical amorphous mass.

Basidia cylindric-clavate, small, 12-18 µm long and 3-4 µm wide, with basal clamps, 4-spored.

Spores subglobose to ovoid, smooth, hyaline, thin-walled, with an eccentric apiculus at one end, containing a large internal oil droplet, inamyloid in Melzer's reagent.

Herbarium material available: JTP2258/24.