Ionomidotis fulvotingens

A small lignicolous ascomycete, yellowish-brown, up to 7 mm in diameter, growing caespitously and fasciculately.

Medullary excipulum composed of hyaline, filamentous, thin-walled hyphae, densely compacted and chaotically interwoven, 2-3.5 µm wide.

Ectal excipulum composed of subglobose to polygonal, thick-walled hyphae up to 12 µm wide, with abundant yellowish-brown intracellular pigment.

Asci cylindric-clavate, 8-spored, with biseriate to slightly irregular spore arrangement occupying almost the entire ascus, 40-50 µm long and 4-5 µm wide, with basal croziers, inamyloid in Melzer's or Lugol's solution.

Paraphyses filiform, smooth, hyaline, simple, unbranched, up to 2.5 µm wide, projecting very slightly above the asci.

Ascospores cylindrical to slightly allantoid, smooth, hyaline, thin-walled, biguttulate with a droplet at each pole, inamyloid in Melzer's reagent.

Herbarium material available: JTP2566/25.