Heterochaete delicata

A curious tropical fungus with short dark spines on the hymenium.

Monomitic hyphal system, with cylindrical hyphae thin- to moderately thick-walled, 2-5 µm wide, sparingly branched, septate with clamp connections at the septa.

Supporting hyphae of the aculei or spines densely compacted, interwoven, with yellowish intracellular pigment.

Basidia ovoid to ellipsoidal, 16-25 µm long and 10-15 µm wide, with a longitudinal septum and long sterigmata up to 25 µm long.

Spores cylindrical to allantoid, large, hyaline, smooth, thin-walled, with abundant vacuolar internal content.

Herbarium material available: JTP2153/24.