Harpographium fasciculatum

Anamorph found in nature fruiting fasciculately on dead wood or stromata of other fungi, especially Xylariales.

Synnemata erect, composed of densely compacted, very dark brown hyphae, terminating in a whitish head where conidia are produced.

Phialidic conidiogenous cells located at the apex of the synnema, producing very elongate and slender conidia, with a sharply pointed end, slightly allantoid, smooth, hyaline, thin-walled, with faint vacuolar internal content.