Description
Less than 1cm: Use magnifying glass.
Fruit-body bottle-shaped with long neck, Ø 0.5-1 mm. Perithecia black, groups of 2 to 8 with long necks, surrounded by a few long brown hairs, breaking through the bark from a stroma.
Stroma black.
Occurrence
On branches of broad-leaved trees (Elm, Alder, Beech).
Winter to spring.
Saprophyte.