Description: This is one of the smallest of the twig-inhabiting Lecanora species in Ireland. It is frequently found alongside Lecania cyrtella, L. naegellii and Caloplaca cerinella and other pioneer lichens growing in the earliest wave of twig colonisation, often in a zone just below the first flush of scar tissue. It tolerates mild nutrient enrichment. The thallus is barely a stain, thin and grey. Discs are frequently <0.4mm diam., beige to red-brown, flat. The asci are eight-spored. Spot tests negative. Rather thinly scattered in Ireland, but grossly under-recorded.

Key Identification Features:

• Early pioneer of deciduous twigs (oak, ash, sycamore) co-dominant with a handful of other micro-lichens
• Discs, eight-spored, minute, concave at first, becoming flat at maturity; thallus inconspicuous.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Myriolecis persimilis at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Myriolecis persimilis at iNaturalist World Species Observations database.