Description: This is a species of moist ravine habitat, a thin fluffy green or yellow-brown thallus with blue-black discs (0.25–0.4mm diam.). Spores are unusual: three- to five-septate (21–26 x 3–4.5µm) and waisted at the septa. It grows on mossy rock about 30m from prominent waterfall; Killarney, County Kerry.

Key Identification Features:

• Thallus thin, leprose green to yellow-brown
• Discs blue-black, spores three- to five-septate narrowing at the septa; bouldery rocks near waterfall.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Byssoloma llimonae at iNaturalist World Species Observations database.