The BLS Spring meeting this 2025 is based at Plas Caerdeon outdoor adventure centre near Barmouth.
On Monday - Day 2 the group visited Coed Hafod y Llyn (Tan y Bwlch Centre buildings are here) (Tan-y-Bwlch railway station is the principal intermediate passenger station on the narrow gauge Ffestiniog Railway, which was built in 1836 to carry dressed slate from Blaenau Ffestiniog to Porthmadog for export by sea,)
Hypotrachyna horrescens (used to be called Parmelinopsis horrescens ) could be confused with Parmotrema crinitum - They both have Parmelia-like pale grey thalli. and some black cilia on the upper srface (like Desperate Dan's bristle. But H horrescens is smaller - lobes 1- and P crinitum has lobes to 15mm wide,3mm wide P. horrescens medulla is k- and the cortex is k yellow. P crinitum medulla is K orange.
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