Phylum: Basidiomycota Family: Hygrophoraceae
Hygrocybe calciphila Arnolds
A rare species preferring base-rich grassland so well suited to machair. Difficult to separate in the field from similar small red species, especially H. miniata. Occasionally, orangey colour-morphs appear which are confusing. They can also appear orangey when faded or washed-out.
Boertmann, D. (2010 revised second edition) The Genus Hygrocybe
Hedger, J. & George, D. (2018) Lundy Fungi: a photographic guide
Wood, E. & Dunkelman, J. (2017) Grassland Fungi: a field guide
Harries, D. (2017) A Guide to Waxcaps in West Wales