Locally common in association with pines. Lemony-coloured cap, quite slimy when young but dryer with a leathery feel with age. Largely confined to the Scottish Highlands; rare elsewhere in Britain and Europe

References: 
Kibby (2011) British Boletes with keys to species
Breitenbach & Kranzlin (1991) Fungi of Switzerland, Volume 3, Boletes and Agarics, 1st Part
Watling & Hills (2005) British Fungus Flora 1: Boletes and their Allies