Cladonia convoluta. Very like Cladonia foliacea, but more robust, less incised and usually less upright. Way back in 1972, I found a strange lichen in Hampshire, and showed it to Peter James who identified it as this, the first 20th Century record for Britain. It is on the extreme northern edge of its range in the UK, and since then it has been found in scattered sites in the south, often near the sea, and usually in short, calcareous grassland. Due to confusion with C. foliacea, it is probably over recorded. This photograph was taken in Les Blanches Banques in Jersey where it occurs over a rather small area.