 The cap is 3 to 10 centimetres ( 1 @.@ 2 to 3 @.@ 9 in ) , rarely up to 12 centimetres ( 4 @.@ 7 in ) wide and more or less centrifugal @-@ shaped and round . It is at early stage convex and furled on the slightly churlish edge , and depressed in the centre and later flat , funnel @-@ shaped depressed . The cap skin is bare , greasy in moist weather and slightly shiny when dry . The cap is tangerine to orange @-@ brown , darker zoned towards the edges and dulls mainly yellow @-@ brown . In old age or after cold or frost it changes the colour more or less to dirty greenish or green @-@ spotted . 
