 The cap is typically between 3 – 10 cm ( 1 @.@ 2 – 3 @.@ 9 in ) in diameter , broadly convex with a small umbo ( a central elevation ) to flat with age . The cap margin is curved inwards in young specimens , and may have remnants of a yellowish , cottony veil hanging from it . The cap surface is colored bright yellow with red or brownish streaks and hairy patches . When the fruit body is young and moist , the surface is slimy ; as the cap matures and dries out , it becomes sticky or tacky . 
