 The cylindrical stem is often short and stubby , typically 4 – 7 cm ( 1 @.@ 6 – 2 @.@ 8 in ) tall by 1 – 2 cm ( 0 @.@ 4 – 0 @.@ 8 in ) thick , coloured yellowish and ornamented with sparse reddish @-@ brown granules . There is no ring . The base of the stem bears pink overtones and is attached to distinctively pink mycelial threads , which are visible when the fruit body is uprooted . The flesh is yellowish , thick and soft . In a colour reaction test with ammonia solution , the flesh turns reddish . 
