 Measuring 3 – 7 cm ( 1 @.@ 2 – 2 @.@ 8 in ) in diameter , the greyish or brownish @-@ grey cap is initially bell @-@ shaped , is furrowed , and later splits . The colour is more brownish in the centre of the cap , which later flattens before melting . The very crowded gills are free ; they are whitish at first but rapidly turn black and easily <unk> . The short stipe measures 7 – 17 cm ( 2 @.@ 8 – 6 @.@ 8 in ) high by 1 @.@ 5 cm in diameter , is grey in colour , and lacks a ring . The spore print is dark brown , and the almond @-@ shaped spores measure 8 – 11 by 5 – 6 μm . The flesh is thin and pale grey in colour . 
