 The cap of L. rupestris is 60 – 70 mm ( 2 @.@ 4 – 2 @.@ 8 in ) , concave to somewhat funnel @-@ shaped , with a central depression . Its color is orange at the center to brownish @-@ orange towards the margin . The cap surface is somewhat sticky , and the texture is either smooth to slightly cracked . It has an indistinct layer of matted mycelial " hairs " . The margin lacks striations and grooves , and is curled inward slightly . The gills are slightly decurrent ( running slightly down the length of the stem ) , cream @-@ salmon in color , and crowded closely together . They are up to 3 mm ( 0 @.@ 12 in ) broad and are frequently branched . The gill edges are smooth , and the same color as the gill face . There are several tiers of lamellulae ( short gills that do not extend fully from the cap margin to the stem ) interspersed between the gills . The stem is 35 – 45 mm ( 1 @.@ 4 – 1 @.@ 8 in ) long by 18 – 21 mm ( 0 @.@ 71 – 0 @.@ 83 in ) thick , centrally attached to the stem , cylindrical , and tapers slightly near the base . It is pale ochraceous @-@ salmon , and slight longitudinal ribs can be seen with a magnifying glass . The flesh is spongy , pale yellow @-@ ochre in the cap , and cream @-@ yellow in the stem . The latex is cream @-@ colored to roughly the same color as the gills , and not abundant . 
