Inocybe praetervisa leaves a clay @-@ brown spore print , while the spores themselves are rectangular with a large number of " distinct , angular knobs " . In size , the spores measure between 10 and 12 micrometres ( 0 @.@ 00039 and 0 @.@ 00047 in ) in length by between 7 and 9 micrometres ( 0 @.@ 00028 and 0 @.@ 00035 in ) in width . Inocybe praetervisa has both pleuro- and cheilocystidia which are relatively spindle @-@ shaped with apical encrustation . The cystidia have hyaline or pale yellow walls .