 When viewed in mass , as in a spore print , the spores appear cream to yellow colored . <unk> with a light microscope , the spores are translucent ( hyaline ) , elliptical to nearly spherical in shape , with amyloid warts , and have dimensions of 7 – 9 by 5 @.@ 5 – 7 @.@ 5 µm . <unk> electron microscopy reveals <unk> on the spore surface . The hymenium is the spore @-@ producing tissue layer of the fruit body , and consists of hyphae that extend into the gills and terminate as end cells . Various cell types can be observed in the hymenium , and the cells have microscopic characteristics that may be used to help identify or distinguish species in cases where the <unk> characters may be ambiguous . The spore @-@ bearing cells , the basidia , are four @-@ spored and measure 37 – 45 µm long by 8 – 10 µm wide at the <unk> point . <unk> are terminal cells of hyphae in the hymenium which do not produce spores , and function in aiding spore dispersal , and maintaining favorable humidity around developing spores . The <unk> are cystidia that are found on the face of a gill ; they are 40 – 56 by 6 @.@ 4 – 8 µm , roughly spindle @-@ shaped , and have a <unk> apex . The cheilocystidia — located on the edge of a gill — are abundant , and are 40 @.@ 0 – 45 @.@ 6 by 5 @.@ 6 – 7 @.@ 2 µm . 
