 The spores are 7 – 9 by 4 – 5 μm , ellipsoid , smooth , amyloid ( reaction very weak in some collections ) . The basidia ( spore @-@ bearing cells ) are four @-@ spored , or occasionally a combination of two- and four @-@ spored . The four @-@ spored forms have clamp connections that are absent in the two @-@ spored forms . The pleurocystidia ( cystidia found on the face of the gills ) are not differentiated . The cheilocystidia ( cystidia found on the edges of the gills ) are embedded in the hymenium and inconspicuous , measuring 22 – 36 by 5 – 11 μm . They are roughly filiform ( like thin filaments ) , with numerous contorted branches or protuberances , and club @-@ shaped with finger @-@ like prolongations . The flesh of the gills is homogenous , and turns vinaceous @-@ brown when stained in iodine . The flesh of the cap has a well @-@ differentiated pellicle , with a differentiated but not very well @-@ developed hypoderm , and hyphae that are 10 – 20 μm wide . 
