 The free gills are white , as is the spore print . The oval spores measure 9 – 13 by 6 @.@ 5 – 9 μm ; they do not turn blue with the application of iodine . The stipe is white , 5 – 20 cm high ( 2 – 8 in ) by 1 – 2 cm ( 0 @.@ 4 – 0 @.@ 8 in ) wide , and has the slightly brittle , fibrous texture typical of many large mushrooms . At the base is a bulb that bears universal veil remnants in the form of two to four distinct rings or <unk> . Between the basal universal veil remnants and gills are remnants of the partial veil ( which covers the gills during development ) in the form of a white ring . It can be quite wide and flaccid with age . There is generally no associated smell other than a mild <unk> . 
