small yellow brown mushroom family distinguished members genus unusual spores unusual spores led species named type species abandoned genus recent studies shown genus exist species defining traits form group genus grows ground woodland favouring beech trees found europe north_america asia probably poisonous presence lead syndrome potentially lead death respiratory failure taxonomy naming described volume publication fungi species moved genus rejected considered synonym type species longer recognised genus specific epithet comes latin word meaning overlooked genus placed subgenus mycologist places species section mycologist considers includes shown addition large clade subgenus forms clade species similar small feature defined genus type species phylogenetic analysis later concluded spored species form group deemed inappropriate generic level considered useful lower level refer clade species closely related forms smaller closer clade different study found close relationship named clade containing description bell shaped later expanding cap centimetres diameter yellowish brown colour splits margin curves centre stem centimetres height millimetres thick white pale straw yellow stem meaning covered particles resembling meal stem distinct base moderately lacks ring flesh white yellowish stem gills initially whitish later clay brown toothed white edges meaning connect stem depth crowded closely microscopic features leaves clay brown spore print spores rectangular large number distinct angular size spores measure length width cheilocystidia relatively shaped cystidia hyaline pale yellow walls similar species species differentiated similar irregular spores similar differs presence species differentiated lack habitat distribution species found ground mixed deciduous coniferous woodland typically beech mushrooms grow groups late summer autumn commonly encountered species found europe asia north_america edibility species mild indistinct taste faint smell flour mycologist describes edibility suspect recommending avoided notes possible species poisonous species shown contain poisonous chemicals mycologist lists mushroom containing poisonous compound consumption lead number effects including excess problems array symptoms known acronym potential effects include drop blood pressure death respiratory failure
Inocybe praetervisa