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Most species of the genus Leucoagaricus have been described from temperate regions in North America and Europe,but little is known about the genus from tropical areas.In this report we describe two new species of Leucoagaricus,viz.La.flavovirens and La.atroazureus,from tropical China.The two species are characterized by their blue-green or dark blue coloration where bruised and unique phylogenetic placement.Two new combinations,viz.La.viriditinctus and La.caerulescens,are proposed.The neotype of La.viridiflavus from India was found to differ from La.flavovirens based on morphology and ITS sequence comparison.A monophyletic group of four bluing species from the old world tropics is recovered but with poor measures of branch support.