The single mushroom is a Pleurotus citrinopileatus, the yellow oyster mushroom (tamogitake in Japanese), and is an edible gilled fungus. Native to eastern Russia, northern China, and Japan, the golden oyster mushroom is very closely related to P. cornucopiae of Europe, with some authors considering them to be at the rank of subspecies.The other mushrooms are White Clamshell Mushrooms, also known as Hon- or Buna-Shimeji, and distinguished by their mild shellfish flavor. Their quarter-size caps wi