Beautiful Petri dishes by meghan | Feb 19, 2018 | Mushroom Lab | 0 comments Working in the lab tonight with beautiful Petri dishes… I had to stop and take photos! These are all different oysters. They are King Oyster, Blue Oyster, and Pearl Oyster! Submit a Comment Cancel replyYour email address will not be published. Required fields are marked * Recipe Rating Recipe Rating Comment Name * Email * Website − = four This site uses Akismet to reduce spam. Learn how your comment data is processed.