This is a beautiful souvenir sheet, issued by Comoros Islands in 2008, featuring famous mycologists and mushrooms. Included on the sheet are Finnish mycologist Petter Adolf Karsten, the Sooty Lactarius, Leaden Milk-Cap, Fire-Milk Lactarius, Leccinum Aurantacum, and the Fairy Ring Mushroom. Also displayed are the butterflies Gaudy Commodore, Privet Hawkmoth, and the Lime Hawk-moth. The sheet is Post Office fresh, mint never hinged, and F/VF.