Canada Post has unveiled its new stamp collection Wednesday featuring fungi and lichens found in the country. The Crown corporation says it made 120,000 booklets of 10 permanent stamps and 5,000 Fungi Official First Day Cover souvenir envelopes, highlighting five species of fungi. They are sold in a booklet of 10 permanent domestic rate stamps for $12.40 and the Fungi Official First Day Cover for $7.20. Canada Post says on its online store that the collection “celebrates the beauty, diversity and ecological importance of fungi” through a style resembling botanical illustrations. Jocelyne Saulnier designed the stamps and Emily S. Damstra illustrated them. They’re available at canadapost.ca and certain postal outlets across the country. The stamps show illustrations of the following five species of fungi found in Canada: Fungi play important roles in the Canadian ecosystem, including allowing plants to survive and grow, according to Canada Post’s press release Wednesday. Fungi also break down dead plants and animals, which returns nutrients to the soil. Fungi have other key functions, including some that can store carbon and decompose pollutants such as plastics and synthetic chemicals. Indigenous People traditionally used fungi for medicine, pigments or food.