Fungi play vital roles in the biosphere. They are essential to the recycling of nutrients in all terrestrial habitats because they are the dominant decomposers of the complex components of plant debris, such as cellulose and lignin.
A brochure is an informative paper document (often also used for advertising), that can be folded into a template, pamphlet or leaflet. Brochures are promotional documents, primarily used to introduce a company, organization, products or services and inform prospective customers or members of the public of the benefits.
I'm by no means a marketing expert but this is what comes to mind for me when I think of those. Flyer - a 1 page (8x11) advertisement for a sale, event, product, etc... Brochure - a tri-fold document that contains information about a company, product, program, etc... Leaflet - smaller than a page (8x11) used as a handout to advertise or promote something.