A "Flora" is a book listing all the plants of a given area. Since the term was most popular in an era when fungi were considered plants, it also includes fungi. Once botanists started to realize just how many "plants" there are, they started issuing more restricted floras, covering, say, all the mosses of Ireland. Thus, the scope of a flora can range from Sir Joseph Dalton Hooker's monumental attempt to list all the plants in the world, in his Genara Plantarum, to MacBride's The Myxomycetes of Eastern Iowa.
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