Volume 18 deals with the fern family Polypodiaceae, subfamily Thelypteridoideae. In Ecuador this subfamily is only represented by the genus Thelypteris. Seventeen of 100 species are endemic of Ecuador, with a further 23 occurring on either the border with Colombia or Peru.
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I don't know how you got a book printed 26 years ago in the conditions that I received it (like new) but you do it! ABSOLUTELY AWESOME!
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