The Orchidaceae of Mexico and Guatemala.
New York: Johnson Reprint, (1973. facsimile). Folio, 40 colour plates. Publisher's green cloth, limited to 1000 numbered copies, a fine copy. First published 1837-1842. More
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Orchids of Peru.
Chicago: Chicago Natural History Museum, 1958-1970. Octavo, text illustrations. Publisher's printed wrappers, with separately issued title page. Fieldiana: Botany, Volume 30, numbers one to four and first supplement. More
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