Smithsonian Institution · Washington : Smithsonian Institution · leaf 148
136 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 146 … Fic. 18—Major habitat zones in Latin America (after Platt, 1942. fig. 491). A broken line surrounds the portion of Mesoamerica where the earliest evidence of plant domestication has been found, and that part of Colombia pre- senting a similar combination of habitat zones.
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