Abbe Cavanilles published “Icones et Descriptiones Plantarum” in which he dedicated the Genus Dahlia, to Andre Dahl, a Swedish botanist and named the multi ray plant that had been raised from the seed that Cervantes had sent, as Dahlia pinnata.
Either in 1789 or 1790 Martin de Sessé y Lacasta’s colleague Vincente Cervantes, (Later Director of the Mexican Botanical Gardens) sent Dahlia seed to Madrid.
Nicholas Joseph Thierry de Menonville, see dahlias growing in Guaxaca Oaxaca. Martin de Sessé y Lacasta (Physician) & Jose Mariano Mociño set out to collect plants for the Mexico’s Botanical Garden.
Friar Bernardino de sahagún arrives in Mexico and would later write the first western account of the Dahlia (Acocoxochitl).
Earliest drawing of Dahlia used in symbolic reference to the Chief – proposed by Richard K.Cook Dahlias used as headbands, mainly by women of Mixtec culture as part of matrimony and possibly Mextec (Aztec Culture) as well. Ref: Richard K.Cook