dichogamy
noun
di·chog·a·my dī-ˈkä-gə-mē 
plural dichogamies
: the production of male and female reproductive elements at different times by a hermaphroditic organism in order to ensure cross-fertilization
dichogamous
dī-ˈkä-gə-məs
adjective 
Word History
Etymology
borrowed from New Latin dichogamia & German Dichogamie, from dicho- dicho- + -gamia, -gamie -gamy
Note: Term introduced in both German and Latin by the German naturalist Christian Konrad Sprengel (1750-1816) in Das entdeckte Geheimnis der Natur im Bau und in der Befruchtung der Blumen (Berlin, 1793), p. 17/18.
First Known Use
1862, in the meaning defined above