Proper noun
Morren (plural Morrens)
A surname from Dutch.
In 1836, botanist Charles François Antoine Morren was drinking coffee on a patio in Papantla (in Veracruz, Mexico) and noticed black bees flying around the vanilla flowers next to his table. Source: Internet
Morren immediately began experimenting with hand pollination. Source: Internet
Within hours, the flowers closed and several days later, Morren noticed vanilla pods beginning to form. Source: Internet