Syneilesis and Nymphoides are both what?
Syneilesis Syneilesis is a genus of East Asian plants in the groundsel tribe within the Asteraceae.
Thalia (nymph) In Greek mythology, Thalia (Greek: Θάλεια "Tháleia" or Θάλια "Thália", "the Joyous, the Flourishing", from θάλλειν / thállein, "to flourish, to be green") is a nymph, the child of Hephaestus. She is also given as an anthropomorphic secondary deity of plant life and shoots, possibly as the culmination of the transmission of knowledge on volcanic ash's use as a fertiliser, characteristic of ancient viticulture in volcanic soils such as those of the island of Santorini.