Question: Between the Coccothrinax genus of palms and the Spigelia genus of flowering plants, which has more species in its genus?
Sentence (from "Austrobaileyales"): The order includes just three families of flowering plants, the Austrobaileyaceae, a monotypic family containing the sole genus, "Austrobaileya scandens", a woody liana, the Schisandraceae, a family of trees, shrubs, or lianas containing essential oils, and the Trimeniaceae, essential oil-bearing trees and lianas.
Relevant evidence: No