Between the Coccothrinax genus of palms and the Spigelia genus of flowering plants, which has more species in its genus?
Coccothrinax:  There are more than 50 species described in the genus, plus many synonyms and sub-species. Spigelia: Spigelia is a genus of flowering plants in the family Loganiaceae. Spigelia:  It contains around 60 species, distributed over the warmer parts of the Americas, from the latitude of Buenos Aires to the Southern United States. Spigelia:  It was named after Adriaan van den Spiegel (Adrianus Spigelius) by Carl Linnaeus in his 1753 "Species Plantarum"; the type species is "Spigelia anthelmia".
Spigelia