Between the Coccothrinax genus of palms and the Spigelia genus of flowering plants, which has more species in its genus?
Coccothrinax Coccothrinax is a genus of palms in the Arecaceae family. There are more than 50 species described in the genus, plus many synonyms and sub-species. A new species ("Coccothrinax torrida") has been described as recently as 2006. Many of the "Coccothrinax" have "silver" or "thatch", or both, in their English common names. In Spanish-speaking countries, "guano" is a common name applied to the "Coccothrinax" species. The species are native throughout the Caribbean, the Bahamas, extreme southern Florida and southeastern Mexico, but most of the species are known only from Cuba.
Zygophyllum Zygophyllum is the type genus of the flowering plant family Zygophyllaceae. The generic name is derived from the Greek words ζυγόν ("zygon"), meaning "yoke," and φυλλον ("phyllon"), meaning "leaf." It refers to the leaves, each of which have two leaflets. The more than 50 species the genus contains are distributed in arid and semi-arid regions of Africa, the Mediterranean Basin, central Asia and Australia.