Between Platycarya and Houttuynia, which has more species within the genus?
Houttuynia Houttuynia is a genus of two species in the Saururaceae native to Southeast Asia. One species, "H. cordata", is widely cultivated as a culinary herb. The genus was originally described in 1783 by Carl Peter Thunberg when he formally described "H. cordata" as the only species. It remained a monotypic genus until 2001 when Zheng Yin Zhu and Shi Liang Zhang discovered and described a second species native to China, "H. emeiensis".
Variatus platy The variatus platy ("Xiphophorus variatus"), also known as variable platyfish or variegated platy, is a species of freshwater fish in family Poecilidae of order Cyprinodontiformes. A live-bearer, it is native to southern Tamaulipas and northern Veracruz states in northeastern Mexico. It is a popular fish in the aquarium trade due to its prolific breeding, as are hybrids with other members of its genus, most notably the southern platyfish.