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".
Platismatia Platismatia is genus of medium to large foliose lichens with rather crinkled lobes. The genus is widespread and contains 10 species. They resemble many other genera of foliose lichens in the family Parmeliaceae, particularly "Parmotrema", "Cetrelia", and "Asahinea". Most species are found in forests on the trunks and branches of conifer trees, although some species grow on rocks.