Fagus grandifolia this is not considered distinct in the Flora of North America. The Mexican beech ("Fagus mexicana"), native to the mountains of central Mexico, is closely related, and is sometimes treated as a subspecies of American beech, but more often as a distinct species. The only "Fagus" species found in the Western Hemisphere (assuming "F. mexicana" is treated as a subspecies), "F. grandifolia" is believed to have spanned the width of the North American continent all the way to the Pacific coast before the last ice age. It is a deciduous tree growing to tall, with smooth, silver-gray bark. The leaves
Hylorina sylvatica Larvae are aquatic and found in pools and ponds. While "Hylorina sylvatica" is uncommon and threatened by habitat loss (due to, e.g., logging), IUCN classifies it as of "Least Concern" in view of its wide distribution, presumed large population, and slow rate of decline. Hylorina sylvatica Hylorina sylvatica (also known as the Emerald forest frog, or in Spanish, sapo arboreo) is a species of frog in the family Batrachylidae. It is monotypic within the genus Hylorina. It is found in Argentina and Chile. This species is endemic to the austral "Nothofagus" forests of Chile and Argentina with a narrow distribution