Ilex cassine is a holly native to the southeastern coast of North America, in the United States from Virginia to southeast Texas, in Mexico in Veracruz, and in the Caribbean on the Bahamas, Cuba, and Puerto Rico. It is commonly known as dahoon holly or cassena, the latter derived from the Timucua name for I. vomitoria.
Cerro de Punta or just Cerro Punta is the highest peak in Puerto Rico, rising to 1,338 meters (4,390 ft) above sea level. The mountain is part of the Cordillera Central and is located in the municipality of Ponce.
The golden coquí is a rare species of frog endemic to Puerto Rico.
The Monito gecko is a lizard, a species of gecko endemic to the island of Monito, in the archipelago of Puerto Rico.
The Puerto Rican crested toad, or simply Puerto Rican toad, is a species of toad found only in Puerto Rico and the Virgin Islands. It is the only species of toad native to Puerto Rico and the Virgin Islands. The species formerly occurred in Virgin Gorda and along the southern and northern karst in Puerto Rico. It is listed as a threatened by the US Fish and Wildlife Service due to habitat loss and introduced species. At one period of time it was believed to be extinct until it was rediscovered in 1966. The IUCN has the species listed as endangered.
The Puerto Rican flycatcher is a tyrant flycatcher endemic to the Puerto Rican archipelago and one of the 22 species belonging to the genus Myiarchus of the family Tyrannidae.
Hedrick's coqui, the treehole coqui, or coqui de Hedrick is a species of frog in the family Eleutherodactylidae endemic to Puerto Rico. Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical moist montane forest.
Antirhea sintenisii is a species of plant in the family Rubiaceae. It is endemic to Puerto Rico.
Brunfelsia portoricensis, the Puerto Rico raintree, is a species of flowering plant in the family Solanaceae. It is endemic to Puerto Rico, where it occurs in El Yunque National Forest.
Callicarpa ampla, also called the capa rose, is a species of plant in the family Lamiaceae. It is found in Puerto Rico in the Caribbean region. It is threatened by habitat loss and is a critically endangered plant species.
Eugenia woodburyana is a species of plant in the family Myrtaceae. It is endemic to Puerto Rico. It is a federally listed endangered species of the United States. It is threatened by habitat loss.
Ilex cookii is a species of plant in the family Aquifoliaceae. It is endemic to Puerto Rico. It is threatened by habitat loss. It is a federally listed endangered species of the United States.
Ilex ovalis is a species of flowing plant in the holly family Aquifoliaceae. It is native to Ecuador and Peru.
Myrcia sintenisiana is a species of flowering plant in the family Myrtaceae. It is endemic to Puerto Rico, where it is limited to the Luquillo Mountains. It occurs in El Yunque National Forest in dwarf forest habitat on wet mountain ridges. Its common name is beruquillo.
Psidium sintenisii is a species of flowering plant in the myrtle family, Myrtaceae. It is endemic to Puerto Rico, where it is known from three or four small subpopulations, mainly within El Yunque National Forest. It grows in wet mountain forest habitat. Its common names are Sintenis' guava and hoja menuda.
Schefflera gleasonii, the yuquilla, is a species of plant in the family Araliaceae. It is endemic to Puerto Rico. It is found in ultramafic soils in the central Punta range of Puerto Rico. It is a montane forest tree.
Paul Ernst Emil Sintenis was a German botanist, pharmacist and important plant collector.
Ilex urbaniana, known commonly as the Urban's holly, is a species of tree or shrub in the Aquifoliaceae or holly family of flowering plants. It is found on Hispaniola, Puerto Rico, and the U.S. and British Virgin Islands.
Cornutia obovata is a rare species of tree in the mint family, and formerly considered a member of the verbena family. It is endemic to forested slopes in Puerto Rico, where its common names are capá jigüerilla, nigua, and palo de nigua. When it was added to the endangered species list of the United States in 1988 there were only seven individuals known to remain in the wild. By 1998 there were eight plants known. This is considered one population divided amongst a few locations in the mountain forests of the island.
