The Mariana mallard or Oustalet's duck is an extinct species of duck of the genus Anas that was endemic to the Mariana Islands. Its taxonomic status is debated, and it has variously been treated as a full species, a subspecies of the mallard or of the Pacific black duck, or sometimes as a subspecies of the Indian spot-billed duck.
The Guam flying fox, also known as the little Marianas fruit bat, was a small megabat from Guam in the Marianas Islands in Micronesia that was confirmed extinct due to hunting or habitat changes. It was first recorded in 1931 and was observed roosting with the larger and much more common Mariana fruit bat. The last specimen was a female found roosting at Tarague cliff in March 1967, but it escaped capture. An unconfirmed sighting took place sometime during the 1970s, and no other individuals have been sighted since then.
Cicuta maculata is a highly poisonous species of flowering plant in the carrot family known by several common names, including spotted water hemlock, spotted parsley, spotted cowbane, and the suicide root by the Iroquois. It is native to nearly all of North America, from northern Canada to southern Mexico.
The frosted flatwoods salamander is an endangered salamander species native to the Southeastern United States.
Amaranthus brownii was an annual herb in the family Amaranthaceae. The plant was found only on the small island of Nihoa in the Northwestern Hawaiian Islands, growing on rocky outcrops at altitudes of 120–215 m (394–705 ft). It was one of nine species of Amaranthus in the Hawaiian Islands, as well as the only endemic Hawaiian species of the genus. It is now considered extinct.
Pleurobema clava, the clubshell, club naiad or clubshell pearly mussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Cercocarpus traskiae, known by the common names Santa Catalina Island mountain-mahogany and Catalina mahogany, is a rare species of plant in the rose family.
Lygodium microphyllum is a climbing fern originating in tropical Africa, Southeast Asia, Melanesia and Australia. It is an invasive weed in Florida where it invades open forest and wetland areas. The type specimen was collected in the vicinity of Nabúa, on the island of Luzon in the Philippines by Luis Née.
Osmoxylon mariannense is a rare species of tree in the family Araliaceae. It is endemic to Rota, one of the Northern Mariana Islands. A 2002 survey found only eight mature trees remaining on the island. A resident of the commonwealth, the tree is federally listed as an endangered species of the United States.
Galium californicum is a species of flowering plant in the coffee family known by the common name California bedstraw.
Arctostaphylos myrtifolia is a rare species of manzanita known by the common name Ione manzanita. It is endemic to the Sierra Nevada foothills of California. It grows in the chaparral and woodland plant community on a distinctive acidic soil series, an oxisol of the Eocene-era Ione Formation, in western Amador and northern Calaveras counties. There are only eleven occurrences, of which three have not been recorded since 1976. This is a federally listed threatened species.
Bulbophyllum guamense is a species of orchid in the genus Bulbophyllum. It is native to the islands of Guam and Rota in the Mariana Islands.
Dicerandra frutescens is a rare species of flowering plant in the mint family known by the common names scrub mint and scrub balm. It is endemic to Highlands County, Florida, where it is known only from the Lake Wales Ridge. Its habitat is quickly being lost as it is converted to residential and agricultural use. It was federally listed as an endangered species of the United States in 1985.
Phyllostegia glabra is a species of flowering plant in the mint family known by the common name smooth phyllostegia. It is endemic to Hawaii.
Dubautia syndetica, the Wahiawa dubautia, is a plant species endemic to the island of Kauai in the state of Hawaii. It is found only in the upper portions of the Wahiawa drainage basin at elevations of 680–950 m.
Eugenia palumbis is a shrub with edible fruits in the family Myrtaceae. It is endemic to the Mariana Islands, including Guam and the Commonwealth of the Northern Mariana Islands.
Asarum rosei is a species of flowering plant endemic to North Carolina in the southeastern United States. It was first formally described in 2017 by Brandon T. Sinn in Phytotaxa. The species is named for Mark Rose, "a respected plant collector, horticulturalist, orchid breeder, and naturalist who discovered and documented the species".
Syzygium thompsonii is an endemic tree of the Mariana Islands of Guam, Rota, and Saipan with a striking appearance due to its abundance of white flowers and edible fruit that grow directly from the trunk. It is related to the Malay apple but bears smaller tart fruit.
Bulbophyllum raulersoniae is a species of orchid in the section Codonosiphon. It is endemic to the islands of Guam and Rota in the Marianas Archipelago. The species was named posthumously after Dr. Lynn Raulerson, professor of biology at the University of Guam, who had discovered the species in 1986. After going unnamed for 36 years, the species was first described and named in the OrchideenJournal in 2022 by Banjamin Deloso, Charles Paulino, and Jim Cootes.
