The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature IUCN and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)
Rhipsalis baccifera, commonly known as the mistletoe cactus, is an epiphytic cactus which originates from Central and South America, the Caribbean, and Florida. It is also found throughout the tropics of Africa and into Sri Lanka where it is known in Sinhala as nawahandi (නවහන්දි). This is the only cactus species naturally occurring outside the Americas. One hypothesis is that it was introduced to the Old World by migratory birds, long enough ago for the Old World populations to be regarded as distinct subspecies. An alternative hypothesis holds that the species initially crossed the Atlantic Ocean on European ships trading between South America and Africa, after which birds may have spread it more widely.
An IUCN Red List Critically Endangered species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be Critically Endangered.
Notiosorex cockrumi, also called Cockrum's gray shrew or Cockrum's desert shrew, is a tiny species of shrews named in 2003. This red-toothed shrew, which is as light as a penny, is the first new mammal species from Arizona since 1977. Its range extends from Arizona to central Sonora, Mexico.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
Eugenia floccosa is a species of plant in the family Myrtaceae. It is endemic to India. It is threatened by habitat loss.
Miconia floccosa is a species of plant in the family Melastomataceae. It is endemic to Peru.
Rhipsalis cereoides is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forests and rocky areas. It is threatened by habitat loss.
Rhipsalis crispata is a species of terrestrial plant in the family Cactaceae.
Rhipsalis elliptica is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitat is subtropical or tropical moist lowland forest. It is threatened by habitat loss.
Rhipsalis hoelleri is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Rhipsalis oblonga is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Rhipsalis pacheco-leonis is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forests and rocky areas. It is threatened by habitat loss. It needs water and sunlight.
Rhipsalis paradoxa is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Rhipsalis pilocarpa, the hairy-fruited wickerware cactus, is a species of flowering plant in the cactus family that is endemic to Brazil. Scarce in the wild, it is known only in a small number of isolated locations. Its status is listed as “vulnerable” by the IUCN Red List. However, it is cultivated as an ornamental houseplant and as such has gained the Royal Horticultural Society’s Award of Garden Merit.
Rhipsalis russellii is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forests and rocky areas. It is threatened by habitat loss.
Rhipsalis sulcata is a species of plant in the genus Rhipsalis and family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical moist lowland forests and rocky areas. It is threatened by habitat loss.
Rhipsalis mesembryanthemoides is a cactus in the genus Rhipsalis of the family Cactaceae. The first description was in 1821 by Adrian Hardy Haworth. The shoots are reminiscent of the plants of the genus Mesembryanthemum, hence the epithet mesembryanthemoides.
Hatiora salicornioides, the bottle cactus, dancing-bones, drunkard's-dream, or spice cactus, is a species of flowering plant in the cactus family. A member of the tribe Rhipsalideae, it often grows as an epiphyte, natively in eastern Brazil and ornamentally elsewhere.
Hatiora herminiae is a species of flowering plant in the tribe Rhipsalideae, family Cactaceae. It grows as an epiphyte in cloud forests in Southeast Brazil.
