Deamia testudo | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Cactaceae |
Subfamily: | Cactoideae |
Genus: | Deamia |
Species: | D. testudo |
Binomial name | |
Deamia testudo (Karw. ex Zucc.) Britton & Rose [1] | |
Synonyms [1] | |
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Deamia testudo is a species of flowering plant in the family Cactaceae, native from southern Mexico through Central America to Nicaragua. [1] It was first described in 1838. [2] It is a climber or clamberer, with long stems and large white flowers.
Deamia testudo clambers over or hangs from rocks, or climbs or hangs from trees. It produces roots along its stems by which it clings tightly to its support. The stems are made up of segments up to 25 cm (10 in) long and 8 cm (3 in) in diameter. The stems usually have three ribs, although there may be up to eight. The ribs are thin and wing-like, about 1–3 cm (0.4–1.2 in) high. The areoles have up to 10 or more brownish spines, each 1–2 cm (0.4–0.8 in) long. The flowers have a long thin base and widely spread white tepals. Altogether the flower is about 25 cm (10 in) long and 15 cm (6 in) across. [3] [4]
The species was first described by Joseph Gerhard Zuccarini in 1838, as Cereus testudo. Zuccarini ascribed the scientific name to Wilhelm Friedrich Karwinsky. [5] In 1920, Nathaniel Lord Britton and Joseph Nelson Rose considered the species sufficiently distinctive to transfer it to their newly created genus Deamia , where it was the only species. [2] In 1965, Franz Buxbaum transferred it to the genus Selenicereus, based on its flowers, a view supported by Wilhelm Barthlott and David Hunt in 1993. In 2003, Ralf Bauer transferred it to the genus Strophocactus. Meanwhile, in 2002, Alexander Doweld had revived Deamia for both this species and another formerly placed in Selenicereus ( Deamia chontalensis ). [6] Molecular phylogenetic studies in 2017 and in 2018 confirmed the monophyly of the genus Deamia, [6] [7] of which D. testudo is the type species.
Deamia testudo is native from southern Mexico (southeastern, southwestern and Veracruz on the Gulf), through Guatemala, Belize and Honduras to Nicaragua. [1]
Acanthocereus is a genus of cacti. Its species take the form of shrubs with arching or climbing stems up to several meters in height. The generic name is derived from the Greek word άκανθα (acantha), meaning spine, and the Latin word cereus, meaning candle. The genus is native to the mostly tropical Americas from Texas and the southern tip of Florida to the northern part of South America, including islands of the Caribbean.
Jasminocereus is a genus of cacti with only one species, Jasminocereus thouarsii, endemic to the Galápagos Islands, territorially a part of Ecuador. In English it is often called the candelabra cactus. At maturity it has a branched, treelike habit, and may be up to 7 m (23 ft) tall. The stems are made up of individual sections with constrictions between them. Its creamy white to greenish flowers open at night and are followed by greenish to reddish fruits.
Hylocereus is a former genus of epiphytic cacti, often referred to as night-blooming cactus. Several species previously placed in the genus have large edible fruits, which are known as pitayas, pitahayas or dragonfruits. In 2017, a molecular phylogenetic study in 2017 confirmed an earlier finding that the genus Hylocereus was nested within Selenicereus, so all the species of Hylocereus were transferred to Selenicereus.
Selenicereus, sometimes known as moonlight cactus, is a genus of epiphytic, lithophytic, and terrestrial cacti, found in Mexico, Central America, the Caribbean and northern South America. The term night-blooming cereus is also sometimes used, but this is also used for many night-blooming cacti, including Epiphyllum and Peniocereus. In 2017, the genus Hylocereus was brought into synonymy with Selenicereus. A number of species of Selenicereus produce fruit that is eaten. The fruit, known as pitaya or pitahaya in Spanish or as dragon fruit, may be collected from the wild or the plants may be cultivated.
Weberocereus is genus of cacti. It produces a green and white flower and is found mainly in Costa Rica and Nicaragua.
Deamia is a genus of cacti. Its species are native from south Mexico through Central America to Nicaragua. Its species have been placed in Selenicereus and Strophocactus.
Strophocactus is a genus of cacti in the subfamily Cactoideae. Its status and circumscription remain somewhat uncertain, with the genus containing one to three species. Molecular phylogenetic data suggest that it consists of three species, including two formerly comprising the genus Pseudoacanthocereus. With this circumscription, the species have different growth habits, but share similarities in their flowers, which are white and open at night.
The lava cactus is a species of cactus, Brachycereus nesioticus, the sole species of the genus Brachycereus. The plant is a colonizer of lava fields – hence its common name – where it forms spiny clumps up to 60 cm (24 in) tall. Its solitary white or yellowish white flowers open in the daytime. It is endemic to the Galápagos Islands.
Selenicereus undatus, the white-fleshed pitahaya, is a species of Cactaceae and is the most cultivated species in the genus. It is used both as an ornamental vine and as a fruit crop - the pitahaya or dragon fruit. The native origin of the species has never been resolved.
The Cactoideae are the largest subfamily of the cactus family, Cactaceae. Around 80% of cactus species belong to this subfamily. As of August 2018, the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010. Various revisions have been published since, e.g. to the tribe Hylocereeae and the tribe Echinocereeae. Classifications remained uncertain as of March 2019.
Selenicereus costaricensis or Hylocereus costaricensis, known as the Costa Rican pitahaya or Costa Rica nightblooming cactus, is a cactus species native to Costa Rica and Nicaragua. The species is grown commercially for its fruit, called pitaya or pitahaya, but is also an impressive ornamental vine with huge flowers. Its scientific name is problematic for several reasons. The species may not be distinct from Selenicereus monacanthus.
Selenicereus megalanthus, synonym Hylocereus megalanthus, is a cactus species in the genus Selenicereus that is native to northern South America, where it is known, along with its fruit, by the name of pitahaya. The species is grown commercially for its yellow fruit, but is also an impressive ornamental climbing vine with perhaps the largest flowers of all cacti.
Strophocactus brasiliensis, synonym Pseudoacanthocereus brasiliensis, is a species of plant in the family Cactaceae. It is endemic to Brazil. Its natural habitats are subtropical or tropical dry forests and hot deserts. It is threatened by habitat loss.
Selenicereus grandiflorus is a cactus species originating from the Antilles, Mexico and Central America. The species is commonly referred to as queen of the night, night-blooming cereus, large-flowered cactus, sweet-scented cactus or vanilla cactus. The true species is extremely rare in cultivation. Most of the plants under this name belong to other species or hybrids. It is often confused with the genus Epiphyllum.
The Hylocereeae are a tribe of cacti. Most are found in the tropical forests of Central and northern South America, and are climbers or epiphytes, unlike most cacti. The tribe includes between six and eight genera in different circumscriptions. The plants known as "epiphyllum hybrids" or "epiphyllums", widely grown for their flowers, are hybrids of species within this tribe, particularly Disocactus, Pseudorhipsalis and Selenicereus, less often Epiphyllum, in spite of the common name.
Echinopsis candicans is a species of cactus from northern and western Argentina. It has large fragrant white flowers that open at night.
Strophocactus wittii, synonym Selenicereus wittii, known as the Amazon moonflower, is a species of plant in the genus Strophocactus in the cactus family (Cactaceae), and is one of several species commonly called "moonflowers". It was first described in 1900 and is one of three species of cactus found in the central Amazon basin.
Kimnachia is a monotypic genus of cacti. Its only species is Kimnachia ramulosa, synonym Pseudorhipsalis ramulosa, which is native from southern Mexico to northern South America and also found in Jamaica.
Deamia chontalensis is a species of flowering plant in the family Cactaceae, native to southwestern Mexico and Guatemala. It has sprawling or pendent branched stems and fragrant white flowers.
Deamia montalvoae is a species of flowering plant in the family Cactaceae, native to southeastern Mexico, Guatemala and El Salvador. It was first described in 2018. It climbs or hangs from trees or rocks, and has large funnel-shaped flowers, mostly white, and pale red fruit, covered with bristles and hairs.