Deamia montalvoae

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Deamia montalvoae
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Deamia
Species:
D. montalvoae
Binomial name
Deamia montalvoae
Cerén, J.Menjívar & S.Arias [1]

Deamia montalvoae is a species of flowering plant in the family Cactaceae, native to southeastern Mexico, Guatemala and El Salvador. [1] It was first described in 2018. [2] [3] 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.

Contents

Description

Deamia montalvoae either climbs or is partially supported by rocks or trees, with roots along its length which do not strongly cling to its supports. It branches freely and has numerous stems, up to 1.5 m (5 ft) long and 1–2 cm (0.4–0.8 in) across. The stems typically have 7–8 ribs, each 1–1.5 cm (0.4–0.6 in) high. The areoles have 7–13 spines, 0.4–2.6 cm (0.2–1.0 in) long, which are initially yellowish with a reddish apex and later darken. In addition to spines, the areoles have many bristles. The solitary flowers are funnel-shaped, 23–30 cm (9–12 in) long in total. The tepals are up to 10 cm (3.9 in) long, the outer ones being yellowish-brown, the inner ones white. The style is about 22 cm (8.7 in) long with its stigma ending either at the same place as the anthers of the stamens or up to 1 cm (0.4 in) beyond. The pale red fruits are up to 6 by 4.5 cm (2.4 by 1.8 in) and are fully covered with bristles and hairs. The white pulp of the fruit is fragrant and sweet. [3]

Taxonomy

Between 2008 and 2015, plants recorded as Deamia chontalensis , Selenicereus grandiflorus and Deamia aff. chontalensis were discovered in Guatemala, Mexico and El Salvador respectively. All three populations shared similar characteristics, but seemed to differ from known species in some respects, such as having much longer flowers than expected for D. chontalensis. In 2018, a study was published which used both molecular phylogenetic and morphological approaches to show that the plants were a new species of Deamia , which the authors of the study named Deamia montalvoae. The specific epithet honours Edy Albertina Montalvo, a pioneering El Salvadorian woman botanist. [3]

Distribution and habitat

Deamia montalvoae occurs in three known and isolated populations: Chiapas in the Sierra Madre del Sur in Mexico, Huehuetenango in Guatemala, and Santa Ana in El Salvador. It inhabits tropical deciduous forests and cloud forests, and is particularly found on cliffs and around rivers at elevations of 600–1,200 m (2,000–3,900 ft). It climbs on various kinds of tree, including Sideroxylon tepicense and Ficus species. [3]

Conservation

Although the species had not been assessed by the IUCN as of March 2021, its occurrence in three isolated populations in an area smaller than 5,000 km2 (1,900 sq mi) led the original describers of the species to describe it as "endangered". [3]

Related Research Articles

Areole Bumps on cacti out of which grow clusters of spines

In botany, areoles are small light- to dark-colored bumps on cacti out of which grow clusters of spines. Areoles are important diagnostic features of cacti, and identify them as a family distinct from other succulent plants. The spines are not easily detachable, but on certain cacti, members of the subfamily Opuntioideae, smaller, detachable bristles, glochids, also grow out of the areoles and afford additional protection.

<i>Acanthocereus</i> genus of plant in the family Cactaceae

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.

<i>Mammillaria</i> Genus of cactus mostly from Mexico

Mammillaria is one of the largest genera in the cactus family (Cactaceae), with currently 200 known species and varieties recognized. Most of the mammillarias are native to Mexico, but some come from the southwest United States, the Caribbean, Colombia, Venezuela, Guatemala and Honduras. The common name "pincushion cactus" refers to this and the closely related genus Escobaria.

<i>Disocactus</i> Genus of cacti

Disocactus is a genus of epiphytic cacti in the tribe Hylocereeae found in Central America, the Caribbean and northern South America. It should not be confused with Discocactus, which is a different genus.

<i>Selenicereus</i> Genus of cacti

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.

<i>Deamia</i> Genus of flowering plants

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.

<i>Strophocactus</i> Genus of cacti

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.

<i>Selenicereus hamatus</i> Species of cactus

Selenicereus hamatus is a species of Cactaceae and produces one of the largest flowers in the family. It is a cultivated ornamental vine. The species is native to Mexico.

<i>Aporocactus flagelliformis</i> Species of cactus

Aporocactus flagelliformis, the rattail cactus, is a species of flowering plant in the cactus family Cactaceae, and is the most cultivated species in the genus Aporocactus. Due to its ease of cultivation and attractive floral displays, it is often grown as an ornamental potted plant.

<i>Disocactus anguliger</i> Species of cactus

Disocactus anguliger, commonly known as the fishbone cactus or zig zag cactus, is a cactus species native to Mexico. The species is commonly grown as an ornamental for its fragrant flowers in the fall.

<i>Selenicereus costaricensis</i> Species of plant

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.

<i>Selenicereus megalanthus</i> Species of plant

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.

<i>Strophocactus brasiliensis</i> Species of cactus

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.

<i>Selenicereus grandiflorus</i> Species of nocturnal cactus native to Central America and the Caribbean

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.

<i>Thelocactus nidulans</i> Species of cactus

Thelocactus nidulans is a cactus in the genus Thelocactus of the family Cactaceae.

<i>Strophocactus wittii</i> Species of cactus

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.

Strophocactus sicariguensis, synonym Pseudoacanthocereus sicariguensis, is a species of plant in the family Cactaceae. It is native to Colombia and Venezuela. It has often sprawling thin stems and white funnel-shaped flowers that open at night.

<i>Kimnachia</i> Genus of cacti

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.

<i>Deamia testudo</i> Species of flowering plant

Deamia testudo is a species of flowering plant in the family Cactaceae, native from southern Mexico through Central America to Nicaragua. It was first described in 1838. It is a climber or clamberer, with long stems and large white flowers.

References

  1. 1 2 "Deamia montalvoae Cerén, J.Menjívar & S.Arias", Plants of the World Online , Royal Botanic Gardens, Kew , retrieved 2021-03-13
  2. "Deamia montalvoae Cerén, J.Menjívar & S.Arias", The International Plant Names Index , retrieved 2021-03-13
  3. 1 2 3 4 5 Cerén, G.; Cruz, M.S.; Menjívar, J. & Arias, S. (2018), "A new species of Deamia (Cactaceae) from the Mesoamerican region", Phytotaxa, 369 (4): 251–259, doi:10.11646/phytotaxa.369.4.2