Biology:Melocactus

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Short description: Genus of cacti

Melocactus
Melocactus acipinosus 1.jpg
Melocactus bahiensis
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Subtribe: Cereinae
Genus: Melocactus
Link & Otto, nom. cons.[1]
Type species
Melocactus communis (now Melocactus intortus)
Species

See text.

Melocactus (melon cactus), also known as the Turk's cap cactus, or Pope's head cactus, is a genus of cactus with about 30–40 species. They are native to the Caribbean, western Mexico through Central America to northern South America, with some species along the Andes down to southern Peru, and a concentration of species in northeastern Brazil .[2]

The first species was named by Carl Linnaeus in 1753, as Cactus melocactus. When the genus was separated from Cactus, the pre-Linnaean name Melocactus was used. Acting on the principle of priority, in 1922 Nathaniel Britton and Joseph Rose resurrected Linnaeus' Cactus. However, the 1905 Vienna botanical congress had already rejected the name Cactus, so this name was not available, and Melocactus Link & Otto is the correct genus name.[2]

Melocactus plant in fruit.
A Melocactus plant in fruit.

Mature plants are easily recognizable by their cephalium, a wool- and bristle-coated structure at the apex of the plant, containing a mass of areoles from which the small flowers grow.[2] The red, wool-coated cephalium, said to resemble the fez worn by Turkish men during the late Ottoman Empire, gives the plant one of its common names, Turk's cap cactus. It gives its name to the Turks Islands, part of the Turks and Caicos Islands.[3][4]

The fruits of Melocactus are pink and resemble the shape of pepper fruits. The fruits of this genus are edible, and in the wild they are frequently dispersed by lizards and birds.[5]

Species

(As of September 2023), Plants of the World Online accepted the following species:[1]

Image Scientific name Distribution
Melocactus acunae León Eastern Cuba
Melocactus andinus.jpg Melocactus andinus R.Gruber ex N.P.Taylor Venezuela
Melocactus azureus 1e.jpg Melocactus azureus Buining & Brederoo Brazil (Bahia)
Melocactus acipinosus 1.jpg Melocactus bahiensis (Britton & Rose) Luetzelb. Brazil (Bahia)
Melocactus bellavistensis 2019-04-14 05.jpg Melocactus bellavistensis Rauh & Backeb. Ecuador and Peru
Melocactus braunii Esteves.jpg Melocactus braunii Esteves Brazil (Bahia)
Melocactus brederooianus Buining Brazil (Bahia)
Melocactus broadwayi (Britton & Rose) A.Berger Trinidad & Tobago
Melocactus caroli-linnaei.jpg Melocactus caroli-linnaei N.P.Taylor Jamaica
Melocactus conoideus 2.jpg Melocactus conoideus Buining & Brederoo Brazil
Melocactus curvispinus curvispinus (1).jpg Melocactus curvispinus Pfeiff. Mexico, Central America, Colombia and western Venezuela
Melocactus deinacanthus 1e.jpg Melocactus deinacanthus Buining & Brederoo Brazil
Melocactus ernestii in habitat.jpg Melocactus ernestii Vaupel Brazil (Bahia and Minas Gerais.)
Melocactus estevesii P.J.Braun.jpg Melocactus estevesii P.J.Braun Brazil (Roraima)
Melocactus evae Z.Mészáros Southeastern Cuba
Melocactus ferreophilus Buining & Brederoo Brazil (Bahia)
Melocactus glaucescens flowering.jpg Melocactus glaucescens Buining & Brederoo Brazil
Melocactus harlowii.jpg Melocactus harlowii (Britton & Rose) Vaupel Cuba
Melocactus heimenii spec nov IMG 2452a StO 2018-15.jpg Melocactus heimenii P.J.Braun & Gonç.Brito Brazil (Bahia)
Melocactus holguinensis Areces Cuba
Melocactus inconcinnus Buining & Brederoo Northeastern Brazil
仙人掌-彩雲 Melocactus intortus -新加坡濱海灣花園 Gardens by the Bay, Singapore- (24529242269).jpg Melocactus intortus (Mill.) Urb. Bahamas to Turks-Caicos Islands, Puerto Rico to Lesser Antilles
Melocactus lagunaensis (Z.Mészáros) D.Barrios & Majure Southeastern Cuba
Melocactus lanssensianus.jpg Melocactus lanssensianus P.J.Braun Brazil (Pernambuco)
Melocactus lemairei (Monv. ex Lem.) Miq. ex Lem. Hispaniola (NW. Haiti, W. & Southern Dominican Republic)
Melocactus warasii.jpg Melocactus levitestatus Buining & Brederoo Central & Eastern Brazil
Melocactus macracanthos subsp. macracanthos (2447780534).jpg Melocactus macracanthos (Salm-Dyck) Link & Otto Aruba to Netherlands Antilles
Melocactus matanzanus.jpg Melocactus matanzanus León Cuba
Melocactus mazelianus Ríha Eastern Colombia to Venezuela
Melocactus nagyi Z.Mészáros Southeastern Cuba
Melocactus neoviridescens Guiggi Northeastern Brazil
Melocactus guaricencis.jpg Melocactus neryi K.Schum. Venezuela to N. Brazil
Melocactus oreas Miquel.jpg Melocactus oreas Miq. Brazil
Melocactus pachyacanthus.JPG Melocactus pachyacanthus Buining & Brederoo Brazil
Melocactus paucispinus Heimen & R.J.Paul Bahia Brasil.JPG Melocactus paucispinus Heimen & R.J.Paul Bahia, Brazil
Melocactus pedernalensis M.M.Mejía & R.G.García Southeastern Haiti to southwestern Dominican Republic
Melocactus perezassoi Areces Central Cuba
Melocactus peruvianus 1e.jpg Melocactus peruvianus Vaupel Peru
Melocactus praerupticola Areces Dominican Republic
Melocactus pruinosus Werderm. Brazil (Bahia, Minas Gerais)
Melocactus radoczii Z.Mészáros Southeastern Cuba
Melocactus salvadorensis subspec. oliveirae P.J.Braun.jpg Melocactus salvadorensis Werderm. Brazil (Southern Bahia, Minas Gerais)
Melocactus santiagoensis D.Barrios & Majure Cuba
Melocactus schatzlii ssp schatzlii pm.JPG Melocactus schatzlii H.Till & R.Gruber Venezuela (Mérida)
Melocactus sergipensis at type locality.jpg Melocactus sergipensis N.P.Taylor & Meiado Brazil (Sergipe)
Melocactus smithii (Alexander) Buining ex G.D.Rowley.jpg Melocactus smithii (Alexander) Buining ex G.D.Rowley Brazil
Melocactus stramineus Suringar Aruba
Melocactus violaceus ssp. natalensis P.J.Braun & Esteves Rio Grande do Norte Brasil.jpg Melocactus violaceus Pfeiff. Northeastern Brazil (to Northeastern Minas Gerais)
Melocactus zehntneri (Britton & Rose) Luetzelburg Rio Grande do Norte, Brasil.jpg Melocactus zehntneri (Britton & Rose) Luetzelb. Northeastern Brazil

Natural hybrids

(As of September 2023), Plants of the World Online accepted the following natural hybrids:[1]

Image Scientific name Distribution
Melocactus x albicephalus Buining & Brederoo Bahia Brasil.jpg Melocactus × albicephalus Buining & Brederoo Brazil (Bahia)
Melocactus × horridus Werderm. Brazil (Pernambuco)
Melocactus × trachycephalus Suringar Aruba

References

  1. 1.0 1.1 1.2 "Melocactus Link & Otto". Plants of the World Online. Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331763-2. Retrieved 2023-09-30. 
  2. 2.0 2.1 2.2 Anderson, Edward F. (2001), The Cactus Family, Pentland, Oregon: Timber Press, ISBN 978-0-88192-498-5 , pages=456–467
  3. [1]
  4. "Coastal Lake-Sediment Records of Prehistoric Hurricane Strikes in Honduras and Turks and Caicos Islands of the Caribbean Basin". googleusercontent.com. Archived from the original on 2010-07-19. https://web.archive.org/web/20100719034145/http://etd.lsu.edu/docs/available/etd-06072004-125021/unrestricted/Knowles_thesis.pdf. 
  5. Thomson, George (2008). Melocactus: care and cultivation. p. 13. 

External links

Wikidata ☰ Q310879 entry