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Neoregelia

From Wikipedia, the free encyclopedia

Neoregelia
Neoregelia in bloom at a botanical garden.
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Bromeliaceae
Subfamily: Bromelioideae
Genus: Neoregelia
L.B.Sm.
Subgenera

See text.

Synonyms[1]

Regelia (Lem.) Lindm. 1890, illegitimate homonym, not Schauer 1843 nor H. Wendl. 1865

Neoregelia is a genus of epiphytic flowering plants in the family Bromeliaceae, subfamily Bromelioideae, native to South American rainforests.[1] The genus name is for Eduard August von Regel, Director of St. Petersburg Botanic Gardens in Russia (1875–1892).[2]

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Transcription

Description

Neoregelias are epiphytic plants, meaning they grow attached to the branches of forest trees; they do not naturally grow on soil, though they can be cultivated on the ground in controlled conditions, such as a garden, provided they are kept in a very airy growing medium such as pine bark that allows the root system to breathe. Their roots serve primarily as hold-fasts to grip their canopy perches and are adapted poorly to absorb nutrients, which is instead obtained through leaf litter, animal droppings and rainfall that collects in the prominent central cup exhibited by most species in the genus. They have mostly broad, relatively flat leaves often marked brightly with red, purple or yellow pigments which serve to protect the green photosynthetic tissues from sunburn and through selective breeding and hybridization, thousands of cultivars in many color combinations, many also striped with white, have been produced.[citation needed]

The inflorescences of these plants form in the shallow central depression - the "cup" - of the plant, which often partially fills with water, through which the flowers bloom. Neoregelias, like most bromeliads, bloom only once in their lifetime and then begin to die, but normally not before producing several pups - small clones of the parent plant - around the central flowering rosette on stolons.[3] These offshoots eventually replace the mother plant and form a cluster around it - although in cultivation, the offshoots can be severed and replanted when about two-thirds the size of the adult plant. The leaves immediately surrounding the inflorescence are very often brightly colored, even in species otherwise not brightly marked - an adaptation to attract pollinating insects.

Cultivation

Neoregelia bromeliads and their hybrids, due to their varied forms and beautiful colors, are commonly cultivated as houseplants, or in warm climates as landscape plants. They are particularly suitable for vivarium culture. Their needs are simple, mainly consisting of bright light (most forms will revert to green if lighting is sub-optimal) and an airy growing medium - some species do not do well in soil and will be prone to rot due to their nature as epiphytes.

In temperate regions where temperatures fall below 10 °C (50 °F), they must be grown under glass or as houseplants.[3] There are over 5000 registered cultivars.[citation needed]

Symbiosis

Neoregelias are utilized by many species of poison dart frog to reproduce. The frogs raise their tadpoles in the security of the water-filled cup in the bromeliads' rosettes, allowing them to stay in the relative safety of the treetops and not have to venture to a pool on the ground where predators are likely much more numerous. Waste products from the frogs and their offspring, once deposited into the cup, are utilized by the plant for nourishment.[4]

Subgenera

As of November 2022, the Encyclopaedia of Bromeliads recognized three subgenera:[5]

A former subgenus, N. subg. Hylaeaicum, was elevated to the genus Hylaeaicum in 2021.[6]

Species

As of November 2022, Plants of the World Online accepted the following species:[7]

Former species

Species transferred to Hylaeaicum include:

Gallery

  • Neoregelia 'Perfection' plant
    Neoregelia 'Perfection' plant
  • Neoregelia 'Perfection' closeup
    Neoregelia 'Perfection' closeup
  • Photo of a Neoregelia at the United States Botanic Garden.
    Photo of a Neoregelia at the United States Botanic Garden.
  • Neoregelia 'Yellow Devil' flower emerging from submerged inflorescence.
    Neoregelia 'Yellow Devil' flower emerging from submerged inflorescence.

References

  1. ^ a b Kew World Checklist of Selected Plant Families
  2. ^ "Bromeliad Info - Genera Etymology". Archived from the original on 2007-02-03. Retrieved 2009-10-19.
  3. ^ a b RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 978-1405332965.
  4. ^ https://www.aqua.org/blog/2013/July/the-life-cycle-of-poison-dart-frogs-explained
  5. ^ Gouda, E.J.; Butcher, D.; Gouda, C.S. (2022). "genus Neoregelia L.B.Sm". Encyclopaedia of Bromeliads. Utrecht University Botanic Gardens. Retrieved 2022-11-06.
  6. ^ Leme, Elton M. C.; Zizka, Georg; Paule, Juraj; Aguirre-Santoro, Julián; Heller, Sascha; Ramírez-Morillo, Ivón M.; Halbritter, Heidemarie; Mariath, Jorge E. A.; Carvalho, Jordano D. T. De & Forzza, Rafaela C. (2021). "Re-evaluation of the Amazonian Hylaeaicum (Bromeliaceae: Bromelioideae) based on neglected morphological traits and molecular evidence". Phytotaxa. 499 (1): 1–60. doi:10.11646/phytotaxa.499.1.1. S2CID 235568878.
  7. ^ "Neoregelia L.B.Sm.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2022-11-22[dead link]

External links

Wikimedia Commons has media related to Neoregelia.
This page was last edited on 29 November 2023, at 21:03
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