Sunday, September 26, 2010

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Phalaenopsis

From Wikipedia, the free encyclopedia

Phalaenopsis
Closeup of a Phalaenopsis flower
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Vandeae
Subtribe: Aeridinae
Alliance: Phalaenopsis
Blume
Genus: Phalaenopsis
Blume 1825
Type species
Phalaenopsis amabilis
Blume, (1825)
Species

see text.

Synonyms
  • Doritis Lindl.
  • Grafia A. D. Hawkes
  • Kingidium P. F. Hunt
  • Kingiella Rolfe
  • Polychilos Breda
  • Polystylus Hasselt ex Hassk.
  • Staurites Rchb. f.
  • Stauroglottis Schauer
  • Synadena Raf.

Phalaenopsis Blume (1825), abbreviated Phal in the horticultural trade,[1] is an orchid genus of approximately 60 species. Phalaenopsis is one of the most popular orchids in the trade, through the development of many artificial hybrids.

Contents

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[edit]Description

The generic name means "Phalaen[a]-like" and is probably a reference to the genus Phalaena, the name given byCarolus Linnaeus to a group of large moths; the flowers of some species supposedly resemble moths in flight. For this reason, the species are sometimes called Moth orchids.

They are native throughout southeast Asia from the Himalayan mountains to the islands of PolilloPalawan andZamboanga del Norte in the island of Mindanao in the Philippines and northern AustraliaOrchid Island of Taiwan is named after this genus. Little recent information about their habitat and their ecology in nature is available since little field research has been done in the last decades.

Phalaenopsis aphrodite (Moon Orchid)

Most are epiphytic shade plants; a few are lithophytes. In the wild, some species grow below the canopies of moist and humid lowland forests, protected against direct sunlight; others grow in seasonally dry or cool environments. The species have adapted individually to these three habitats.

Possessing neither pseudobulbs nor rhizomePhalaenopsis shows a monopodial growth habit: an erect growing stem produces one or two alternate, thick, fleshy, elliptical leaves a year from the top while the older, basal leaves drop off at the same rate. If very healthy, aPhalaenopsis plant can have up to ten or more leaves. Theinflorescence, either a raceme or panicle, appears from the stembetween the leaves. They bloom in their full glory for several weeks. If kept in the home, the flowers may last two to three months.

Some Phalaenopsis species in Malaysia are known to use subtle weather cues to coordinate mass flowering.

[edit]Classification

P. Sogo Yukidian

The species can be classified into two groups :

  • A group with a long, branched inflorescence (up to 1 m long) and large, almost round flowers with rose or white tints.
  • A group with short stems and less rounded, waxy flowers with more pronounced colors.

In terms of Raunkiær plant lifeform terminology, these plants are epiphytes.

Based on DNA-evidence, the genera Doritis Lindl. and Kingidium P.F.Hunt are now included in Phalaenopsis, according to the World Checklist of Monocotyledons, Royal Botanical Gardens, Kew) (See also ref 1). However not every specialist in this field accepts these taxonomic changes.

Intensive cross-fertilization has produced a great number of hybrids in all colors and variations. These are usually more adaptable to artificial conditions than their botanical ancestors. Many are hybrids of Phalaenopsis amabilis,Phalaenopsis schilleriana or Phalaenopsis stuartiana.

[edit]Species

Phalaenopsis (Barbara Moler x Johanna) (an artificial hybrid cultivar)
  • Phalaenopsis amabilis (Moon Orchid; East Malaysia to Papuasia)
    • Phalaenopsis amabilis subsp. amabilis (East Malaysia to Papuasia).
    • Phalaenopsis amabilis subsp. amabilis forma Grandiflora (the Philippines - Palawan island).
    • Phalaenopsis amabilis subsp. moluccana (Northeastern Borneo to the Moluccas).
    • Phalaenopsis amabilis subsp. rosenstromii (New Guinea to Queensland).
  • Phalaenopsis amboinensis (Sulawesi to the Moluccas).
    • Phalaenopsis amboinensis var. amboinensis (the Moluccas).
    • Phalaenopsis amboinensis var. flavida (Sulawesi)
Pink Phalaenopsis
Phalaenopsis flower.JPG
Phalaenopsis cultivars
Phalaenopsis Mambo (a hybrid cultivar)
Phalaenopsis Nivacolor (a hybrid cultivar)

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