Epipremnum

Golden Pothos ( Epipremnum aureum )

The Efeututen ( Epipremnum ) are a genus of flowering plants in the family of Araceae ( Araceae ). There are about 15 species.

  • 5.1 Notes and references

Description

Epipremnum species are climbing or creeping, perennial herbaceous plant that can climb 20 meters up to heights. They form ( Nodien ) adventitious roots to hold the documents, for example trunks on the node. There is only one sheet per species type ( Homophyllie ) available. The alternate, stalked, simple leaves are sometimes split backup. Some varieties are variegated. The leaf sheaths, Cataphylle and Prophylle are not long-lasting and fade soon.

The individually and some standing together inflorescences have pencil -shaped to slightly compressed acting, not flipped Blütenstandsschäfte. How Araceae typical inflorescences consist of a piston ( spadix ) and the enveloping spathe him. The boat-shaped, schnutzig - white, greenish or yellow spathe can remain almost closed or spread out flat; often it is already on wither before the last flowers are faded. The piston is cylindrical and tapers gradually to the tip. The uppermost and the lowermost portion of the piston usually has sterile flowers. The small flowers are hermaphroditic. There are no bloom yet. There are four stamens present. The pollen is 36 to 44 microns in size. The unilocular ovary is cylindrical, laterally compressed and uneven edges. Epipremnum have two to four, rarely up to six anatrope ovules on the basis of only one placenta, less than Rhaphidophora. There is a clear pen available.

The berries have a greatly enlarged stylus region containing a different colored sticky Pulp and few seeds. The large, 3 to 7 mm long, 1.5 to 4.0 mm wide, curved ( in this they differ from the other genera of the tribe ) seeds. The seed coat ( testa) is hard and in relief ( at Rhaphidophora is it smooth ).

All parts of the plant are due to the content of calcium oxalate - especially for small children and pets - toxic when consumed in large quantities. Symptoms of poisoning include burning or swelling of the lips, mouth, throat, diarrhea. For repeated exposure may cause irritation of the skin.

On chromosome numbers 2n = 60 were (56, 84) determined.

Dissemination

The area of the genus has its center of gravity in the rain forests of tropical Asia, ranging from Japan ( Ryukyu Islands) on the Malay Archipelago to Australia (Queensland ) and India ( Manipur ) to the Pacific Cook Islands ( Rarotonga ).

There are many climbing plants in evergreen rain forests. They usually grow under partial shade to shady conditions. Sometimes they grow lithophytic at exposed locations. In many subtropical to tropical countries of the world Epipremnum is aureum feral ( invasive plant ). Especially often find Epipremnum aureum in anthropogenically disturbed areas.

Use

One way Epipremnum aureum, and their cultural forms are estimated and easy to clean, widespread and shadow friendly houseplants.

System

The genus Epipremnum in 1857 by Heinrich Wilhelm Schott in Bonplandia ( Hanover ), 5, pp. 45 drawn up. This was based on the only known him kind Epipremnum mirabile Schott, now a synonym of Epipremnum pinnatum (L. ) Engl.

Species

There are about 15 (formerly 30 ) species (select):

  • Epipremnum amplissimum (Schott ) Engl
  • Golden Pothos ( Epipremnum aureum ( Linden & André ) GSBunting ): There is a variegated form. ( Syn: .. Epipremnum pinnatum cv ' Aureum ', Epipremnum pinnatum cv D.Nicolson aureum, Pothos aureus Linden & Andre, Rhaphidophora aurea ( Lind. & Andre ) Birdsey, Scindapsus aureus ( Linden & Andre ) Engl ), Origin: Solomon Islands
  • Epipremnum carolinense Volkens
  • Epipremnum ceramense ( Engl & K.Krause ) Alderw.
  • Epipremnum dahlii Engl
  • Epipremnum falcifolium Engl
  • Epipremnum giganteum ( Roxb. ) Schott
  • Epipremnum meeboldii K.Krause
  • Epipremnum moluccanum Schott
  • Epipremnum moszkowskii K.Krause
  • Epipremnum nobile (Schott ) Engl
  • Epipremnum obtusum Engl & K.Krause
  • Epipremnum papuanum Alderw.
  • Epipremnum silvaticum Alderw.

No longer belong to the genus:

  • Epipremnum asperatum Engl → Amydrium zippelianum (Schott) Nicolson
  • Epipremnum beccarii Engl → Rhaphidophora beccarii (Engl. ) Engl
  • Epipremnum elmerianum Engl → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum foraminiferum Engl → Rhaphidophora foraminifera (Engl. ) Engl
  • Epipremnum humile (Schott) Hook. f → Amydrium humile Schott
  • Epipremnum luzonense K.Krause → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum magnificum Engl → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum mampuanum Alderw. → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum medium (inch & Moritzi ) Engl ex DC. → Amydrium medium (inch & Moritzi ) Nicolson
  • Epipremnum minatum Elmer → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum multicephalum Elmer → Rhaphidophora korthalsii Schott
  • Epipremnum palauense Koidz. → Rhaphodophora koidzumii Kaneh.
  • Epipremnum philippinense Engl & K. Krause ex Engl → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum sorsogonense Elmer ex. Merr. → Amydrium magnificum ( Engl ) Nicolson
  • Epipremnum truncatum Engl & K.Krause in Engl → Amydrium medium (inch & Moritzi ) Nicolson
  • Epipremnum zippelianum (Schott ) Engl → Amydrium zippelianum (Schott) Nicolson

Swell

  • J. Nasir Yasin: Araceae in Flora of Pakistan: Epipremnum - Online. (English)
  • PC Boyce: Information on the genus in the Araceae site. (Section Description and dissemination )
  • PC Boyce: A Review of Epipremnum ( Araceae ) in cultivation, In: Aroideana, 27, 2004, pp. 205-211.
  • Walter Erhardt et al: The big walleye. Encyclopedia of plant names. Volume 2 Eugen Ulmer Verlag, Stuttgart, 2008. ISBN 978-3-8001-5406-7
Ovary (botany) Berry testa (botany) Lithophyte Agricultural Research Service
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