Greigia

Habit of Greigia sphacelata.

The Greigia form a genus in the subfamily Bromelioideae within the family Bromeliaceae ( Bromeliaceae ). In this genus there are about 30 species.

The genus name honors Greigia the President of the Russian plant communities Samuel Alexeivich Greig ( 1827-1887 ).

Occurrence

The distribution of the genus Greigia lies in the Neotropics. The areas of Greigia species ranging from Mexico to Chile. Depending on the type they thrive at altitudes 0-3500 meters. They thrive mainly in moist or swampy forests.

Because of their size rarely will you find Greigia types in private collections. Botanical gardens often cultivate several ways. You need high humidity and do not tolerate frost. They are easy to propagate vegetatively via Kindel. Seed obtained rare, because they are not self-fertile.

Description

Greigia species are stemless or forming a more or less short trunk, perennial, herbaceous plants. This xerophytes grow mostly terrestrial or on rock, scarce as epiphytes. With its foothills they often form dense populations. The numerous, depending on the nature very different long leaves are thin, oblong, dense and strongly reinforced at the edge ( spiky cut ).

Sitting at the pendant, simple, aged men, head - or roller-like inflorescences with short inflorescence stem, sometimes strikingly colored bracts ( bracts ). Since the inflorescences, as an exception under the Bromeliaceae, are not formed terminally but pendant, a rose at intervals produce several inflorescences. An inflorescence contains many flowers. The threefold, radial symmetry flowers are hermaphrodite with double perianth. The three sepals are free. The three free petals are white through pink to reddish. There are two circles, each with three free stamens present. Three carpels are fused into one inferior ovary. The style ends in a three-lobed stigma.

Flowers formula:

The berries contain many seeds. The berries of Greigia sphacelata be eaten.

System

For the genus Greigia usually there is the synonym Hesperogreigia Skottsb ..

Often there is confusion with the species of the closely related genera Ochagavia and Fascicularia ( In Ochagavia the petals pink. Are ) ( In today monotypic genus Fascicularia the petals are blue to purple ).

There are about 30 species Greigia:

  • Greigia alborosea ( Griseb. ) Mez
  • Greigia aristeguietae L.B.Smith
  • Greigia atrobrunnea H.Luther
  • Greigia atrocastanea H.Luther
  • Greigia berteroi Skottsb.
  • Greigia cochabambae H.Luther
  • Greigia collina L.B.Smith
  • Greigia columbiana L.B.Smith
  • Greigia danielii L.B.Smith
  • Greigia exserta L.B.Smith
  • Greigia juareziana L.B.Smith
  • Greigia kessleri H.Luther
  • Greigia landbeckii ( Lechler ex Griseb. ) Phil
  • Greigia leymebambana H.Luther
  • Greigia macbrideana L.B.Smith
  • Greigia mulfordii L.B.Smith
  • Greigia nubigena L.B.Smith
  • Greigia oaxacana L.B.Smith
  • Greigia ocellata L.B.Smith & Steyermark
  • Greigia pearcei Mez
  • Greigia racinae L.B.Smith
  • Greigia raporum H.Luther
  • Greigia rohwederi L.B.Smith
  • Greigia sanctae - martae L.B.Smith
  • Greigia sodiroana Mez
  • Greigia sphacelata ( Ruiz & Pavón ) rule
  • Greigia stenolepis L.B.Smith
  • Greigia steyermarkii L.B.Smith
  • Greigia sylvicola Standley
  • Greigia tillettii L.B.Smith & R.W.Read
  • Greigia van hyningii L.B.Smith
  • Greigia vilcabambae H.Luther
  • Greigia vulcanica André

Swell

  • Betina Will & Georg Zizka :: A review of the genus Greigia rule ( Bromeliaceae ) in Chile. in Harvard Pap bot, 1999, 4 ( 1), 225-240.
  • Harry E. Luther: An Alphabetical List of Bromeliad Binomials, 2008 The Marie Selby Botanical Gardens, Sarasota, Florida, USA. Published by The Bromeliad Society International. (PDF file, 314 kB)
  • Werner Rauh: Bromeliads - Tillandsias and other cultural worthy bromeliads, Verlag Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-6371-3
  • Klaus Piepenbring: To culture of Greigia, in the bromeliad, 2, 1988, pp. 23, ISSN 0724 / 0155
Eduard August von Regel Range (biology) Ovary (botany) Berry
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