Ochagavia

Inflorescence of Ochagavia carnea.

The Ochagavia form a plant genus of the subfamily Bromelioideae in the family Bromeliaceae ( Bromeliaceae ). The only five species occur only in central Chile, and on the Robinson Crusoe island.

Description

Ochagavia species are stemless or forming a short stem, perennial, herbaceous plants. This xerophytes grow terrestrially. With its underground runners to form almost impenetrable stands. 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 terminal, simple, aged men, head - or roller-like inflorescences with short inflorescence stem, sometimes strikingly colored bracts ( bracts ). An inflorescence rarely contains only seven, usually ten to fifty flowers. The threefold, radial symmetry flowers are hermaphrodite with double perianth. The three free, white to pink sepals overlap only at their base. The three free petals are pink. There are two circles, each with three stamens present. The stamens are usually free; only Ochagavia elegans they are fused with short base of the sepals. Anthers have a size of 0.3 to 0.6 cm × 0.1 to 0.2 centimeters to. The monokolpaten pollen have a size 46 to 59.1 microns × to 27 to 31.4 microns. Three carpels are fused into one inferior ovary. The style ends in a three-lobed stigma. Style and stamens protrude beyond the petals.

The flowers formula is:

In the (rare 1.5 to ) 2 to 4.5 × 0.4 to 1.7 inches large berries, the sepals are recognizable and they contain many seeds. The dark brown to black seeds have a size from 0.12 to 0.35 × 0.1 in to 0.13 centimeters.

Occurrence

The areas are located in Chile. There are endemic species of central Chile between latitudes 31 ° 33 'and 38 ° 14 ' S. Ochagavia elegans is endemic to the Robinson Crusoe island in the Juan Fernández Islands. In this area there is more or less Mediterranean climate. Depending on the type they thrive at altitudes 0-2500 meters. From two types is known that although they tolerate frost but no snow down to -5 ° C.

Because of their size is rare to find these types in private collections in areas where they can not be maintained in the open air by the occurrence of excessive frosts. But in some tropical or subtropical parks, gardens and botanical gardens will find this relatively undemanding plants.

System

The genus Ochagavia was established by Federico Philippi 1856, when monotypic with the only kind Ochagavia elegans Phil. A little later, Philippi (1858 ) the genus Rhodostachys, on with the two types Rhodostachys andina Phil and Rhodostachys litoralis Phil. United 1896 Mez the two genera under the name Rhodostachys younger. Today Rhodostachys is a synonym of Ochagavia. Another synonym is Ruckia rule. Zizka, Trumpler & Zoellner established 1998, two species that previously belonged to the genus Fascicularia (again) to the genus Ochagavia. The genus name honors Ochagavia the Chilean judicial and education ministers Silvestre Ochagavía Errazuriz ( 1820-1883 ).

Often there is confusion with the species of the closely related genera Greigia and Fascicularia ( In today monotypic genus Fascicularia the petals are blue to purple; style and stamens do not protrude beyond the petals. ).

There are only five (or in some four authors ) Ochagavia types:

  • Ochagavia andina ( Phil.) Zizka, Trumpler & Zoellner: it was placed in this genus in 2002. It grows at altitudes 700-2500 meters in the Chilean regions O'Higgins, Maule and Bío -Bío.
  • Ochagavia carnea (Beer ) LBSmith & Looser: It thrives (rarely to 60 ) at altitudes between 200 and 1080 meters in the Chilean regions of Valparaiso, Maule, Bío -Bío and Araucanía.
  • Ochagavia chamissonis ( Mez ) L.B.Sm. & Looser: It occurs only in the Chilean region of Concepcion.
  • Ochagavia elegans PHIL: It grows on rocks at altitudes between 20 and 600 meters in the Chilean region of Valparaiso endemic to the Robinson Crusoe island in the Juan Fernández Islands.
  • Ochagavia litoralis ( Phil.) Zizka, Trumpler & Zoellner: it was placed in this genus in 2002. As the specific epithet suggests, this type thrives mainly in the Chilean coastal areas at altitudes between 10 and 250 meters from Illapel, Coquimbo to Colchagua.

Swell

  • Georg Zizka, Katja Trumpler & Otto publican: Revision of the genus Ochagavia ( Bromeliaceae, Bromelioideae ) in Willdenowia 32: 331-350, 2002 ISSN 0511-9618. Online. (PDF; 726 kB)
  • 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
  • In "Species Index " on Ochagavia click on Eric J. Gouda, Gouda Derek Butcher & Kees: Encyclopaedia of Bromeliads, Version 3.1 ( 2012). last seen on July 28, 2013 ( section systematics with distribution of the species. )
Ovary (botany) Berry Range (biology)
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