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Lockheed EC-130 Hercules
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Lockheed EC-130 Hercules

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Also known as EC-130 Hercules, EC-130, Hercules

Drakaea is a genus of 10 species in the plant family Orchidaceae commonly known as hammer orchids. All ten species occur only in the south-west of Western Australia. Hammer orchids are characterised by an insectoid labellum that is attached to a narrow, hinged stem, which holds it aloft. The stem can hinge only backwards, where the broadly winged column carries the pollen and stigma. Each species of hammer orchid is pollinated by a specific species of thynnid wasp. Thynnid wasps are unusual in that the female is flightless and mating occurs when the male carries a female away to a source of fo

Species

Drakaea es un género de orquídeas. Tiene diez especies.​ Las Orquídeas en este género son comúnmente llamadas "Hammer Orquídeas". Su nombre común se refiere a la forma de la orquídea en forma parecida a un martillo.

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Wikidata facts

Instance of
taxon
Parent taxon
Drakaeinae
Named after
Sarah Ann Drake
Image
Drakaea glyptodon.jpg
Show 8 more facts
taxon rank
genus
taxon name
Drakaea
topic's main category
Category:Drakaea
Commons gallery
Drakaea
Commons category
Drakaea
military designation
EC-130
nickname
Hercules
Sources (1)

via Wikidata · CC0

~6 min read

Encyclopedic overview

8 sections
Contents
  • Description
  • Pollination mechanism
  • Taxonomy and naming
  • Distribution and habitat
  • Conservation
  • List of species
  • References
  • External links

Drakaea is a genus of 10 species in the plant family Orchidaceae commonly known as hammer orchids. All ten species occur only in the south-west of Western Australia. Hammer orchids are characterised by an insectoid labellum that is attached to a narrow, hinged stem, which holds it aloft. The stem can hinge only backwards, where the broadly winged column carries the pollen and stigma. Each species of hammer orchid is pollinated by a specific species of thynnid wasp. Thynnid wasps are unusual in that the female is flightless and mating occurs when the male carries a female away to a source of food. The labellum of the orchid resembles a female thynnid wasp in shape, colour and scent. Insect pollination involving sexual attraction is common in orchids but the interaction between the male thynnid wasp and the hammer orchid is unique in that it involves the insect trying to fly away with a part of the flower.

==Description== Hammer orchids have a single thumbnail-sized, flat, heart-shaped, fleshy, ground-hugging leaf and a long, thin, wiry stem. The stem bears a leaf-like bract below half way and a single flower at its summit. The flower is highly modified in that the labellum resembles a female thynnid wasp in shape and colour and which produces a scent that mimicks a pheromone produced by the female. There is a single (male) stamen bearing two pollinia close to the single (female) stigma. After fertilisation, the ovary develops into a non-fleshy capsule containing up to 500 seeds.thumb|D. glyptodon labelled image

Excerpted from Wikipedia’s “Lockheed EC-130 Hercules” article, available under the CC BY-SA 4.0 licence.

Gallery (3)