| 词条 | Corybas abellianus |
| 释义 |
| name = Nodding helmet orchid | status_system = | status = | taxon= Corybas abellianus | image= | image_caption= | authority=Dockrill[1] | synonyms_ref = | synonyms = }} Corybas abellianus, commonly known as the nodding helmet orchid,[2] is a species of terrestrial orchid endemic to tropical north Queensland. It forms small colonies and has single heart-shaped, dark green leaf with a silvery white lower side and a reddish purple flower with a curved dorsal sepal. DescriptionCorybas abellianus is a terrestrial, perennial, deciduous, herb with a single heart-shaped to almost round leaf {{convert|10-20|mm|in|sigfig=1|abbr=on}} long and {{convert|5-10|mm|in|sigfig=1|abbr=on}} wide. The leaf is dark green with silvery white veins on the upper surface and reddish on the lower side. The reddish purple flower is {{convert|8-10|mm|in|sigfig=1|abbr=on}} long and {{convert|5-6|mm|in|sigfig=2|abbr=on}} wide and leans downwards. The largest part of the flower is the dorsal sepal which is {{convert|12-15|mm|in|sigfig=1|abbr=on}} long and {{convert|6-8|mm|in|sigfig=1|abbr=on}} wide. The lateral sepals are narrow triangular, about {{convert|1|mm|in|sigfig=1|abbr=on}} long and turn downwards. The petals are less than {{convert|1|mm|in|sigfig=1|abbr=on}} long. The labellum is much shorter than the dorsal sepal, smooth and has a whitish tip. Flowering occurs from February to May.[2][3]TaxonomyCorybas abellianus was first formally described in 1955 by Alick Dockrill and the description was published in The North Queensland Naturalist.[4]Distribution and habitatThe nodding helmet orchid grows in small groups in rainforest on the higher parts of the Atherton Tableland and as far south as Tully Falls near Ravenshoe.[2][3] References1. ^{{WCSP | 47663 | Corybas abellianus }} {{Taxonbar|from=Q10260986}}2. ^1 2 {{cite book|last1=Jones|first1=David L.|title=A complete guide to native orchids of Australia including the island territories|date=2006|publisher=New Holland|location=Frenchs Forest, N.S.W.|isbn=1877069124|page =168}} 3. ^1 {{cite web|title=Corybas abellianus|url=http://keys.trin.org.au/key-server/data/08090a09-0d0e-410b-860c-020705070e0e/media/Html/Corybas_abellianus.htm|publisher=Australian Tropical Rainforest Orchids|accessdate=4 May 2018}} 4. ^{{cite web|title=Corybas abellianus|url=https://id.biodiversity.org.au/instance/apni/498292|publisher=APNI|accessdate=4 May 2018}} 5 : Acianthinae|Corybas|Endemic orchids of Australia|Orchids of Queensland|Plants described in 1955 |
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