| 词条 | Cyrtostylis oblonga |
| 释义 |
| name= Winter orchid | image = | image_caption = | regnum = Plantae | unranked_divisio = Angiosperms | unranked_classis = Monocots | ordo = Asparagales | familia = Orchidaceae | subfamilia = Orchidoideae | tribus = Diurideae | subtribus = Acianthinae | genus = Cyrtostylis | species = C. oblonga | binomial = Cyrtostylis oblonga | binomial_authority = Hook.f.[1] | synonyms_ref=[2] | synonyms=
}} Cyrtostylis oblonga, commonly known as the winter orchid[3] or gnat orchid,[4] is a species of orchid endemic to New Zealand. It has a single rounded leaf and a flowering stem with up to four pink or pinkish green flowers with a flat, oblong labellum. DescriptionCyrtostylis oblonga is a terrestrial, perennial, deciduous, herb with a single heart-shaped to almost round leaf {{convert|10-40|mm|in|sigfig=1|abbr=on}} long and {{convert|8-17|mm|in|sigfig=1|abbr=on}} wide. Up to four pink or pinkish green flowers {{convert|8-10|mm|in|sigfig=1|abbr=on}} long are borne on a thin flowering stem up to {{convert|100|mm|in|sigfig=1|abbr=on}} high. The dorsal sepal is erect, linear to narrow lance-shaped and the lateral sepals are narrow linear and somewhat smaller than the dorsal sepal. The petals are similar in size and shape to the lateral sepals. The labellum is flat, oval, about {{convert|10|mm|in|sigfig=1|abbr=on}} long {{convert|4|mm|in|sigfig=2|abbr=on}} wide with two round calli at the base and two parallel longitudinal ridges. The column is shorter than the labellum and has two wings widening towards the tip. Flowering occurs from July to November.[2][3]Taxonomy and namingCyrtostylis oblonga was first formally described in 1853 by Joseph Dalton Hooker and the description was published in Flora Novae-Zelandiae.[4][5] The specific epithet (oblonga) is a Latin word meaning "longer than broad".[6]Distribution and habitatThe winter orchid grows in scrub, forest and open areas on the northern part of the North Island and on Three Kings Islands in New Zealand.[2][3] References1. ^{{WCSP | 54920 | Cyrtostylis oblonga }} 2. ^1 2 {{cite web|last1=de Lange|first1=Peter J.|title=Cyrtostylis oblonga|url=http://nzpcn.org.nz/flora_details.aspx?ID=1780|publisher=New Zealand Plant conservation Network|accessdate=1 May 2018}} 3. ^1 2 {{cite web|title=Cyrtostylis oblonga|url=http://www.nativeorchids.co.nz/Species/Cyrtostylis_oblonga.html|publisher=New Zealand Native Orchid Group|accessdate=1 May 2018}} 4. ^1 {{cite web|title=Cyrtostylis oblonga|url= https://id.biodiversity.org.au/instance/apni/734073|publisher=APNI|accessdate=1 May 2018}} 5. ^{{cite book|last1=Hooker|first1=Joseph Dalton|title=The botany of the Antarctic voyage of H.M. discovery ships Erebus and Terror. II. Flora Novae-Zelandiae|date=1853|publisher=Lovell Reeve and Co.|location=London|page=246|url=https://www.biodiversitylibrary.org/item/54141#page/297/mode/1up|accessdate=1 May 2018}} 6. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=494}} External links
5 : Cyrtostylis|Acianthinae|Endemic orchids of New Zealand|Orchids of New Zealand|Plants described in 1853 |
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