| 词条 | Pterostylis areolata |
| 释义 |
| name = Greenhood | image = | image_caption = | genus = Pterostylis | species = areolata | authority = Petrie[1] | synonyms_ref = | synonyms = }} Pterostylis areolata is a species of orchid endemic to New Zealand. As with similar greenhoods, the flowering plants differ from those which are not flowering. The non-flowering plants have a rosette of leaves flat on the ground but the flowering plants have a single flower with leaves on the flowering spike. This greenhood has green and translucent white-striped flowers similar to those of P. australis but the stem leaves are shorter and never higher than the flowers. DescriptionPterostylis areolata is a terrestrial, perennial, deciduous, herb with an underground tuber and when not flowering, one or two egg-shaped leaves, {{convert|30-90|mm|in|sigfig=1}} long and {{convert|10-25|mm|in|sigfig=1}} wide. Flowering plants usually have a single pale green flower with translucent white stripes, sometimes with orange-coloured tips. The flowers are relatively large, lean forwards and are borne on a flowering stem {{convert|70-250|mm|in|sigfig=1}} high with between two and four stem leaves. The dorsal sepal and petals are fused, forming a hood or "galea" over the column with the dorsal sepal having a short point on its end. The lateral sepals spread apart from each other and turn towards the back of the galea. The labellum is red becoming darker near the tip. Flowering occurs from October to December.[2][3]Taxonomy and namingPterostylis areolata was first formally described in 1968 by Donald Petrie and the description was published in Transactions and Proceedings of the New Zealand Institute from a specimen collected near the Awatere River.[4][5] The specific epithet (areolata) is a Latin word meaning "with small spaces".[6]Distribution and habitatThis greenhood grows in tussock grassland and scrub, near wetlands and in open forest. It occurs on both main islands of New Zealand, in a few places on the North Island but is widespread, especially on the eastern side of the South Island.[2][3] References1. ^{{WCSP | 170503 | Pterostylis areolata }} {{Taxonbar|from=Q15491576}}2. ^1 {{cite web|last1=de Lange|first1=Peter James|title=Pterostylis areolata|url=http://www.nzpcn.org.nz/flora_details.aspx?ID=1208|publisher=New Zealand Plant Conservation Network|accessdate=16 June 2017}} 3. ^1 {{cite web|title=Pterostylis areolata|url=http://www.nativeorchids.co.nz/Descriptions/Pterostylis_areolata.html|publisher=New Zealand Native Orchid Group|accessdate=16 June 2017}} 4. ^{{WCSP | 170503 | Pterostylis areolata }} 5. ^{{cite journal|last1=Petrie|first1=Donald|title=Description of new native flowering plants|journal=Transactions and Proceedings of the New Zealand Institute|date=1917|volume=50|pages=210–211|url=https://www.biodiversitylibrary.org/item/22744#page/250/mode/1up|accessdate=16 June 2017}} 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 =100}} 4 : Pterostylis|Endemic orchids of Australia|Orchids of New Zealand|Plants described in 1949 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。