| 词条 | Pterostylis clavigera |
| 释义 |
| name = Hairy snail orchid | image = | genus = Pterostylis | species = clavigera | authority = Fitzg. [1] | synonyms_ref = [1] | synonyms = Linguella clavigera (Fitzg.) D.L.Jones & M.A.Clem. }} Pterostylis clavigera, commonly known as the hairy snail orchid is a species of orchid which is endemic to New South Wales. It has a rosette of leaves at its base, and when flowering, a single narrow, bright green and white flower on a rough flowering stem. DescriptionPterostylis clavigera is a terrestrial, perennial, deciduous, herb with an underground tuber and a rosette of dull green leaves {{convert|7-17|mm|in|sigfig=1|abbr=on}} long and {{convert|5-10|mm|in|sigfig=1|abbr=on}} wide with wavy edges. A single bright green and white flower, {{convert|11-17|mm|in|sigfig=1|abbr=on}} long and {{convert|4-7|mm|in|sigfig=1|abbr=on}} wide is borne on a flowering stem {{convert|50-150|mm|in|sigfig=1|abbr=on}} high and covered with short hairs. The dorsal sepal and petals are fused, forming a hood or "galea" over the column, the sepal and petals with a short, nearly horizontal point on the end. The lateral sepals are erect, in close contact with the galea and have thread-like tips {{convert|10-15|mm|in|sigfig=1|abbr=on}} long. The lateral sepals almost close off the front of the flower and the sinus between them has a dark green central area. The labellum is {{convert|3-5|mm|in|sigfig=1|abbr=on}} long, {{convert|1-2|mm|in|sigfig=1|abbr=on}} wide and hidden inside the flower. Flowering occurs from June to September.[2]Taxonomy and namingPterostylis clavigera was first formally described in 1885 by Robert D. FitzGerald and the description was published in Journal of Botany, British and Foreign.[3] The specific epithet (clavigera) is a Latin word meaning "club-bearer".[4]Distribution and habitatThe hairy snail orchid grows in shrubland, woodland and rocky slopes between Mudgee and Dubbo and in nearby areas.[2] References1. ^{{WCSP | 170532 | Pterostylis clavigera }} {{Taxonbar|from=Q15493078}}2. ^1 {{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=978-1877069123|page =298}} 3. ^1 {{cite web|title=Pterostylis clavigera|url= https://id.biodiversity.org.au/instance/apni/486786|publisher=APNI|accessdate=25 July 2017}} 4. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page =213}} 4 : Pterostylis|Endemic orchids of Australia|Orchids of New South Wales|Plants described in 1885 |
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