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| '''''Pterostylis ampliata''''', commonly known as the '''large autumn greenhood''', is a species of ] ] endemic to eastern ].<ref name=":0">{{Cite book | |
'''''Pterostylis ampliata''''', commonly known as the '''large autumn greenhood''', is a species of ] ] endemic to eastern ].<ref name=":0">{{Cite book |last1=Jeanes |first1=Jeffrey |url=https://www.worldcat.org/oclc/75489661 |title=Wild Orchids of Victoria, Australia |last2=Backhouse |first2=Gary |publisher=Aquatic Photographics |year=2006 |isbn=0-9775372-0-X |pages=160 |language=en |oclc=75489661}}</ref> It is similar in appearance to '']'', a related species restricted to Queensland and New South Wales.<ref name=":1">{{Cite web |last=Stajsic |first=Val |title=''Pterostylis ampliata'' |url=https://vicflora.rbg.vic.gov.au/flora/taxon/69564f1a-6740-426a-871f-79ae10c9bad7 |access-date=5 January 2023 |website=VicFlora |publisher=]}}</ref> | ||
| == Description == | == Description == | ||
| ''Pterostylis ampliata'' is a herbaceous terrestrial orchid with a basal rosette of 3–4 ovate or oblong leaves. When flowering, this basal rosette dies back, and a single large, forward-leaning flower appears on a stalk measuring up to 25 |
''Pterostylis ampliata'' is a herbaceous terrestrial orchid with a basal rosette of 3–4 ovate or oblong leaves. When flowering, this basal rosette dies back, and a single large, forward-leaning flower appears on a stalk measuring up to {{cvt|25|cm}} tall. The flower is primarily green and white striped with some suffuse red-brown colouration and a sickle-shaped ], measuring {{cvt|4.5-7|cm}} long.<ref name=":2">{{Cite web |last1=Jones |first1=David L. |last2=Renner |first2=Matt A.M. |title=''Pterostylis ampliata'' |url=https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Pterostylis~ampliata |access-date=5 January 2023 |website=New South Wales Flora Online |publisher=]}}</ref> Flowering occurs from February to June, depending on location.<ref name=":1" /> | ||
| == Distribution and habitat == | == Distribution and habitat == | ||
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| == Taxonomy and naming == | == Taxonomy and naming == | ||
| ] initially described ''Pterostylis ampliata'' under the name ''Diplodium ampliatum'' in 2019 based on a ] collected in 1989 from ], New South Wales. The ] was derived from the ] word ''ampliatus'', meaning 'enlarged', in reference to the species' larger flowers when compared with those of ''Pterostylis revoluta''.<ref name=":3" /> Later that year the name was changed from ''Diplodium ampliatum'' to ''Pterostylis ampliata'', also by Jones.<ref>{{Cite journal |last=Jones |first=David L. |date=2019 |title=New combinations in Australian Orchidaceae |url=https://www.biodiversitylibrary.org/page/61833428 |journal=Australian Orchid Review |volume=84 |issue=6 |pages=42 |issn=0045-0782 |via=]}}</ref> Earlier publications which recognised this species as being separate from ''P revoluta'' often referred to it by the name ''Pterostylis'' sp. aff. ''revoluta'', in reference to its similarity to ''P. revoluta''.<ref name=":3" /> | ] initially described ''Pterostylis ampliata'' under the name ''Diplodium ampliatum'' in 2019 based on a ] collected in 1989 from ], New South Wales. The ] was derived from the ] word ''ampliatus'', meaning 'enlarged', in reference to the species' larger flowers when compared with those of ''Pterostylis revoluta''.<ref name=":3" /> Later that year the name was changed from ''Diplodium ampliatum'' to ''Pterostylis ampliata'', also by Jones.<ref>{{Cite journal |last=Jones |first=David L. |date=2019 |title=New combinations in Australian Orchidaceae |url=https://www.biodiversitylibrary.org/page/61833428 |journal=Australian Orchid Review |volume=84 |issue=6 |pages=42 |issn=0045-0782 |via=]}}</ref> Earlier publications which recognised this species as being separate from ''P. revoluta'' often referred to it by the name ''Pterostylis'' sp. aff. ''revoluta'', in reference to its similarity to ''P. revoluta''.<ref name=":3" /> | ||
| == References == | == References == | ||
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Latest revision as of 02:57, 26 December 2024
Species of orchid| Pterostylis ampliata | |
|---|---|
| |
| Near Suggan Buggan | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Cranichideae |
| Genus: | Pterostylis |
| Species: | P. ampliata |
| Binomial name | |
| Pterostylis ampliata (D.L.Jones) D.L.Jones | |
| Synonyms | |
|
Diplodium ampliatum D.L.Jones | |
Pterostylis ampliata, commonly known as the large autumn greenhood, is a species of greenhood orchid endemic to eastern Australia. It is similar in appearance to Pterostylis revoluta, a related species restricted to Queensland and New South Wales.
Description
Pterostylis ampliata is a herbaceous terrestrial orchid with a basal rosette of 3–4 ovate or oblong leaves. When flowering, this basal rosette dies back, and a single large, forward-leaning flower appears on a stalk measuring up to 25 cm (9.8 in) tall. The flower is primarily green and white striped with some suffuse red-brown colouration and a sickle-shaped galea, measuring 4.5–7 cm (1.8–2.8 in) long. Flowering occurs from February to June, depending on location.
Distribution and habitat
Pterostylis ampliata is a widespread species occurring in Queensland, New South Wales, Australian Capital Territory, and Victoria. It is most common in drier inland areas and rarer near the coast, growing primarily in sclerophyll forest and woodland where well-draining soils are present. It is capable of growing on ridges, slopes, and flats, often on bare, skeletal soil.
Taxonomy and naming
David L. Jones initially described Pterostylis ampliata under the name Diplodium ampliatum in 2019 based on a type specimen collected in 1989 from Conimbla National Park, New South Wales. The specific epithet was derived from the Latin word ampliatus, meaning 'enlarged', in reference to the species' larger flowers when compared with those of Pterostylis revoluta. Later that year the name was changed from Diplodium ampliatum to Pterostylis ampliata, also by Jones. Earlier publications which recognised this species as being separate from P. revoluta often referred to it by the name Pterostylis sp. aff. revoluta, in reference to its similarity to P. revoluta.
References
- "Pterostylis ampliata". APNI. Retrieved 5 January 2023.
- ^ Jeanes, Jeffrey; Backhouse, Gary (2006). Wild Orchids of Victoria, Australia. Aquatic Photographics. p. 160. ISBN 0-9775372-0-X. OCLC 75489661.
- ^ Stajsic, Val. "Pterostylis ampliata". VicFlora. Royal Botanic Gardens Victoria. Retrieved 5 January 2023.
- ^ Jones, David L.; Renner, Matt A.M. "Pterostylis ampliata". New South Wales Flora Online. National Herbarium of New South Wales. Retrieved 5 January 2023.
- ^ Jones, David L. (2019). "Characterisation of Diplodium revolutum (R.Br.) D.L.Jones & M.A.Clem. and the description of two new similar species". Australian Orchid Review. 84 (4): 34–37. ISSN 0045-0782 – via Biodiversity Heritage Library.
- Jones, David L. (2019). "New combinations in Australian Orchidaceae". Australian Orchid Review. 84 (6): 42. ISSN 0045-0782 – via Biodiversity Heritage Library.
| Taxon identifiers | |
|---|---|
| Pterostylis ampliata | |
| Diplodium ampliatum | |