Caladenia ampla, commonly known as the dainty spider orchid,[2] is a plant in the orchid family Orchidaceae and is endemic to Victoria. It is a ground orchid with a single hairy leaf and a single flower which is sometimes yellowish-green flower with red stripes and sometimes entirely red.
Caladenia ampla is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, 6–10 cm (2–4 in) long and 5–7 mm (0.2–0.3 in) wide.[3]
A single flower (rarely two) is borne on a spike up to 22 cm (9 in) high. The dorsal sepal is erect, oblong to lance-shaped, 30–37 mm (1.2–1.5 in) long and about 3 mm (0.1 in) wide. It tapers near the end which terminates in a glandular structure 6.5–9 mm (0.3–0.4 in) long. The lateral sepals are oblong to lance-shaped, 30–37 mm (1.2–1.5 in) long, 4–5 mm (0.16–0.20 in) wide and end in a gland similar to the one on the dorsal sepal. The petals are 28–32 mm (1.1–1.3 in) long, 2–3 mm (0.08–0.1 in) wide and taper to a point. The labellum is a broad egg-shape, curves forward, 14–16 mm (0.55–0.63 in) long and 10–12 mm (0.4–0.5 in) wide when flattened. The labellum is cream-coloured with red veins and a dark red tip, sometimes entirely red. There are 9 to 12 pairs of calli along the edge of the labellum, decreasing in length towards its front. There are four rows of foot-shaped calli in the centre of the labellum, also smaller towards the tip. Flowering occurs in September and October.[3]
C. ampla labelled
Taxonomy and namingedit
The species was first formally described by David L. Jones in 2006 and given the name Arachnorchis ampla.[4][5] The description was published in Australian Orchid Research. In 2007, Gary Backhouse changed the name to Caladenia ampla and the change was published in "The Victorian Naturalist".[6] The specific epithet (ampla) is a Latin word meaning "large",[7] referring to the unusually broad labellum of this orchid.[5]
This species is classified as "Endangered" by the Victorian government.[2][3]
Referencesedit
^ ab"Caladenia ampla". Australian Plant Census. Retrieved 12 November 2023.
^ ab"Advisory list of rare and threatened plants in Victoria 2014" (PDF). The State of Victoria Department of Environment and Primary Industries. Retrieved 28 September 2016.
^ abcdJeanes, Jeffrey. "Caladenia ampla". Royal Botanic Gardens Victoria: Vicflora. Retrieved 28 September 2016.
^"Arachnorchis ampla". APNI. Retrieved 28 September 2016.
^ abJones, David L. (2006). "New taxa of Australian Orchidaceae". Australian Orchid Research. 5: 50–51.
^"Caladenia ampla". APNI. Retrieved 28 September 2016.
^Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 86.
May 09, 2024
caladenia, ampla, commonly, known, dainty, spider, orchid, plant, orchid, family, orchidaceae, endemic, victoria, ground, orchid, with, single, hairy, leaf, single, flower, which, sometimes, yellowish, green, flower, with, stripes, sometimes, entirely, dainty,. Caladenia ampla commonly known as the dainty spider orchid 2 is a plant in the orchid family Orchidaceae and is endemic to Victoria It is a ground orchid with a single hairy leaf and a single flower which is sometimes yellowish green flower with red stripes and sometimes entirely red Dainty spider orchid Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Monocots Order Asparagales Family Orchidaceae Subfamily Orchidoideae Tribe Diurideae Genus Caladenia Species C ampla Binomial name Caladenia ampla D L Jones G N Backh 1 Synonyms 1 Arachnorchis ampla D L Jones Contents 1 Description 2 Taxonomy and naming 3 Distribution and habitat 4 Conservation 5 ReferencesDescription editCaladenia ampla is a terrestrial perennial deciduous herb with an underground tuber and a single hairy leaf 6 10 cm 2 4 in long and 5 7 mm 0 2 0 3 in wide 3 A single flower rarely two is borne on a spike up to 22 cm 9 in high The dorsal sepal is erect oblong to lance shaped 30 37 mm 1 2 1 5 in long and about 3 mm 0 1 in wide It tapers near the end which terminates in a glandular structure 6 5 9 mm 0 3 0 4 in long The lateral sepals are oblong to lance shaped 30 37 mm 1 2 1 5 in long 4 5 mm 0 16 0 20 in wide and end in a gland similar to the one on the dorsal sepal The petals are 28 32 mm 1 1 1 3 in long 2 3 mm 0 08 0 1 in wide and taper to a point The labellum is a broad egg shape curves forward 14 16 mm 0 55 0 63 in long and 10 12 mm 0 4 0 5 in wide when flattened The labellum is cream coloured with red veins and a dark red tip sometimes entirely red There are 9 to 12 pairs of calli along the edge of the labellum decreasing in length towards its front There are four rows of foot shaped calli in the centre of the labellum also smaller towards the tip Flowering occurs in September and October 3 nbsp C ampla labelledTaxonomy and naming editThe species was first formally described by David L Jones in 2006 and given the name Arachnorchis ampla 4 5 The description was published in Australian Orchid Research In 2007 Gary Backhouse changed the name to Caladenia ampla and the change was published in The Victorian Naturalist 6 The specific epithet ampla is a Latin word meaning large 7 referring to the unusually broad labellum of this orchid 5 Distribution and habitat editCaladenia ampla is only known from the goldfields region of Victoria where it grows in mallee scrub and woodlands 3 Conservation editThis species is classified as Endangered by the Victorian government 2 3 References edit a b Caladenia ampla Australian Plant Census Retrieved 12 November 2023 a b Advisory list of rare and threatened plants in Victoria 2014 PDF The State of Victoria Department of Environment and Primary Industries Retrieved 28 September 2016 a b c d Jeanes Jeffrey Caladenia ampla Royal Botanic Gardens Victoria Vicflora Retrieved 28 September 2016 Arachnorchis ampla APNI Retrieved 28 September 2016 a b Jones David L 2006 New taxa of Australian Orchidaceae Australian Orchid Research 5 50 51 Caladenia ampla APNI Retrieved 28 September 2016 Brown Roland Wilbur 1956 The Composition of Scientific Words Washington D C Smithsonian Institution Press p 86 Retrieved from https en wikipedia org w index php title Caladenia ampla amp oldid 1186250671, wikipedia, wiki, book, books, library,
