Caladenia interanea

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Inland spider orchid
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species:
C. interanea
Binomial name
Caladenia interanea
Synonyms [1]

Arachnorchis interanea D.L.Jones

Caladenia interanea, commonly known as the inland spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the Eyre Peninsula in South Australia. It is a ground orchid with a single hairy leaf and a single green flower with dark red stripes.

Contents

Description

Caladenia interanes is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, which is 40–180 mm (2–7 in) long and 5–12 mm (0.2–0.5 in) wide. A single green flower with dark red stripes is borne on a thin flowering stem 160–650 mm (6–30 in) tall. The sepals have thin, brown glandular tips 4–10 mm (0.2–0.4 in) long. The dorsal sepal is erect or curves forward and is 35–50 mm (1–2 in) long and 3–4 mm (0.1–0.2 in) wide. The lateral sepals are 30–40 mm (1–2 in) long and 4–5 mm (0.16–0.20 in) wide, curve downwards and are nearly parallel to each other. The petals are 24–33 mm (0.9–1 in) long, about 2 mm (0.08 in) wide and curve downwards. The labellum is 14–17 mm (0.6–0.7 in) long and 17–20 mm (0.7–0.8 in) wide and is green with a dark maroon tip. The tip of the labellum curls under and there are between two and four pairs of thin green teeth up to 8 mm (0.3 in) long on the sides. There are four densely crowded rows of calli up to 5 mm (0.2 in) long along the mid-line of the labellum. Flowering occurs from August to October. [2]

Taxonomy and naming

The inland spider orchid was first formally described in 2005 by David Jones, who gave it the name Arachnorchis interanea and published the description in The Orchadian from a specimen collected in the Gawler Ranges. [3] In 2008, Robert Bates changed the name to Caladenia interanea. [1] [4] The specific epithet (interanea) is a Latin word meaning "inward", "interior" or "internal". [5]

Distribution and habitat

Caladenia interanea occurs in the Eyre Peninsula region, especially the Gawler Ranges where it grows in rocky places. [2] [6]

Related Research Articles

<i>Caladenia ampla</i> Species of orchid

Caladenia ampla, commonly known as the dainty spider orchid, 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.

<i>Caladenia cardiochila</i> Species of orchid

Caladenia cardiochila, commonly known as thick-lipped spider-orchid, fleshy-lipped caladenia and heartlip spider-orchid, is a plant in the orchid family Orchidaceae and is endemic to Victoria and South Australia. It is a ground orchid with a single hairy leaf and one or two yellowish-green, red-striped flowers on a thin, wiry stem.

Caladenia leptochila subsp. dentata, commonly known as the toothed spider orchid, narrow-lipped spider-orchid or narrow-lipped caladenia, is a plant in the orchid family Orchidaceae and is endemic to South Australia. It has a single leaf and one or two mostly reddish-brown flowers. It differs from subspecies leptochila in the colour of its flowers, toothed edges to its labellum, and its distribution.

Caladenia macroclavia, commonly known as the large-club spider orchid, or brown bayonets, is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single hairy leaf and a single green to yellowish-green flower with dark red central stripes. It is a rare species and in 2006 the total population was estimated to be between 35 and 80 mature plants.

Caladenia necrophylla, commonly known as late green-comb spider orchid, is a species of orchid endemic to South Australia. It has a single leaf and a single yellowish-green flower with red lines along the sepals and petals. It is unusual in that the leaf has completely withered before the flower opens, and sometimes even before the flower spike appears.

<i>Caladenia oenochila</i> Species of orchid

Caladenia oenochila, commonly known as the red-lipped spider orchid, or wine-lipped spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Victoria. It is a ground orchid with a single leaf and usually only one pale yellow-green flower with purple marks and a dark red labellum.

Caladenia oreophila is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It is a ground orchid with a single leaf and a single greenish-cream flower with pale red stripes a red labellum with a greenish-cream base.

Caladenia osmera is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It is a ground orchid with a single leaf and one or two greenish-cream flowers with pink stripes and which has a sharp odour resembling burnt plastic.

Caladenia peisleyi is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It is a ground orchid with a single leaf and a single greenish-yellow flower with pale red stripes. It is difficult to distinguish from several other Caladenia species.

<i>Caladenia phaeoclavia</i> Species of orchid

Caladenia phaeoclavia, commonly known as the brown-clubbed spider orchid is a species of orchid endemic to New South Wales. It has a single, hairy leaf and a single light to dark green flower with red stripes and thick, brownish club-like tips on the sepals.

<i>Caladenia septuosa</i> Species of orchid

Caladenia septuosa, commonly known as the Koppio spider orchid, is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single erect, sparsely hairy leaf and usually only one greenish-cream flower with red stripes along the sepals and petals.

<i>Caladenia stricta</i> Species of orchid

Caladenia stricta, commonly known as the upright spider orchid or rigid-combed spider-orchid is a plant in the orchid family Orchidaceae and is endemic to southern continental Australia. It is a ground orchid with a single leaf and usually only one pale green flower with red lines along the sepals and petals.

<i>Caladenia tensa</i> Species of orchid

Caladenia tensa, commonly known as the rigid spider orchid is a plant in the orchid family Orchidaceae and is endemic to southern continental Australia. It is a ground orchid with a single leaf and one or two pale green flowers with red stripes. It is mainly only found in the Little Desert National Park in Victoria and in the far south-east of South Australia but there are four records from New South Wales.

<i>Caladenia toxochila</i> Species of orchid

Caladenia toxochila, commonly known as the bow-lip spider orchid is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It is a ground orchid with a single, sparsely hairy leaf and one or two yellowish-green flowers with red stripes. It occurs in Victoria and South Australia and resembles the related Caladenia concinna from New South Wales.

<i>Caladenia villosissima</i> Species of orchid

Caladenia villosissima, commonly known as the hairy spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Victoria. It is a ground orchid with a single densely hairy leaf and a single pale green flower with red stripes along the sepals and petals. It is a poorly known species and there is insufficient information about its distribution and abundance to determine whether or not it is endangered.

Caladenia armata is a plant in the orchid family Orchidaceae and is endemic to the Australian Capital Territory. It has a single dull green leaf with purple blotches near the base, and a single cream-coloured to pink flower with red to maroon markings. It is only known from a single population containing fewer than ten plants.

Caladenia branwhitei, commonly known as the Bethungra spider orchid, is a plant in the orchid family Orchidaceae and is endemic to southern New South Wales. It has a single dull green leaf and one or two, usually dark red to maroon-coloured flowers. It is only known from three areas near Bethungra where it grows in ironbark forest.

Caladenia saxatilis is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single hairy leaf and one or two pale creamy-green flowers, sometimes with thin reddish lines. It occurs in the southern Flinders Ranges.

Caladenia flindersica is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single leaf and one or two cream-coloured flowers with thin dark red to blackish tips on the petals and sepals. It is only known from Alligator Gorge in the Mount Remarkable National Park.

Caladenia zephyra is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid with a single, densely hairy leaf and a single cream-coloured to very pale yellow flower with blackish glandular hairs on the sepals and petals. It occurs on the Eyre Peninsula but may have a wider distribution.

References

  1. 1 2 3 "Caladenia interanea". APNI. Retrieved 10 April 2017.
  2. 1 2 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 91. ISBN   1877069124.
  3. "Arachnorchis interanea". APNI. Retrieved 10 April 2017.
  4. Bates, Robert John (2008). "New combinations in Pterostylis and Caladenia and other name changes in the Orchidaceae of South Australia" (PDF). Journal of the Adelaide Botanic Garden. 22: 102. Retrieved 10 April 2017.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 436.
  6. "Census of South Australian Plants - Caladenia". State Herbarium of South Australia. Retrieved 10 April 2017.