Thelymitra imbricata

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Broad sun orchid
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Thelymitra
Species:
T. imbricata
Binomial name
Thelymitra imbricata
Synonyms
  • Thelymitra nuda var. grandiflora Lindl.

Thelymitra imbricata, commonly called the broad sun orchid, [2] is a species of orchid that is endemic to Tasmania. It has a single erect, channelled leaf and up to fifteen or more pale to dark or purplish blue, relatively large flowers.

Contents

Description

Thelymitra imbricata is a tuberous, perennial herb with a single erect, fleshy, channelled, light green, linear to lance-shaped leaf 200–300 mm (8–10 in) long and 20–30 mm (0.8–1 in) wide with a purplish base. Between three and fifteen or more pale to dark or purplish blue flowers 25–35 mm (0.98–1.4 in) wide are arranged on a flowering stem 150–600 mm (6–20 in) tall. The sepals and petals are 12–20 mm (0.5–0.8 in) long and 5–10 mm (0.2–0.4 in) wide. The column is white, bluish or pinkish, 5–7 mm (0.2–0.3 in) long and 2.5–4 mm (0.1–0.2 in) wide. The lobe on the top of the anther is about 3 mm (0.1 in) long and 2 mm (0.08 in) wide, brown or orange brown with a narrow blue band, gently curved with an inflated hood and a V-shaped notch. The side lobes are finger-like and have dense, toothbrush-like tufts of white hairs. Flowering occurs from late October to early December. The flowers are long-lasting, insect pollinated and open on warm sunny days. [2] [3]

Taxonomy and naming

Thelymitra imbricata was first formally described in 1998 by David Jones and the description was published in Australian Orchid Research. The name replaced the synonym Thelymitra nuda var. grandiflora Lindl. . [4] The specific epithet (imbricata) is a Latin word meaning "overlapping like roofing-tiles and shingles". [5]

Distribution and habitat

The broad sun orchid usually grows in a range of habitats including open forest, scrubland, grassland and heath in the Tasmanian midlands. [2] [6]

Related Research Articles

<i>Thelymitra nuda</i> Species of orchid

Thelymitra nuda, commonly known as the plain sun orchid is a species of orchid that is endemic to eastern Australia. It has a single fleshy, channelled leaf and up to twelve dark blue to purplish, sometimes white or pinkish flowers with white tufts on top of the anther. It grows in a range of habitats and sometimes forms large colonies.

<i>Thelymitra alcockiae</i> Species of orchid

Thelymitra alcockiae, commonly called Kath's sun orchid, is a species of orchid that is endemic to southern continental Australia. It has a single long, narrow leaf and up to twelve pale blue to deep purplish blue flowers, mauve or reddish on their back side.

<i>Thelymitra megacalyptra</i> Species of orchid

Thelymitra megacalyptra, known as Thelymitra megcalyptra in Australia, and commonly known as plains sun orchid, is a species of orchid that is endemic to eastern Australia. It has a single erect, fleshy leaf and up to fifteen blue to purplish, sometimes lilac, pink or white flowers with white tufts on top of the anther.

Thelymitra queenslandica, commonly called the northern sun orchid, is a species of orchid that is endemic to Queensland. It has a single long, grass-like leaf and up to fifteen dark blue to purplish, sometimes white or pinkish flowers with white or pink tufts on top of the anther. It is readily distinguished by its northerly distribution and early flowering period.

Thelymitra albiflora, commonly called the white sun orchid, is a species of orchid that is endemic to South Australia. It has a single erect, narrow, fleshy leaf and up to ten relatively small white flowers with white toothbrush-like tufts on top of the anther.

Thelymitra bracteata, commonly called the leafy sun orchid or large-bracted sum orchid, is a species of orchid that is endemic to south-eastern Australia. It has a single leathery, more or less flat leaf and up to thirty pale blue flowers that are greenish on the back. The bracts are larger than on similar sun orchids.

<i>Thelymitra brevifolia</i> Species of orchid

Thelymitra brevifolia, commonly called the peppertop sun orchid or short-leaf sun orchid, is a species of orchid that is endemic to south-eastern Australia. It has a single erect, relatively short and broad, dark green leaf and up to twenty purplish or purplish blue flowers. It is a common and widespread self-pollinating species occurring in a wide range of habitats.

<i>Thelymitra graminea</i> Species of orchid

Thelymitra graminea, commonly called the shy sun orchid, is a species of orchid in the family Orchidaceae and is endemic to the south-west of Western Australia. It has a single leathery, channelled leaf and up to ten relatively small blue, self-pollinating flowers with white, toothbrush-like tufts on the top of the anther.

<i>Thelymitra granitora</i> Species of orchid

Thelymitra granitora, commonly called the coastal granite sun orchid or coastal sun orchid, is a species of orchid in the family Orchidaceae and is endemic to the south-west of Western Australia. It has a single short, curved and channelled dark green leaf and up to eight relatively large pale blue or white, self-pollinating flowers with white mop-like tufts on the top of the anther.

<i>Thelymitra holmesii</i> Species of orchid

Thelymitra holmesii, commonly called the blue star sun orchid, is a species of orchid that is endemic to south-eastern Australia. It has a single long, narrow, fleshy leaf and up to nine purplish blue to mauve flowers with a deeply notched lobe on top of the anther.

Thelymitra viridis, commonly called the green sun orchid, is a species of orchid that is endemic to Tasmania. It has a single erect, fleshy, channelled leaf and up to seven small self-pollinating pale blue to pale purplish flowers. The rest of the plant is a pale green colour.

<i>Thelymitra mucida</i> Species of orchid

Thelymitra mucida, commonly called the plum sun orchid or plum orchid, is a species of orchid that is endemic to southern Australia. It has a single erect, fleshy, linear leaf and up to six blue, purplish or plum coloured flowers with a thick, sticky secretion on the anther lobe.

Thelymitra silena, commonly called the madonna sun orchid, is a species of orchid that is endemic to Tasmania. It has a single thick, fleshy, channelled leaf and up to fifteen pale blue flowers with an almost spherical yellow lobe on top of the anther.

<i>Thelymitra improcera</i> Species of orchid

Thelymitra improcera, commonly called the coastal sun orchid, is a species of orchid that is endemic to south-eastern Australia. It has a single erect, fleshy leaf and up to eight relatively small pale to bright blue flowers on a short flowering stem. The lobe on top of the anther is unusually short and lobed.

<i>Thelymitra latiloba</i> Species of orchid

Thelymitra latiloba, commonly called the wandoo sun orchid or wandoo shirt orchid, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, fleshy, channelled, dark green leaf and up to twelve blue flowers with darker blue veins and sometimes flushed with mauve. The lobe on top of the anther is wavy.

Thelymitra occidentalis, commonly called the western azure sun orchid or rimmed orchid, is a species of orchid in the family Orchidaceae and is endemic to the south-west of Australia. It has a single erect, fleshy, channelled, dark green leaf and up to fifteen blue flowers with darker blue veins and sometimes flushed with pink. The lobe on top of the anther has a wavy, yellow crest.

Thelymitra erosa, commonly called the striped sun orchid, is a species of orchid that is endemic to Tasmania. It has a single erect, fleshy dark green leaf and up to eight moderately large dark blue to purplish or pink flowers with darker veins. The column arms have irregular lobes.

<i>Thelymitra alpina</i> Species of orchid

Thelymitra alpina, commonly known as the mountain sun orchid, is a species of orchid that is endemic to south-eastern Australia. It has a single dark green leaf with a purplish base and up to twenty, usually blue to purplish flowers. It grows in alpine, subalpine and montane areas of New South Wales, the Australian Capital Territory and Victoria.

<i>Thelymitra glaucophylla</i> Species of orchid

Thelymitra glaucophylla is a species of orchid that is endemic to South Australia. It has a single erect, channelled, pale green leaf and up to fifteen pale blue, mauve or white flowers with an inflated, greyish lobe on top of the anther.

Thelymitra paludosa, commonly known as the plain sun orchid, is a species of orchid that is endemic to Western Australia. It has a single erect, channelled, dark green leaf and up to ten or more blue to violet flowers. It grows in higher rainfall areas near the south coast.

References

  1. "Thelymitra imbricata". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. 1 2 3 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 230. ISBN   1877069124.
  3. Jeanes, Jeffrey A. (2013). "An overview of the Thelymitra nuda (Orchidaceae) complex in Australia including the description of six new species" (PDF). Muelleria. 31: 16–17. Retrieved 12 May 2018.
  4. "Thelymitra imbricata". APNI. Retrieved 12 May 2018.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 434.
  6. Jones, David L. (1998). "Contributions to Tasmanian Orchidology". Australian Orchid Research. 3: 186–187.