Thelymitra psammophila

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Sandplain sun orchid
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Thelymitra
Species:
T. psammophila
Binomial name
Thelymitra psammophila
Synonyms [1]

Thelymitra psammophila, commonly called the sandplain sun orchid, [2] is a species of orchid in the family Orchidaceae and is endemic to the south-west of Western Australia. It has a single narrow leaf and up to five yellow flowers with an orange anther and brown arms on the side of the column.

Contents

Description

Thelymitra psammophila is a tuberous, perennial herb with a single leaf 50–70 mm (2–3 in) long and 3–5 mm (0.1–0.2 in) wide. Between two and five yellow flowers, 15–20 mm (0.6–0.8 in) wide are borne on a flowering stem 150–250 mm (6–10 in) tall. The sepals and petals are 7–11 mm (0.3–0.4 in) long and 4–5 mm (0.16–0.20 in) wide. The column is yellow, 4–5 mm (0.16–0.20 in) long and about 2.5 mm (0.1 in) wide with triangular brown flanges on its sides. The lobe on the top of the anther brownish with a few short glands on its back. The anther is orange and protrudes between the column flanges. The flowers are strongly scented, insect pollinated and open in sunny weather. Flowering occurs from August to October. [2] [3] [4]

Taxonomy and naming

Thelymitra psammophila was first formally described in 1905 by Cecil Andrews from a specimen he collected near the Kalgan River and the description was published in Journal of the West Australian Natural History Society . [5] The specific epithet (psammophila) is derived from the Ancient Greek ψάμμος (psámmos), meaning “sand” [6] :678 and φίλος (phílos), meaning “dear one" or "friend”. [6] :355

Distribution and habitat

The sandplain sun orchid usually grows in heath and with sedges in winter-wet areas between the Kalgan River and Ravensthorpe. [2] [3] [7] [8]

Conservation

Thelymitra psammophila is classified as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia) and as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 . [7] The main threats to the species are weed invasion, and disturbance from a nearby rubbish tip. [8]

Related Research Articles

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Thelymitra crinita, commonly known as the blue lady orchid, the queen orchid, the lily orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has a single broad, oval leaf and up to fifteen brilliant blue flowers with a blue column with the lobe on top of the anther covered with short, finger-like calli.

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

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

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

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Thelymitra xanthotricha, commonly called the yellow tufted sun orchid or yellow tufted slender sun 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 six relatively large dark blue to purplish flowers.

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

Thelymitra campanulata, commonly called the bell sun orchid or shirt orchid, is a species of orchid in the family Orchidaceae and is endemic to the south-west of Western Australia. It is a common species with a single narrow leaf and up to fifteen distinctly cup-shaped, prominently striped blue or mauve flowers with crowded, finger-like glands on top of the anther.

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

Thelymitra canaliculata, commonly called the flushed sun orchid or blue 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 erect, fleshy leaf and up to twenty eight blue flowers with darker veins and sometimes flushed with pink. The lobe on top of the anther is blackish with a yellow crest.

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 cornicina, commonly called the lilac 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 narrow, pale green leaf and up to eight lilac-tinged blue flowers with the lobe on top of the anther covered with short, finger-like calli.

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

Thelymitra sargentii, commonly called the freckled sun orchid, is a species of orchid in the family Orchidaceae and is endemic to Western Australia. It has a single thick, leathery leaf and up to twenty five strongly scented, lemon yellow flowers with brown blotches. It grows in arid areas but where it receives runoff during rainfall.

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

Thelymitra benthamiana, commonly called the leopard sun orchid or blotched sun orchid, is a species of orchid in the family Orchidaceae and is endemic to Australia. It has a single leathery leaf and up to ten yellowish green flowers with brownish spots, blotches and patterns. The column is yellow with deeply fringed wings and the lobe on top of the anther has a large lump on its top.

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

Thelymitra dedmaniarum, commonly called the cinnamon sun orchid, is a species of orchid in the family Orchidaceae and is endemic to Western Australia. It has a single flat, leathery leaf and up to fifteen cinnamon scented, golden yellow flowers. It is a rare orchid with a restricted distribution.

Thelymitra jacksonii, commonly called the Jackson's sun orchid, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, flat, leathery leaf and up to twelve dark golden brown flowers with yellow streaks and blotches. The column has broad, spreading wings with a wide fringe.

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

Thelymitra magnifica, commonly called the Crystal Brook sun orchid, is a species of orchid in the family Orchidaceae and is endemic to a small area in the south-west of Western Australia. It has a single erect, flat, leathery leaf and up to eight crowded, dark golden brown flowers with yellow streaks and blotches. The column has broad, deeply fringed, yellow or brownish wings.

Thelymitra stellata, commonly called the star orchid or starry 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 erect, flat, leathery leaf and up to twelve brown to reddish brown flowers with yellow streaks and blotches. The column has broad, deeply fringed, orange or yellow wings.

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

Thelymitra yorkensis, commonly called the York sun orchid or bronze sun orchid, is a species of orchid in the family Orchidaceae and is endemic to a small area in the south-west of Western Australia. It has a single erect, flat, leathery leaf and up to twelve crowded, cinnamon scented, orange-coloured flowers with reddish brown edges. The column has broad, deeply fringed, orange wings.

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

Thelymitra apiculata, commonly called Cleopatra's needles, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, curved, dark green leaf with a purplish base and up to twelve purplish flowers with darker blotches and golden yellow edges. There are two yellow arms on the sides of the column, each ending with a needle-like point.

Thelymitra pulcherrima, commonly called the northern Queen of Sheba, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, spiral, dark green leaf with a purplish base and up to seven glossy, variegated flowers with the sepals and petals differing in colour. The petals and sepals and basically reddish or purplish but with streaks and blotches of contrasting colours. There are two bright yellow or orange arms on the sides of the column.

Thelymitra variegata, commonly called the Queen of Sheba, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, spiral, dark green leaf with a purplish base and up to five glossy, variegated reddish, purplish or violet flowers with darker spots and blotches and yellowish margins. There are two bright yellow or orange arms on the sides of the column.

Thelymitra tigrina, commonly called the tiger orchid or tiger sun orchid, is a species of orchid that is endemic to the south-west of Western Australia. It has a single narrow leaf and up to fifteen small yellow flowers with small brown spots.

References

  1. 1 2 "Thelymitra psammophila". 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. pp. 247–248. ISBN   1877069124.
  3. 1 2 Brown, Andrew; Dundas, Pat; Dixon, Kingsley; Hopper, Stephen (2008). Orchids of Western Australia. Crawley, Western Australia: University of Western Australia Press. p. 437. ISBN   9780980296457.
  4. ↑ Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 300. ISBN   9780646562322.
  5. ↑ "Thelymitra psammophila". APNI. Retrieved 30 May 2018.CS1 maint: discouraged parameter (link)
  6. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  7. 1 2 "Thelymitra psammophila". FloraBase . Western Australian Government Department of Parks and Wildlife.
  8. 1 2 "Approved conservation advice for Thelymitra psammophila" (PDF). Australian government Department of the Environment. Retrieved 31 May 2018.CS1 maint: discouraged parameter (link)
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