Thelymitra fragrans

Thelymitra fragrans, commonly called the fragrant sun orchid,[2] is a species of orchid that is endemic to eastern Australia. It has a single glossy, limp leaf and up to eleven strongly scented blue flowers with a deeply notched V-shape on the anther above the column.

Fragrant sun orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Thelymitra
Species:
T. fragrans
Binomial name
Thelymitra fragrans

Description

Thelymitra fragrans is a tuberous, perennial herb with a single limp, glossy, bright green, linear to lance-shaped leaf 80–270 mm (3–10 in) long and 10–22 mm (0.4–0.9 in) wide. Between two and eleven pale blue, pink, mauve or rarely white flowers 25–30 mm (0.98–1.2 in) wide are borne on a flowering stem 150–350 mm (6–10 in) tall. The sepals and petals are 10–15 mm (0.4–0.6 in) long and 4–7 mm (0.2–0.3 in) wide. The column is white, 6–7 mm (0.24–0.28 in) long and 3–4 mm (0.1–0.2 in) wide. The lobe on the top of the anther is yellowish brown to deep red, tube-shaped and curved with a deep V-shaped notch. The side lobes have tufts of white hairs in an almost spherical shape. The flowers are insect-pollinated, strongly scented and open in hot weather. Flowering occurs from August to October.[2][3][4]

Taxonomy and naming

Thelymitra fragrans was first formally described in 1988 by David Jones and Mark Clements from a specimen collected in the Lamington National Park and the description was published in Austrobaileya.[5][6] The specific epithet (fragrans) is a Latin word meaning "smelling agreeably",[7] referring to "the strong floral fragrance".[6]

Distribution and habitat

The fragrant sun orchid grows in rocky places in open forest, often near streams and is often found growing in clumps of Dendrobium kingianum. It occurs mainly between the Blackall Range in Queensland and Werrikimbe National Park in New South Wales but also in the Carnarvon Range further north in Queensland and sometimes as far south as Sydney.[2][4][6]

References
  1. "Thelymitra fragrans". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  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. 241. 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: 13–14. Retrieved 11 May 2018.
  4. Bernhardt, Peter. "Thelymitra fragrans". Royal Botanic Garden Sydney. Retrieved 11 May 2018.
  5. "Thelymitra fragrans". APNI. Retrieved 11 May 2018.
  6. Jones, David L. (1988). "New orchid taxa from south-eastern Queensland". Austrobaileya. 2 (5): 550–552.
  7. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 352.
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