|Caladenia gracilis growing in Glenlyon|
Caladenia gracilis, commonly known as musky caps or musky caladenia, is a plant in the orchid family Orchidaceae and is endemic to eastern and south-eastern Australia, including Tasmania. It is a ground orchid with a single leaf and up to six flowers which are dark-coloured on the back and white on the front, sometimes tinged with pink and with a strong musky or soapy odour. The species is also known as Caladenia moschata in Victoria.
Caladenia gracilis is a terrestrial, perennial, deciduous, herb with an underground tuber and which grows singly or in small groups. It has a single, slightly hairy leaf 60–300 mm (2–10 in) long and 1–6 mm (0.04–0.2 in) wide. Up to six musky or soapy-scented flowers are borne on a spike 120–450 mm (5–20 in) tall. The sepals and petals are white on the front, sometimes tinged with pink or bronze colours and their backs have greenish-brown or purplish glandular hairs. The sepals and petals spread horizontally or slightly downwards. The dorsal sepal is erect, linear in shape, 11–13 mm (0.4–0.5 in) long, 3 mm (0.1 in) wide and curves forward, forming a hood over the column and around its sides. The lateral sepals are 14–16 mm (0.55–0.63 in) long, about 3 mm (0.1 in) wide and the petals are 12–14 mm (0.5–0.6 in) long and 3 mm (0.1 in) wide. The labellum is 5–6 mm (0.20–0.24 in) long and 4–5 mm (0.16–0.20 in) wide and white with red or purplish spots. The sides of the labellum are slightly wavy near its base and have teeth nearer the tip which is strongly curled under and pink. There are four rows of calli along the centre of the labellum. The column has broad, rounded wings and reddish blotches. Flowering is in October and November and is followed by oval-shaped, greenish or reddish capsules 10–14 mm (0.4–0.6 in) long and 3–4 mm (0.1–0.2 in) wide.
Taxonomy and naming
Caladenia gracilis was first formally in 1810 by Robert Brown and the description was published in Prodromus Florae Novae Hollandiae. The specific epithet (gracilis) is a Latin word meaning "slender" or "thin". In Victoria, this orchid is known as Caladenia moschata.
Distribution and habitat
Musky caps occurs in New South Wales, Victoria, Tasmania and South Australia where it grows in open forest, on dry ridges and slopes. In New South Wales it is found south from the New England region, it is widespread in Victoria and Tasmania, and in South Australia it occurs in the south east corner near Millicent, Glencoe and Wrattonbully.
- "Caladenia gracilis". APNI. Retrieved 9 February 2017.
- Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. pp. 46–47. ISBN 1877069124.
- Bernhardt, Peter. "Caladenia gracilis". Royal Botanic Gardens Sydney: plantnet. Retrieved 9 February 2017.
- Jones, David L. (1998). "Contributions to Tasmanian Orchidology - 1". Australian Orchid Research. 3: 32–33.
- Mayfield, Enid (2010). Flora of the Otway plain & ranges (2nd ed.). Collingwood, VIC: CSIRO Publishing. p. 79. ISBN 9780643098046.
- "Caladenia gracilis". State Herbarium of South Australia: efloraSA. Retrieved 9 February 2017.
- Brown, Robert (1810). Prodromus Florae Novae Hollandiae. London. p. 324. Retrieved 9 February 2017.
- Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 376.
- "Caladenia gracilis". Royal Botanic Gardens Victoria: vicflora. Retrieved 9 February 2017.