Prasophyllum incorrectum

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Golfer's leek orchid
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Subtribe: Prasophyllinae
Genus: Prasophyllum
Species:
P. incorrectum
Binomial name
Prasophyllum incorrectum

Prasophyllum incorrectum, commonly known as the golfer's leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, dark green leaf and up to twenty scented, yellowish-green and reddish-brown flowers. The largest population occurs on a golf course.

Contents

Description

Prasophyllum incorrectum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single tube-shaped, dark green leaf which is 120–300 mm (5–10 in) long and 3–5 mm (0.1–0.2 in) wide near its reddish-purple base. Between ten and twenty fragrant, yellowish-green and reddish-brown flowers are arranged along a flowering spike which is 50–100 mm (2–4 in) long. The flowers are 7–9 mm (0.3–0.4 in) wide and as with other leek orchids, are inverted so that the labellum is above the column rather than below it. The dorsal sepal is linear to egg-shaped, 7–9 mm (0.3–0.4 in) long, about 3 mm (0.1 in) wide and the lateral sepals are linear to lance-shaped, 7–9 mm (0.3–0.4 in) long, about 2 mm (0.08 in) wide and sometimes joined, other times free from each other. The petals are linear to lance-shaped, 7–9 mm (0.3–0.4 in) long, about 1 mm (0.04 in) wide and green with brown streaks. The labellum is broadly egg-shaped, 6–8 mm (0.2–0.3 in) long, about 4 mm (0.2 in) wide and turns sharply upwards near its middle, often reaching between the lateral sepals. The edges of the upturned part of the labellum are slightly wavy and there is a raised, fleshy green callus in its centre. Flowering occurs in October and November. [2] [3]

Taxonomy and naming

Prasophyllum incorrectum was first formally described in 2003 by David Jones from a specimen collected on the Campbell Town golf course and the description was published in Muelleria. [1] The specific epithet (incorrectum) refers to the species having been previously described as included in Prasophyllum correctum . [2]

Distribution and habitat

The golfer's leek orchid grows in moist grassland and in grassy places in woodland. It is only known from three populations in Campbell Town, the largest of which occurs on the local golf course. [2] [4]

Conservation

Prasophyllum incorrectum is listed as "Critically Endangered" under the Commonwealth Government Environment Protection and Biodiversity Conservation Act 1999 (EPBC) Act and as "Endangered" under the Tasmanian Threatened Species Protection Act 1995 . The main threats to the population are land clearing and the conversion of native grassland to exotic species. [3] [4]

Related Research Articles

Prasophyllum correctum, commonly known as the gaping leek orchid or Bairnsdale leek orchid, is a species of orchid species endemic to a small region in Victoria. It has a single dark green, tube-shaped leaf and up to twenty strongly scented, yellowish-green flowers and is only known from railway reserves near Bairnsdale.

<i>Prasophyllum alpinum</i> Species of orchid

Prasophyllum alpinum, commonly known as the alpine leek orchid, is a species of orchid endemic to Tasmania. It was formerly described as occurring in mainland Australia but has smaller flowers than the species occurring there. It has a single, tube-shaped leaf and up to fourteen green to greenish-brown flowers and grows in subalpine areas.

<i>Prasophyllum alpestre</i> Species of orchid

Prasophyllum alpestre, commonly known as the mauve leek orchid, is a species of orchid endemic to eastern Australia. It has a single tubular, green leaf and up to twenty five scented, white, purplish and green flowers. It grows in subalpine parts of New South Wales, Victoria and Tasmania.

Prasophyllum amoenum, commonly known as the dainty leek orchid or Snug leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, green leaf with a purplish base and between five and twelve light green, dark brown and white flowers. In 2007, the entire population was estimated to be about 600 plants.

<i>Prasophyllum petilum</i> Species of orchid

Prasophyllum petilum, commonly known as the Tarengo leek orchid, is a species of orchid endemic to eastern Australia. It has a single tubular, green leaf and up to eighteen pinkish mauve to greenish flowers, well-spaced along a slender flowering stem. It is a small orchid, difficult to locate, generally growing in taller grasses.

<i>Prasophyllum sphacelatum</i> Species of orchid

Prasophyllum sphacelatum, commonly known as the subalpine leek orchid, is a species of orchid endemic to south-eastern Australia. It has a single tubular, dull green leaf and up to eighteen scented, green to brownish flowers with a green to pinkish labellum. It grows in subalpine areas of New South Wales, Victoria and Tasmania.

Prasophyllum barnettii, commonly known as the Anglesea leek orchid, is a species of orchid endemic to Victoria. It has a single tubular leaf and between twelve and thirty scented yellowish, reddish or brownish flowers and is only known from a small area in the south of the state.

<i>Prasophyllum colensoi</i> Species of orchid

Prasophyllum colensoi is a species of orchid endemic to New Zealand where it is commonly known as the leek orchid. It has a single tubular, dark green leaf and up to twenty scented, yellowish-green to reddish-brown flowers. It is similar to P. hectori, the only other species of Prasophyllum found in New Zealand, but is distinguished from it by its smaller size, fewer flowers and different habitat.

Prasophyllum crebriflorum, commonly known as the crowded leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, dark green leaf with a purplish base and up to twenty five reddish-brown flowers. It is only known from four relatively small populations growing at high altitudes.

<i>Prasophyllum dossenum</i> Species of orchid

Prasophyllum dossenum is a species of orchid endemic to a small area of northern New South Wales. It has a single tubular, dark green leaf and up to thirty scented pinkish-white and greenish-brown flowers crowded along an erect flowering stem. It is a rare orchid which grows in grassy places on the Northern Tablelands of New South Wales.

Prasophyllum fosteri, commonly known as the Shelford leek orchid, is a species of orchid endemic to a small region of Victoria. It has a single tubular green leaf and up to twenty five green to reddish-brown flowers. It is a very rare orchid, only known from a single population on a roadside.

Prasophyllum milfordense is a species of orchid endemic to Tasmania. It has a single tubular, dark green leaf and up to thirty greenish-brown, white and purplish flowers. It is a very rare orchid, only found in a single location with a population of around 240 plants.

Prasophyllum olidum, commonly known as the pungent leek orchid is a species of orchid endemic to Tasmania. It has a single tubular, green to yellowish-green leaf and up to thirty bright green to brownish-green flowers. It is a very rare orchid, only found in a single location with a population which fluctuates from three to two hundred flowering plants.

Prasophyllum perangustum, commonly known as the Knocklofty leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, dark green leaf and up to fifteen greenish or light brown flowers with a white labellum. It is a very rare orchid with only six plants recorded in 1993.

Prasophyllum suaveolens, commonly known as the fragrant leek orchid, is a species of orchid species endemic to inland Victoria. It has a single bright green, tube-shaped leaf with a reddish base and up to twenty five green to yellowish-green flowers with red markings. The flowers are the smallest of any leek orchid found in Victoria.

<i>Prasophyllum tunbridgense</i> Species of orchid

Prasophyllum tunbridgense, commonly known as the Tunbridge leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, bright green leaf and up to twenty five relatively large, green to light greenish-brown flowers with white petals and a large white labellum.

Prasophyllum uvidulum, commonly known as the summer leek orchid, is a species of orchid endemic to Victoria. It has a single, tubular leaf and up to twenty five scented, pale green flowers with reddish markings and is only known from a swamp in the north-east of the state.

Prasophyllum catenemum is a species of orchid endemic to South Australia. It has a single tubular leaf and up to twenty white and green to purplish flowers. It is only known from a small area of the coast of the state where it grows in shrubland which is often engulfed by uynstable sand dunes.

Prasophyllum abblittiorum is a species of orchid endemic to Tasmania. It has a single tubular, green leaf and up to twelve yellowish green flowers with faint streaks. It is an unusual prasophyllum in that the labellum is not ornamented. Only about 100 plants are known, growing at two sites in the Arthur-Pieman Conservation Area.

Prasophyllum brevisepalum is a species of orchid endemic to New South Wales. It has a single tubular, shiny dark green leaf and up to thirty five scented, yellowish to brownish green and white flowers. It is only known from a single population growing in woodland near Inverell.

References

  1. 1 2 "Prasophyllum incorrectum". APNI. Retrieved 21 November 2017.
  2. 1 2 3 Jones, David L. (2003). "A revisionary treatment of four species of Prasophyllum R.Br. (Orchidaceae) loosely related to P. correctum D.L.Jones" (PDF). Muelleria. 18: 104–108. Retrieved 21 November 2017.
  3. 1 2 "Listing Statement for Prasophyllum incorrectum (golfers leek-orchid)" (PDF). Government of Tasmania Department of Primary Industries, Parks, Water and Environment. Retrieved 21 November 2017.
  4. 1 2 "Approved conservation advice for Prasophyllum incorrectum (golfer's leek orchid)" (PDF). Australian Government Department of the Environment. Retrieved 21 November 2017.