Genoplesium anthracinum

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Black midge 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: Genoplesium
Species:
G. anthracinum
Binomial name
Genoplesium anthracinum
Synonyms [1]

Corunastylis anthracinaD.L.Jones

Genoplesium anthracinum, commonly known as the black midge orchid is a species of small terrestrial orchid endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to thirty small, coal black flowers. It grows in heath in coastal and near-coastal parts of the Northern Rivers area.

Contents

Description

Genoplesium anthracinum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single thin leaf 100–200 mm (4–8 in) long and fused to the flowering stem with the free part 15–28 mm (0.6–1 in) long. Between eight and thirty coal black flowers are arranged along a flowering stem 15–40 mm (0.6–2 in) tall and taller than the leaf. The flowers are about 4 mm (0.2 in) long and 5 mm (0.2 in) wide and are inverted so that the labellum is above the column rather than below it. The dorsal sepal is about 4 mm (0.16 in) long and 3.5 mm (0.1 in) wide with hairless edges. The lateral sepals are about 6 mm (0.2 in) long, 1.5 mm (0.06 in) wide, have a prominent gland on the pointed tip and spread widely apart from each other. The petals are about 2.5 mm (0.1 in) long, 1 mm (0.04 in) wide with hairless edges and spread widely apart from each other. The labellum is about 2.5 mm (0.1 in) long, 1 mm (0.04 in) wide, with an irregular margin and a sharply pointed tip. There is a callus in the centre of the labellum and extending nearly to its tip. Flowering occurs in April and May. [2] [3]

Taxonomy and naming

The black midge orchid was first formally described in 2006 by David Jones who gave it the name Corunastylis anthracina and published the description in Australian Orchid Research. [4] In 2014, Julian Shaw changed the name to Genoplesium anthracinum. [5] The specific epithet (anthracinum) means "coal black". [6]

Distribution and habitat

Genoplesium anthracinum grows in heath, often colonising disturbed sites and is found between Byron Bay and Wardell. [2] [3]

Related Research Articles

<i>Genoplesium morrisii</i> Species of orchid

Genoplesium morrisii, commonly known as the bearded midge orchid and known as Corunastylis morrisii in Australia, is a small terrestrial orchid endemic to south-eastern Australia. It has a single thin leaf fused to the flowering stem and up to fifteen small, dark purplish-black or green and purple flowers.

<i>Genoplesium archeri</i> Species of orchid

Genoplesium archeri, commonly known as the elfin midge orchid and as Corunastylis archeri in Australia, is a small terrestrial orchid endemic to south-eastern Australia. It has a single thin leaf fused to the flowering stem and up to fifteen small, hairy, yellowish green flowers with purple stripes. It grows in a wide range of habitats in New South Wales, Victoria and Tasmania.

<i>Genoplesium arrectum</i> Species of orchid

Genoplesium arrectum, commonly known as the erect midge orchid and as Corunastylis arrecta in Australia, is a small terrestrial orchid endemic to south-eastern Australia. It has a single thin leaf fused to the flowering stem and up to twenty small, dark purple flowers. It grows in a montane and subalpine grassland and forest in Victoria and the Australian Capital Territory.

Genoplesium littorale, commonly known as the Tuncurry midge orchid, is a species of small terrestrial orchid endemic that is endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to thirty small green flowers with a purple-brown labellum. It is only known from fewer than two thousand plants in a small area on the New South Wales North Coast and is critically endangered.

<i>Genoplesium apostasioides</i> Species of orchid

Genoplesium apostasioides, commonly known as the freak midge orchid, is a small terrestrial orchid endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to fifteen small, yellowish green flowers with a reddish labellum. The flowers do not open widely and are self-pollinating. It grows in heath and shallow moss gardens on rock ledges from the Blue Mountains to Nerriga.

Genoplesium bishopii, commonly known as the Gibraltar Range midge orchid, is a small terrestrial orchid endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to thirty small, dark purplish red flowers. It grows in heathy forest and on the edges of swamps in the Gibraltar Range National Park.

Genoplesium brachystachyum, commonly known as the Rocky Cape midge orchid or short-spike midge orchid, is a species of small terrestrial orchid endemic to Tasmania. It has a single thin leaf fused to the flowering stem and up to twelve small, green to brownish green, and reddish flowers. It usually grows in heath in rocky places near the coast.

Genoplesium citriodorum, commonly known as the lemon-scented midge orchid is a species of small terrestrial orchid that is endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to thirty three small, lemon scented, dark purplish black flowers. It usually grows under shrubs in shallow sandstone soil in the Blue Mountains.

Genoplesium cranei, commonly known as the Blackall Range midge orchid, is a small terrestrial orchid endemic to the Blackall Range in Queensland. It has a single thin leaf fused to the flowering stem and up to twenty small, green to greenish yellow flowers with reddish markings. It grows in open forest with shrubs and grasses.

Genoplesium eriochilum, commonly known as the Mount Wilson midge orchid, is a species of small terrestrial orchid endemic to the Blue Mountains. It has a single thin leaf fused to the flowering stem and up to twenty small, crowded, dark purplish brown flowers. It usually grows between low shrubs and sedges.

Genoplesium firthii, commonly known as Firth's midge orchid, is a species of small terrestrial orchid endemic to Tasmania. It has a single thin leaf fused to the flowering stem and up to six small, yellowish green or reddish flowers with a red labellum. It grows in coastal heath and scrub and is currently only known from a single population of about twelve plants near Coles Bay.

Genoplesium oliganthum, commonly known as the Mongarlowe midge orchid is a species of small terrestrial orchid which is endemic to New South Wales. It has a single thin leaf and up to nine greenish brown to reddish flowers with a purplish labellum. It grows with grasses and shrubs on the Southern Tablelands.

<i>Genoplesium pumilum</i> Species of orchid

Genoplesium pumilum, commonly known as the green midge orchid in Australia, and the yellow gumland leek orchid in New Zealand is a small terrestrial orchid native to south-eastern Australia and New Zealand. It has a single thin leaf fused to the flowering stem and up to twenty five green to yellowish-green flowers which sometimes have red markings. Australian and New Zealand authorities use the name Corunastylis pumila.

<i>Genoplesium rhyoliticum</i> Species of orchid

Genoplesium rhyoliticum, commonly known as the Pambula midge-orchid or rhyolite midge orchid and as Corunastylis rhyolitica in Australia, is a species of orchid endemic to New South Wales. It is a small orchid with up to eighteen dark, purplish-black flowers and is only known from six sites on the south coast where it grows in shallow soil over rhyolite.

Genoplesium sagittiferum, commonly known as the horned midge orchid, is a species of small terrestrial orchid that is endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to ten small, yellowish-green flowers with a hairy reddish labellum.

Genoplesium sigmoideum, commonly known as the Dave's Creek midge orchid, is a species of small terrestrial orchid that is endemic to a small area in the Lamington National Park in Queensland. It has a single thin leaf fused to the flowering stem and up to twenty dark red flowers with a hairy labellum. The species is treated as Corunastylis sigmoidea in Queensland.

Genoplesium tectum, commonly known as the Cardwell midge orchid, is a small terrestrial orchid endemic to a small area in north-eastern Queensland. It has a single thin leaf fused to the flowering stem and up to thirty light red flowers with a dark reddish-black, hairy labellum.

Genoplesium turfosum, commonly known as the alpine midge orchid, is a small terrestrial orchid endemic to a small area in the higher parts of New South Wales. It has a single thin leaf fused to the flowering stem and up to twenty five dark purplish-red, crowded flowers with a sparsely hairy labellum.

Genoplesium validum, commonly known as the Blackdown midge orchid, is a species of small terrestrial orchid that is endemic to the Blackdown Tableland National Park in Queensland. It has a single thin leaf fused to the flowering stem and up to thirty five greenish-brown flowers with reddish stripes and a hairy labellum. This species is treated as Corunastylis valida in Queensland.

Corunastylis densa, commonly known as the dense midge orchid, is a small terrestrial orchid endemic to eastern Australia. It has a single thin leaf fused to the flowering stem and up to twenty five densely crowded reddish-brown to dark purplish-brown flowers. It is found between the New England National Park and the Moroka River.

References

  1. 1 2 "Genoplesium anthracinum". Australian Plant Census. Retrieved 23 June 2021.
  2. 1 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. 184. ISBN   1877069124.
  3. 1 2 Jones, David L. "Genoplesium anthracinum". Royal Botanic Garden Sydney. Retrieved 28 January 2018.
  4. "Corunastylis anthracina". APNI. Retrieved 28 January 2018.
  5. "Genoplesium anthracinum". APNI. Retrieved 28 January 2018.
  6. William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 370.