Corunastylis leptochila | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Orchidoideae |
Tribe: | Diurideae |
Genus: | Corunastylis |
Species: | C. leptochila |
Binomial name | |
Corunastylis leptochila | |
Corunastylis leptochila is a small terrestrial orchid endemic to Victoria. It has a single thin leaf fused to the flowering stem and up to twenty small reddish-brown to dark purplish flowers. It is known from one population with only six plants in forest near a swamp.
Corunastylis leptochila is a terrestrial, perennial, deciduous, herb with an underground tuber and a single thin leaf 100–150 mm (4–6 in) long. Between five and twenty reddish-brown to dark purplish flowers are densely crowded along a flowering stem 8–15 mm (0.3–0.6 in) tall. The flowers lean downward and are 4–5 mm (0.16–0.20 in) wide. The flowers and are inverted so that the labellum is above the column rather than below it. The dorsal sepal is egg-shaped, 2–2.5 mm (0.08–0.1 in) long and about 1.5 mm (0.06 in) wide. The lateral sepals are linear to lance-shaped, 3.5–4.5 mm (0.1–0.2 in) long, 1 mm (0.04 in) wide with a small white gland on the tip. The petals are egg-shaped, about 2.5 mm (0.1 in) long and 1 mm (0.04 in) wide and also have a small gland on the tip. The labellum is narrow elliptic to narrow oblong, about 2 mm (0.08 in) long and 1 mm (0.04 in) wide. There is an oblong callus in the centre of the labellum and extending nearly to its tip. Flowering occurs in November and December. [2]
Corunastylis leptochila was first formally described in 2017 by David Jones from a specimen collected near Lavers Hill and the description was published in Australian Orchid Research. [1] The specific epithet (leptochila) is derived from the Ancient Greek words leptos meaning "fine" or "small" [3] :488 and cheilos meaning "lip" or "rim". [3] :486
Corunastylis leptochila grows in forest near a swamp near Lavers Hill where only six plants are known. [2]
Genoplesium nudiscapum, commonly known as the bare midge orchid, is a small terrestrial orchid endemic to Tasmania. It has a single thin leaf fused to the flowering stem and up to twenty small, green and reddish-brown flowers. It was thought to be extinct, since it had not been seen since 1852 but was rediscovered in 2008. The species has also been described as occurring on continental Australia. Australian authorities use the name Corunastylis nudiscapa for the Tasmanian endemic but Genoplesium nudiscapum is used by the World Checklist of Selected Plant Families.
Corunastylis nigricans, commonly known as the Kangaroo Island midge orchid is a small terrestrial orchid endemic to South Australia. It has a single thin leaf and up to twenty five purplish brown flowers with a shiny, hairless, dark purplish labellum. It is sometimes confused with Genoplesium nigricans which has differently coloured flowers and a much wider distribution. It is regarded as a synonym of G. nigricans by the World Checklist of Selected Plant Families.
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 and as Corunastylis bishopii in Australia, 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 citriodorum, commonly known as the lemon-scented midge orchid and as Corunastylis citriodorum in Australia, 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 three small, lemon scented, dark purplish black flowers. It usually grows under shrubs in shallow sandstone soil in the Blue Mountains.
Genoplesium clivicola, known as Corunastylis clivicola 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 five small, greenish and reddish flowers. It grows in forest and woodland in Victoria, the Australian Capital Territory and New South Wales.
Genoplesium confertum, commonly known as the crowded midge orchid, is a small terrestrial orchid endemic to the south-east of Queensland. It has a single thin leaf fused to the flowering stem and up to sixty small, densely crowded, reddish and green flowers and grows in coastal heath.
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.
Corunastylis ciliata, commonly known as the fringed midge orchid, is a small terrestrial orchid endemic to southern Australia. It has a single thin leaf fused to the flowering stem and up to fifteen small, green to greenish yellow flowers with purplish markings and a reddish purple labellum. It was formerly included with Corunastylis archeri, and C. ciliata is regarded as a synonym of Genoplesium archeri by the World Checklist of Selected Plant Families. Plants in this species have fewer, more erect flowers, a less-hairy labellum and have different coloration than C. archeri.
Genoplesium formosum, commonly known as the Cathcart midge orchid is a small terrestrial orchid found in southern New South Wales. It has a single thin leaf and up to twenty five dark reddish purple flowers with darker lines.
Genoplesium morinum, commonly known as the mulberry midge orchid and as Corunastylis morina in Australia, is a small terrestrial orchid endemic to New South Wales. It has a single thin leaf fused to the flowering stem and up to twenty crowded, dark reddish purple flowers. It has been known as "mulberries on sticks".
Genoplesium pedersonii, commonly known as Pederson's midge orchid, is a small terrestrial orchid endemic to the Blackdown Tableland in Queensland. It has a single thin leaf fused to the flowering stem and up to thirty small, greenish red to reddish, self-pollinating flowers with a dark purplish red labellum.
Genoplesium psammophilum is a small terrestrial orchid endemic to coastal and near-coastal areas in south-eastern Queensland. It has a single thin leaf fused to the flowering stem and up to thirty five small, dark red or brownish red flowers.
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.
Genoplesium sigmoideum, commonly known as the Dave's Creek midge orchid, is a small terrestrial orchid 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.
Genoplesium vernale, commonly known as the spring midge orchid or East Lynne midge orchid is a small terrestrial orchid which is endemic to a small area on the south coast of New South Wales. It has a single thin leaf and up to twenty five dark purplish-black flowers with tiny glandular hairs on the sepals and petals.
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 validum, commonly known as the Blackdown midge orchid, is a small terrestrial orchid 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.
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.
Corunastylis laminata, commonly known as the red 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 twenty bright reddish flowers. It grows in heath and grassy forest in a few places on the South Coast and Central Tablelands.