Pterostylis setifera

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Bristly rustyhood
Pterostylis setifera.jpg
Pterostylis setifera growing near Rushworth
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Cranichideae
Genus: Pterostylis
Species:
P. setifera
Binomial name
Pterostylis setifera
M.A.Clem., Matthias & D.L.Jones [1]
Synonyms [1]

Oligochaetochilus setifer(M.A.Clem., Matthias & D.L.Jones) Szlach.

Contents

Pterostylis setifera, commonly known as the bristly rustyhood [2] or sikh's whiskers, [3] is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves and four to ten translucent white, green and brown flowers which have an insect-like labellum with long, bristly hairs.

Description

Pterostylis setifera, is a terrestrial, perennial, deciduous, herb with an underground tuber. It has a rosette of between five and ten egg-shaped leaves at the base of the flowering spike, each leaf 20–40 mm (0.8–2 in) long and 6–12 mm (0.2–0.5 in) wide. Between two and ten transparent white flowers with green and light brown markings and about 18 mm (0.7 in) long are borne on a flowering spike 150–300 mm (6–10 in) tall. Five to eight stem leaves are wrapped around the flowering spike. The dorsal sepal and petals form a hood over the column with the dorsal sepal having an upturned point about 5–6 mm (0.20–0.24 in) long. The lateral sepals turn downwards, joined to each other for about half their length and are much wider than the hood. They have thread-like tips 7–10 mm (0.3–0.4 in) long and curve forwards and away from each other. The labellum is lance-shaped, 4–5 mm (0.16–0.20 in) long and about 2 mm (0.08 in) wide. There are 10 to 15 bristles up to 5 mm (0.2 in) long on each side of the labellum and many short bristles on the "head" end. Flowering occurs from September to November. [2] [3] [4] [5] [6]

Taxonomy and naming

Pterostylis setifera was first formally described in 1985 by Mark Clements, I.G. Matthias and David Jones from a specimen collected in the Ingalba Nature Reserve in Temora. The description was published in the Kew Bulletin . [1] The specific epithet (setifera) is a Latin word meaning "bearing bristles". [7] :67

Distribution and habitat

The bristly rustyhood grows in a variety of habitats including among rocks and in mallee vegetation. It occurs south from Narrabri in New South Wales and in scattered populations between Wedderburn and Rushworth in Victoria. It is only found the Murray botanical region in South Australia and is rare in both Victoria and South Australia. [2] [3] [4] [5]

Related Research Articles

<i>Pterostylis aciculiformis</i> Species of orchid

Pterostylis aciculiformis, commonly known as the needle-point rustyhood or slender ruddyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves and up to ten green and brown flowers with a brown, insect-like labellum. It is widespread and locally common in New South Wales and Victoria, growing mostly in drier forests.

<i>Pterostylis basaltica</i> Species of orchid

Pterostylis basaltica, commonly known as the basalt rustyhood or basalt greenhood is a plant in the orchid family Orchidaceae and is endemic to Victoria. It has a rosette of leaves and eight to fifteen translucent white flowers with green and brown markings and a brownish, insect-like labellum. It is a rare species only known from a small area and is endangered.

<i>Pterostylis biseta</i> Species of orchid

Pterostylis biseta, commonly known as the bristled rustyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves at its base and up to seven relatively large, translucent flowers with green and brown marking with a brown to green insect-like labellum with bristly hairs. It occurs in New South Wales, South Australia and Victoria although in the latter state it has been separated into three species and is also under review in New South Wales.

<i>Pterostylis cheraphila</i> Species of orchid

Pterostylis cheraphila, commonly known as the floodplain rustyhood is a plant in the orchid family Orchidaceae and is endemic to a small area in Victoria. It has a rosette of leaves near its base and up to seven dark brown to blackish flowers with a dark brown, insect-like labellum. It is only found in the Little Desert area.

<i>Pterostylis despectans</i> Species of orchid

Pterostylis despectans, commonly known as the lowly rustyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves at its base and up to six flowers on long stalks, branching off a short flowering stem. The flowers have an insect-like labellum and often touch the ground.

<i>Pterostylis cobarensis</i> Species of orchid

Pterostylis cobarensis, commonly known as the inland rustyhood or Cobar rustyhood is a plant in the orchid family Orchidaceae and is endemic to Australia. It has a rosette of leaves and between two and ten hairy, green and brown flowers with translucent white "windows" and a fleshy, insect-like labellum. It grows in inland areas of eastern Australia.

<i>Pterostylis lingua</i> Species of orchid

Pterostylis lingua, commonly known as the large-lipped rustyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves and up to ten dark reddish-brown flowers with translucent "windows" and a blackish, insect-like labellum.

<i>Pterostylis maxima</i> Species of orchid

Pterostylis maxima, commonly known as the large rustyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of leaves at its base and up to eight relatively large, dark brown flowers with transparent "windows" and a thin, dark insect-like labellum.

<i>Pterostylis planulata</i> Species of orchid

Pterostylis planulata, commonly known as the flat rustyhood, is a plant in the orchid family Orchidaceae and is endemic to Victoria. It has a rosette of leaves at its base and up to seven translucent flowers with green stripes. The flowers have a thin, dark green, insect-like labellum.

<i>Pterostylis squamata</i> Species of orchid

Pterostylis squamata, commonly known as the southern rustyhood or ruddyhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. Flowering plants have up to ten translucent green flowers with reddish-brown markings and a hairy, insect-like labellum. Non-flowering plants have a rosette of four to eight egg-shaped leaves. This species is very similar to Pterostylis rufa which has a narrower labellum and other minor differences.

<i>Pterostylis woollsii</i> Species of orchid

Pterostylis woollsii, commonly known as the long-tailed rustyhood, is a plant in the orchid family Orchidaceae and is endemic to eastern Australia. It has a rosette of leaves at its base and up to six transparent flowers which have unusually long tips on their lateral sepals and a reddish-brown, insect-like labellum.

<i>Pterostylis hamata</i> Species of orchid

Pterostylis hamata, commonly known as the southern hooked rustyhood, is a plant in the orchid family Orchidaceae and is endemic to eastern Australia. It has a rosette of leaves and between two and twelve transparent flowers with green and brown markings, a thick, brown, insect-like labellum and dished lateral sepals.

Pterostylis arenicola, commonly known as the sandhill rustyhood is a plant in the orchid family Orchidaceae and is endemic to South Australia. It has a rosette of leaves near its base and up to ten reddish-brown and white flowers with a dark brown, insect-like labellum. Its distribution is now restricted to areas around Lake Alexandrina.

<i>Pterostylis calceolus</i> Species of orchid

Pterostylis calceolus, commonly known as the Bungonia rustyhood, is a plant in the orchid family Orchidaceae and is endemic to New South Wales. It has a rosette of overlapping leaves and between two and seven reddish-brown flowers with transparent "windows" and a fleshy brown, insect-like labellum. It is only known from near Bungonia.

<i>Pterostylis chaetophora</i> Species of orchid

Pterostylis chaetophora, commonly known as the Taree rustyhood, tall rusthood or ruddy hood is a plant in the orchid family Orchidaceae and is endemic to eastern Australia. It has a rosette of leaves at its base and up to twelve reddish-brown flowers with translucent "windows" and a fleshy, reddish-brown, bristly, insect-like labellum.

Pterostylis commutata, commonly known as the midland rustyhood is a plant in the orchid family Orchidaceae and is endemic to Tasmania. It has a rosette of leaves near its base and up to five translucent white and green flowers with a hairy, insect-like labellum. It is only found in a small area near Tunbridge and Ross.

Pterostylis excelsa, commonly known as the tall rustyhood, or dry land green-hood is a flowering plant in the orchid family Orchidaceae and is endemic to South Australia. It has a rosette of leaves and when flowering, up to twenty green or brown flowers which lean forward and have a thick, fleshy, partly hairy, insect-like labellum.

Pterostylis ferruginea, commonly known as the Bangham rustyhood, is a plant in the orchid family Orchidaceae and is endemic to the border area between South Australia and Victoria. It has a rosette of leaves and when flowering, up to ten upright, dark green and translucent white flowers which have an insect-like labellum.

Pterostylis mitchellii, commonly known as Mitchell's rustyhood, is a plant in the orchid family Orchidaceae and is endemic to eastern Australia. Both flowering and non-flowering plants have a rosette of leaves and flowering plants have up to fifteen flowers which have wide flanges on the petals and an insect-like labellum with a white "head".

Pterostylis petrosa, commonly known as the Riverina rustyhood, is a plant in the orchid family Orchidaceae, endemic to New South Wales, Australia. It has a rosette of leaves at its base and up to eight dark brown flowers with transparent "windows", long spreading tips on the lateral sepals and a thin, brown, insect-like labellum.

References

  1. 1 2 3 "Pterostylis setifera". APNI. Retrieved 28 May 2017.
  2. 1 2 3 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 333. ISBN   978-1877069123.
  3. 1 2 3 Jones, David L. "Pterostylis setifera". Royal Botanic Garden Sydney: plantnet. Retrieved 28 May 2017.
  4. 1 2 Jeanes, Jeff. "Pterostylis setifera". Royal Botanic Gardens Victoria: vicflora. Retrieved 28 May 2017.
  5. 1 2 "Pterostylis setifera". State Herbarium of South Australia: eflora SA. Retrieved 28 May 2017.
  6. Clements, Mark A.; Matthias, I.G.; Jones, David L. (1985). "A new species of Pterostylis (Orchidaceae) from southeastern Australia". Kew Bulletin. 40 (1): 77–80. Bibcode:1985KewBu..40...77C. doi:10.2307/4108475. JSTOR   4108475.
  7. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 392.