Vrydagzynea

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Tonsil orchids
Vrydagzynea albida - Karl Ludwig von Blume - Collection des Orchidees les plus remarquables de l'archipel Indien et du Japon (1858).jpg
Drawing of Vrydagzynea albida
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Cranichideae
Subtribe: Goodyerinae
Genus: Vrydagzynea
Blume [1]

Vrydagzynea, commonly called tonsil orchids, [2] is a genus of orchids in the tribe Cranichideae. About forty five species of Vrydagzynea have been formally described. They are native to India, Taiwan, Southeast Asia, Malesia, Melanesia and Polynesia. A single species in Australia is possibly extinct. They have thinly textured, stalked leaves and small, dull-coloured resupinate flowers with the dorsal sepal and petals overlapping to form a hood over the column.

Contents

Description

Orchids in the genus Vrydagzynea are terrestrial, perennial, deciduous, sympodial herbs with a fleshy, creeping, above-ground rhizome anchored by wiry roots. The leaves are thinly textured and stalked, arranged in a rosette at the base of the flowering stem or scattered along it. Small, resupinate dull-coloured flowers are crowded along the short flowering stem which usually has protruding bracts. The dorsal sepal and petals overlap, forming a hood over the column. The labellum has a downward pointing spur and two stalked glands that resemble tonsils or testicles. Orchids in this genus are distinguished from those in other similar genera by the labellum glands, labellum spur and by having petals which are shorter than the sepals. [2] [3] [4] [5] [6]

Taxonomy and naming

The genus Vrydagzynea was first formally described in 1858 by Carl Ludwig Blume and the description was published in his book Collection des Orchidées les plus remarquables de l'archipel Indien et du Japon. [1] [7] The name Vrydagzynea honours the Dutch pharmacologist Theodore Daniel Vrydag Zynen, a contemporary of Blume. [6]

List of species

The following is a list of species of Vrydagzynea recognised by the World Checklist of Selected Plant Families as at October 2020: [1]

See also

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  1. Erythrodes amboinensis(J.J.Sm.) J.J.Sm. - Ambon
  2. Erythrodes bicalcarata(R.S.Rogers & C.T.White) W.Kittr. - New Guinea
  3. Erythrodes bicarinataSchltr. - New Guinea, Vanuatu
  4. Erythrodes blumei(Lindl.) Schltr. in K.M.Schumann & C.A.G.Lauterbach - from Assam east to Taiwan, south to Java
  5. Erythrodes boettcheriAmes - Luzon
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  7. Erythrodes forcipataSchltr. - New Guinea
  8. Erythrodes glandulosa(Lindl.) Ames - Borneo
  9. Erythrodes glaucescensSchltr. - New Guinea
  10. Erythrodes hirsuta(Griff.) Ormerod in G.Seidenfaden - Hainan, Assam, Bhutan, Myanmar, Thailand, Vietnam
  11. Erythrodes humilis(Blume) J.J.Sm. - Java, Sumatra, peninsular Malaysia
  12. Erythrodes johorensis(P.O'Byrne) Ormerod - peninsular Malaysia
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  14. Erythrodes latilobaOrmerod - Sri Lanka
  15. Erythrodes oxyglossaSchltr. - Fiji, New Caledonia, Samoa, Tonga, Vanuatu, Wallis & Futuna
  16. Erythrodes papuanaSchltr. in K.M.Schumann & C.A.G.Lauterbach - New Guinea
  17. Erythrodes parvulaKores - Fiji, Tonga
  18. Erythrodes praemorsaSchltr. - New Guinea
  19. Erythrodes purpurascensSchltr. in K.M.Schumann & C.A.G.Lauterbach - New Guinea, Fiji, Tonga, Samoa
  20. Erythrodes sepikanaSchltr. - New Guinea
  21. Erythrodes sutricalcarL.O.Williams - New Guinea
  22. Erythrodes tetrodontaOrmerod - New Guinea
  23. Erythrodes torricellensisSchltr. - New Guinea
  24. Erythrodes trilobaCarr - Sabah
  25. Erythrodes weberiAmes - Philippines
  26. Erythrodes wenzeliiAmes - Philippines
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  1. Hippeophyllum albovirideJ.J.Sm. - New Guinea
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  3. Hippeophyllum celebicumSchltr. - Sulawesi
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  6. Hippeophyllum micranthumSchltr. in K.M.Schumann & C.A.G.Lauterbach - New Guinea, Solomon Islands
  7. Hippeophyllum papillosumSchltr. - New Guinea
  8. Hippeophyllum scortechinii(Hook.f.) Schltr. - Borneo, Java, Malaysia, Sulawesi, Sumatra
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<i>Peristylus</i> Genus of orchids

Peristylus, sometimes commonly known as ogre orchids or bog orchids is a genus of flowering plants from the orchid family, Orchidaceae. It consists of over 100 known species found across much of eastern and southern Asia as well as in Australia and on many islands of the Indian and Pacific Oceans.

<i>Schoenorchis</i> Genus of orchids

Schoenorchis, commonly known as flea orchids, or 匙唇兰属 , is a genus of flowering plants from the orchid family, Orchidaceae. Plants in this genus are small epiphytes with thin roots, thin leafy stems with leaves in two ranks and tiny fragrant, almost tube-shaped flowers with a prominently spurred labellum. There are about twenty five species found from tropical and subtropical Asia to the Western Pacific.

<i>Rhomboda</i> Genus of flowering plants

Rhomboda, commonly known as velvet jewel orchids, is a genus of about twenty species of flowering plants in the orchid family Orchidaceae. Plants in this genus are mostly terrestrial herbs with a fleshy, creeping rhizome and a loose rosette of green to maroon coloured leaves. Small resupinate or partly resupinate, dull coloured flowers are borne on a hairy flowering stem. The dorsal sepal and petals overlap and form a hood over the column and there is a deep pouch at the base of the labellum. They are found in tropical regions from northern India through Southeast Asia, China, Japan to Australia and some Pacific Islands.

References

  1. 1 2 3 "Vrydagzynea". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  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. 350. ISBN   1877069124.
  3. D.L.Jones; T.Hopley; S.M.Duffy (2010). "Vrydagzynea". Australian Tropical Rainforest Orchids . Centre for Australian National Biodiversity Research (CANBR), Australian Government . Retrieved 29 May 2021.
  4. "Vrydagzynea". Flora of China. Retrieved 4 September 2018.
  5. Alec M. Pridgeon; Phillip J. Cribb; Mark W. Chase; Finn N. Rasmussen, eds. (2003). Genera orchidacearum (Volume 3). Oxford: Oxford University Press. pp. 145–150. ISBN   0198507119.
  6. 1 2 "Vrydagzynea". The Orders and Families of Monocots. Retrieved 4 September 2018.
  7. "Vrydagzynea". APNI. Retrieved 4 September 2018.