Dendrobium sect. Rhizobium
Dendrobium linguiforme
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Genus: Dendrobium
Section: Dendrobium sect. Rhizobium
Lindl. & Paxton 1851
Type species
Dendrobium linguiforme
Species

See text

Synonyms

Dockrillia (Brieger 1981).

Dendrobium section Rhizobium is a section of the genus Dendrobium.[1][2]

Description

Plants in this section have thick, fleshy to terete leaves produced along a thin and wiry stem.[1]

The section was established in 1851 by John Lindley and Joseph Paxton. Species in this section was included in the genus Dockrilla, named after Alick Dockrill,[3] by authors including David Jones, Mark Clements and Stephan Rauschert for some species formerly included in the genus Dendrobium. A 2008 paper, based on a study the molecular phylogenetics of a wide range of related orchids, concluded that "the splitting of Australasian dendrobiums into various genera by other authors is excessive and unnecessary" moving the species back to the section Rhizobium.[4]

Distribution

Plants from this section are found in Australia, New Guinea, New Caledonia and Vanuatu.[1][5]

Species

Dendrobium section Rhizobium comprises the following species:

ImageNameDistributionElevation (m)
Dendrobium bowmanii Benth. 1873Australia ( Queensland and New South Wales) and New Caledonia.0–200 metres (0–656 ft)
Dendrobium brevicaudum D.L.Jones & M.A.Clem. 1994Australia ( Queensland)700–950 metres (2,300–3,120 ft)
Dendrobium casuarinae Schltr. 1918New Caledonia0–1,000 metres (0–3,281 ft)
Dendrobium caudiculatum M.A.Clem. & D.L.Jones 1996Papua New Guinea40–900 metres (130–2,950 ft)
Dendrobium chordiforme Kraenzl. 1910Papua New Guinea10–3,300 metres (33–10,827 ft)
Dendrobium contextum Schuit. & de Vogel ex J.M.H.Shaw 2003 Papua New Guinea1,200 metres (3,900 ft)
Dendrobium crispatum (G.Forst.) Sw. 1799French Polynesia (Society Islands)
Dendrobium cucumerinum MacLeay ex Lindl. 1842Australia ( Queensland)50–800 metres (160–2,620 ft)
Dendrobium erythraeum Schuit. & de Vogel 2003Papua New Guinea
Dendrobium flagellum Schltr. 1912New Guinea150 metres (490 ft)
Dendrobium fuliginosum (M.A.Clem. & D.L.Jones) P.F.Hunt 1998New Guinea
Dendrobium leptophyton Schuit. & de Vogel 2003Papua New Guinea900–2,000 metres (3,000–6,600 ft)
Dendrobium lichenastrum (F.Muell.) Rolfe 1905Australia ( Queensland)0–1,950 metres (0–6,398 ft)
Dendrobium linguiforme Sw. 1800Australia (Queensland and New South Wales)0–1,200 metres (0–3,937 ft)
Dendrobium mortii F.Muell. 1859New Caledonia, Australia (Queensland and New South Wales)300–900 metres (980–2,950 ft)
Dendrobium nothofageti (M.A.Clem. & D.L.Jones) Schuit. & de Vogel 2003Papua New Guinea2,800 metres (9,200 ft)
Dendrobium pugioniforme A.Cunn. ex Lindl. 1839Australia (Queensland and New South Wales)0–1,300 metres (0–4,265 ft)
Dendrobium racemosum (Nicholls) Clemesha & Dockrill 1964Australia (Queensland)800–1,500 metres (2,600–4,900 ft)
Dendrobium rigidum R.Br. 1810Australia(Queensland) and New Guinea700 metres (2,300 ft)
Dendrobium schoeninum Lindl. 1846Australia (Queensland and New South Wales)600 metres (2,000 ft)
Dendrobium striolatum Rchb.f. 1857Australia (New South Wales, Victoria and Tasmania )1,000 metres (3,300 ft)
Dendrobium teretifolium R.Br. 1810Australia (Queensland and New South Wales)5–800 metres (16–2,625 ft)
Dendrobium toressae (F.M.Bailey) Dockrill 1964Australia (Queensland)50–1,220 metres (160–4,000 ft)
Dendrobium vagans Schltr. 1911New Caledonia, Fiji, Samoa, Vanuatu and the Santa Cruz Islands0–1,300 metres (0–4,265 ft)
Dendrobium wassellii S.T.Blake 1963Australia (Queensland )300 metres (980 ft)

Natural Hybrids

ImageNameParentageDistribution
Dendrobium × grimesii C.T.White & Summerh. 1934Dendrobium linguiforme × Dendrobium teretifoliumQueensland, Australia

References

  1. 1 2 3 "Den. Sec. Rhizobium". The American Orchid Society. 2016-03-24. Retrieved 2023-05-03.
  2. "Tropicos". Tropicos. Retrieved 2023-05-03.
  3. Australian Plants Online. "What is a Dockrillia?" Archived 2009-10-24 at the Wayback Machine
  4. Burke, Jacinta M.; Bayly, Michael J.; Adams, Peter B.; Ladiges, Pauline Y. (2008). "Molecular phylogenetic analysis of Dendrobium (Orchidaceae), with emphasis on the Australian section Dendrocoryne , and implications for generic classification". Australian Systematic Botany. 21 (1): 1–14. doi:10.1071/SB07038. Retrieved 21 November 2018.
  5. "Largest online collection of New Guinea orchids". Orchids of New Guinea. Retrieved 2023-05-03.


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