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Dendrobium sect. Rhizobium

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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

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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

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

Species

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Dendrobium section Rhizobium comprises the following species:

Image Name Distribution Elevation (m)
Dendrobium bowmanii Benth. 1873 Australia ( Queensland and New South Wales) and New Caledonia. 0–200 metres (0–656 ft)
Dendrobium brevicaudum D.L.Jones & M.A.Clem. 1994 Australia ( Queensland) 700–950 metres (2,300–3,120 ft)
Dendrobium casuarinae Schltr. 1918 New Caledonia 0–1,000 metres (0–3,281 ft)
Dendrobium caudiculatum M.A.Clem. & D.L.Jones 1996 Papua New Guinea 40–900 metres (130–2,950 ft)
Dendrobium chordiforme Kraenzl. 1910 Papua New Guinea 10–3,300 metres (33–10,827 ft)
Dendrobium contextum Schuit. & de Vogel ex J.M.H.Shaw 2003 Papua New Guinea 1,200 metres (3,900 ft)
Dendrobium crispatum (G.Forst.) Sw. 1799 French Polynesia (Society Islands)
Dendrobium cucumerinum MacLeay ex Lindl. 1842 Australia ( Queensland) 50–800 metres (160–2,620 ft)
Dendrobium erythraeum Schuit. & de Vogel 2003 Papua New Guinea
Dendrobium flagellum Schltr. 1912 New Guinea 150 metres (490 ft)
Dendrobium fuliginosum (M.A.Clem. & D.L.Jones) P.F.Hunt 1998 New Guinea
Dendrobium leptophyton Schuit. & de Vogel 2003 Papua New Guinea 900–2,000 metres (3,000–6,600 ft)
Dendrobium lichenastrum (F.Muell.) Rolfe 1905 Australia ( Queensland) 0–1,950 metres (0–6,398 ft)
Dendrobium linguiforme Sw. 1800 Australia (Queensland and New South Wales) 0–1,200 metres (0–3,937 ft)
Dendrobium mortii F.Muell. 1859 New 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 2003 Papua New Guinea 2,800 metres (9,200 ft)
Dendrobium pugioniforme A.Cunn. ex Lindl. 1839 Australia (Queensland and New South Wales) 0–1,300 metres (0–4,265 ft)
Dendrobium racemosum (Nicholls) Clemesha & Dockrill 1964 Australia (Queensland) 800–1,500 metres (2,600–4,900 ft)
Dendrobium rigidum R.Br. 1810 Australia(Queensland) and New Guinea 700 metres (2,300 ft)
Dendrobium schoeninum Lindl. 1846 Australia (Queensland and New South Wales) 600 metres (2,000 ft)
Dendrobium striolatum Rchb.f. 1857 Australia (New South Wales, Victoria and Tasmania ) 1,000 metres (3,300 ft)
Dendrobium teretifolium R.Br. 1810 Australia (Queensland and New South Wales) 5–800 metres (16–2,625 ft)
Dendrobium toressae (F.M.Bailey) Dockrill 1964 Australia (Queensland) 50–1,220 metres (160–4,000 ft)
Dendrobium vagans Schltr. 1911 New Caledonia, Fiji, Samoa, Vanuatu and the Santa Cruz Islands 0–1,300 metres (0–4,265 ft)
Dendrobium wassellii S.T.Blake 1963 Australia (Queensland ) 300 metres (980 ft)

Natural Hybrids

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Image Name Parentage Distribution
Dendrobium × grimesii C.T.White & Summerh. 1934 Dendrobium linguiforme × Dendrobium teretifolium Queensland, Australia

References

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  1. ^ a b c "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.