Paphiopedilum dianthum is a perennial herbaceous plant of the Orchidaceae family.
| Paphiopedilum dianthum | |||||||||||||||||||||||||||||
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| International scientific name | |||||||||||||||||||||||||||||
Paphiopedilum dianthum Tang & FTWang , 1940 | |||||||||||||||||||||||||||||
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The species has no established Russian name.
Synonyms
According to the Royal Botanic Gardens at Kew [2] :
- Paphiopedilum parishii var. dianthum ( Tang & FTWang ) K.Karas. & K.Saito , 1982
- Paphiopedilum dianthum f. album O.Gruss , 2003
Etymology
The species name "dianthum" means "two-flowered", perhaps this is due to the typical number of flowers in the inflorescence of plants in the wild [3] .
Biological Description
It resembles the lighter and more elegant form of Paphiopedilum parishii . These two species differ in that of Paph. dianthum is a white sail , not greenish. Also, species differ in the nuances of the shape of the lip [4] .
Relatively large herbs. It forms large curtains, up to 15 shoots in each.
Escape of the sympodial type, hidden by the bases of 4-6 leaves.
The leaves are leathery, dark green, 20-50 cm long, 2-5 cm wide.
Inflorescence 1-7 flowering.
Flowers are 12-15 cm in diameter [5] . According to other sources, 10-18 cm in diameter [3] .
staminodes are back-cordate, three-lobed at the apex, 9–11 by 6–7.5 mm, white with dark green venation in the center [5] .
Chromosomes : 2n = 26 [3] .
Range, environmental features
Southern China , the northern provinces of Vietnam ( Kaobang , Khazyang , Hoabin , Laityou , Laokai , Shonla ).
Coniferous, mixed and deciduous, evergreen, humid forests on highly eroded, crystalline limestone on Elev. M. 600-1450 Fl. September - November.
Lithophyte on rocky massifs of crystalline limestone in coniferous, mixed and deciduous evergreen moist forests, at heights of 600 to 1450 meters above sea level [5] .
Temperature range: 12-23 ° C. Shady habitats. Soil: crushed stone, moss, deciduous litter. It blooms in September and November. It was noted in the places of growth together with Paphiopedilum micranthum , Paphiopedilum hirsutissimum var. esquirolei , Paphiopedilum malipoense, and Paphiopedilum henryanum [3] .
It belongs to the number of protected species (I CITES appendix).
| This species is on the verge of extinction and is listed in the International Red Book |
In Culture
The temperature group is moderate.
Light : 1500-1700 FC [6] .
Relative humidity : from 50% and above.
Planting in plastic and ceramic pots with several drainage holes on the bottom, providing uniform drying of the substrate.
The frequency of watering is selected so that the substrate inside the pot does not have time to dry completely.
According to some collectors is a calcephilus [7] . The main components of the substrate: see article Paphiopedilum .
Some famous clones :
- Paph. dianthum 'Candorelle' AM / AOS
Grexes and natural hybrids
According to The International Orchid Register [8] .
- Paphiopedilum Skelton (F. Sugiyama) 2009, (= Paphiopedilum lowii × Paphiopedilum dianthum ♂)
- Paphiopedilum Lian Tan (Paphyville) 2007, (= Paphiopedilum philippinense × Paphiopedilum dianthum ♀)
- Paphiopedilum Mark Zerner (Hans Koch) 2005, (= Paphiopedilum Heeder Fladder × Paphiopedilum dianthum ♀)
- Paphiopedilum Rydeen (Mochizuki Orch.) 2008, (= Paphiopedilum parishii × Paphiopedilum dianthum ♀)
- Paphiopedilum Travis Shane Lawless (N. Powell) 1999, (= Paphiopedilum primulinum × Paphiopedilum dianthum ♀)
- Paphiopedilum × grussianum (= Paphiopedilum dianthum × Paphiopedilum hirsutissimum ♂) natural hybrid
- Paphiopedilum × petchleungianum (= Paphiopedilum dianthum × Paphiopedilum villosum ♂) natural hybrid
Diseases and Pests
Notes
- ↑ For the conventionality of indicating the class of monocotyledons as a superior taxon for the plant group described in this article, see the APG Systems section of the Monocotyledonous article .
- ↑ World Checklist of Paphiopedilum dianthum . The Royal Botanic Gardens, Kew.
- ↑ 1 2 3 4 View essay on slipperorchids.info
- ↑ Koopowitz Harold, Comstock James, Woodin Carol; Tropical Slipper Orchids Timber Press, 2007
- ↑ 1 2 3 Averyanov L. The orchids of Vietnam illustrated survey // Turczaninowia .. - 2008. - Issue. 11 (1) . - S. 5–168 .
- ↑ Paphiopedilum dianthum on orchidweb.com unopened (inaccessible link) . Date of treatment November 26, 2009. Archived April 30, 2008.
- ↑ Bob & Lynn Wellenstein. Supplementing Calcicolous Paphs.
- ↑ The International Orchid Register
Literature
- Koopowitz Harold, Comstock James, Woodin Carol. Tropical Slipper Orchids: Paphiopedilum and Phragmipedium Species and Hybrids. Timber Press, 2007. ISBN 0-88192-864-X .
- Gruss O , 2003, Paphiopedilum dianthum forma album, eine neue Farbform. Orchidee 54. (1): 60–63.
- Cribb P, Luo YB, Siu G , 1999, Paphiopedilum dianthum in south-west China. Orchid Rev. 107. (1229): 289-291.
- Tan ZH, Feng YX , 1994, Paphiopedilum dianthum Tang et Wang. Guihaia 14. (1): 1-2.
- Cribb PJ, Tang CZ , 1983, The Chinese species of Paphiopedilum. Orchid Rev. 91. (1075): 160-165.
- Cox, AV, GJ Abdelnour, MD Bennett & IJ Leitch . 1998. Genome size and karyotype evolution in the slipper orchids (Cypripedioideae: Orchidaceae). Amer. J. Bot. 85 (5): 681-687.
Links
- Photos of Paphiopedilum dianthum on flickr.com
- Paphiopedilum dianthum 3D image. (inaccessible link)
- View sketch on slipperorchids.info (English)
- Paphiopedilum dianthum view essay on Internet Orchid Species Photo Encyclopedia
- Paphiopedilum dianthum on Tropicos.org. Missouri Botanical Garden. (eng.)
- Paphiopedilum dianthum (English) . The IUCN Red List of Threatened Species .