Orthochilus walleri (Rchb. f.) Bytebier

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Orthochilus walleri

Photo: Ton Rulkens
Ancuabe district, Cabo Delgado province

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Synonyms: Cyrtopera walleri Rchb. f.
Eulophia angustiflora Kraenzl.
Eulophia piscicelliana Buscal. & Schltr.
Eulophia walleri (Rchb. f.) Kraenzl.
Common names:
Frequency: Very rare in Zimbabwe.
Status: Native
Slender terrestrial, up to 1 m tall. Leaves 2-3, linear, grass-like, 30-55 cm long, well developed at time of flowering. Inflorescence fairly densely 8-20-flowered. Flowers drooping, bright orange to vermillion-red, lip usually paler at the base and with a yellow callus. Petals and sepals similar, linear, 26-55 mm long, petals sorter than sepals. Spur absent.
Derivation of specific name:
Habitat: Open grassland on kalahari sand, dambo and other poorly drained grassland and on sandy soils in miombo woodland.
Altitude range: (metres) 700 - 1500 m
Flowering time:Jan - Mar(Apr)
Worldwide distribution: Botswana, Namibia (Caprivi), DRC, Tanzania, Malawi, Mozambique, Zambia and Zimbabwe.
Zimbabwe distribution: W
Growth form(s):
Endemic status:
Red data list status: Critically Endangered
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Monday 10 October 2011

La Croix, I.F. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Page 311. (Includes a picture).

Martos, F., Johnson, S.D., Peter, C.I & Bytebier, B. (2104). A molecular phylogeny reveals paraphyly of the large genus Eulophia (Orchidaceae): A case for the reinstatement of Orthochilus Taxon 63(1) Page 20.

Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 186.


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Other sources of information about Orthochilus walleri:

Our websites:

Flora of Botswana: Orthochilus walleri
Flora of Caprivi: Orthochilus walleri
Flora of Malawi: Orthochilus walleri
Flora of Mozambique: Orthochilus walleri
Flora of Zambia: Orthochilus walleri

External websites:

African Plant Database: Orthochilus walleri
Biodiversity Explorer (Biodiversity of southern Africa): Orthochilus walleri
EOL (Encyclopedia of Life): Orthochilus walleri
ePIC (electronic Plant Information Center): Orthochilus walleri
Flora Zambesiaca web site: Orthochilus walleri
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Orthochilus walleri
IPNI (International Plant Names Index): Orthochilus walleri
Ispot Southern Africa : Orthochilus walleri
JSTOR Plant Science: Orthochilus walleri
Kew Herbarium catalogue: Orthochilus walleri
Kew Monocotyledon checklist: Orthochilus walleri
Tropicos: Orthochilus walleri
West African Plants database: Orthochilus walleri

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-15

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2015). Flora of Zimbabwe: Species information: Orthochilus walleri.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=119680, retrieved 26 November 2015

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