Tridactyle citrina P.J. Cribb

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Synonyms: Tridactyle sp. of Williamson, Orch. S. Centr. Africa: 205 (1977).
Common names:
Frequency:
Status: Native
Description:
Erect, epiphytic herb. Stem usually short, 1–9 cm long. Roots stout, smooth or very slightly verrucose. Leaves 3–4, stiff, more or less erect, linear, 7–14 cm long, folded along the length, unequally 2-lobed at the apex, slightly blueish-green. Inflorescences 1 or 2, arising at base of the stem, arching, 7.5–11 cm long, fairly densely c. 10-flowered. Flowers yellow, creamy-yellow or greenish-cream, c. 15 mm in diameter, arranged in 2 ranks. Sepals and petals lanceolate; sepals 8–11 mm long, lateral sepals somewhat oblique with the tips reflexed. Petals spreading, reflexed at tips, 7–8 mm long. Lip 3-lobed in apical half, 10–16 mm long, 3–5 mm wide; mid-lobe narrowly triangular, 3.5–5 long; side lobes shorter, obliquely spreading; spur 4–5 cm long, slender, at first parallel to ovary, then pendent.
Type location:
Zambia
Notes:
Derivation of specific name: citrina; citrine or lime-coloured, referring to the flowers.
Habitat: Woodland and scattered trees in montane grassland on mountain sides or in high rainfall Brachystegia woodland, usually on larger branches.
Altitude range: 1360 - 1700 m
Flowering time:Dec - Jan
Worldwide distribution: Tanzania, Malawi and Zambia.
Zambian distribution (Flora Zambesiaca): N
Zambian distribution (Provinces): N,Mc
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 336. (Includes a picture).

Cribb, P.J. (1977). New orchids from South Central Africa Kew Bulletin 32(1) Pages 181 - 183. Protologue (Includes a picture).

La Croix, I. & Cribb, P.J. (1998). Orchidaceae (Part 2) Flora Zambesiaca 11(2) Page 454.

La Croix, I. et al. (1983). Malawi Orchids Volume 1 Epiphytic Orchids National Fauna Preservation Society of Malawi Pages 136 - 137. (Includes a picture).

La Croix, I. et al. (1991). Orchids of Malawi A.A. Balkema, Rotterdam Page 290. (Includes a picture).

Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 124.

Williamson, G. (1977). The Orchids of South Central Africa J.M. Dent & Sons Ltd., London. Pages 204 - 206. as Tridactyle sp. (Includes a picture).

Other sources of information about Tridactyle citrina:

Our websites:

Flora of Malawi: Tridactyle citrina

External websites:

African Plants: A Photo Guide (Senckenberg): Tridactyle citrina
BHL (Biodiversity Heritage Library): Tridactyle citrina
EOL (Encyclopedia of Life): Tridactyle citrina
ePIC (electronic Plant Information Center): Tridactyle citrina
Flora Zambesiaca web site: Tridactyle citrina
GBIF (Global Biodiversity Information Facility): Tridactyle citrina
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Tridactyle citrina
iNaturalist: Tridactyle citrina
IPNI (International Plant Names Index): Tridactyle citrina
JSTOR Plant Science: Tridactyle citrina
Kew Herbarium catalogue: Tridactyle citrina
Kew Monocotyledon checklist: Tridactyle citrina
Mansfeld World Database of Agricultural and Horticultural Crops: Tridactyle citrina
Plants of the World Online: Tridactyle citrina
The Plant List (version 1.1): Tridactyle citrina
Tropicos: Tridactyle citrina
Wikipedia: Tridactyle citrina


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-19

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2019). Flora of Zambia: Species information: Tridactyle citrina.
https://www.zambiaflora.com/speciesdata/species.php?species_id=209970, retrieved 12 December 2019

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