African Plant Database

Cyrtorchis ringens (Rchb. f.) Summerh.
Protologue : Kew Bull. 14: 87 (1958)
Information on the genus : Cyrtorchis
Basionym : Listrostachys ringens Rchb. f.
Status for TA : accepted (present)
Synonym(s) Homotypic
 Listrostachys ringens Rchb. f.
 Homocolleticon ringens (Rchb. f.) Szlach. & Olszewski
Synonym(s) Heterotypic
=Angraecum bistortum Rolfe (1893)
=Listrostachys bistorta (Rolfe) Rolfe (1897)
=Cyrtorchis hookeri (Rolfe) Schltr.
=Listrostachys hookeri Rolfe (1897)
=Listrostachys ignoti Kraenzl. (1914)
=Angraecum bucholzianum Kraenzl.
=Cyrtorchis belloneorum Chiron (2001)
=Cyrtorchis bistorta (Rolfe) Schltr.
=Cyrtorchis buchholziana (Kraenzl.) Schltr.
Ecology and distribution
Trop. Afr.
Biology : Epiphytic herb to c. 40 cm tall, glabrous; stem woody, ± arcuate, 7-40 cm long, covered with black-brown old leaf-bases; leaves 6-10, distichous, linear, 7-15x1,2-2,5 cm, thick, leathery, olive green, wrinkled when dry, apex roundly 2-lobed; inflorescences below leaves, sometimes in axils, 4-7 cm long, 5-12-flowered; peduncle 1 cm long; flowers creamy white, tip of spur sometimes pinkish or greenish; bracts ovate, 3-8x4-7 mm; pedicel and ovary c. 1 cm long; sepals lanceolate, acute, c. 1x0,4 cm, tips recurved; petals similar, smaller; lip lanceolate-acuminate, 0,7-1x c. 0,4 cm, apex recurved; spur 2-3 cm long, straight or incurved.
Ecology : Evergreen forest; rain-forest; riverine forest; forest with Albizia gummifera; swamp forest; high-rainfall woodland; at high level on main horizontal branches of trees, on, e.g. Cassipourea gummiflua; live fences; 200-2600 m alt. – Widespread but local.
  Bioko/Fernando Poo, S. Tomé (Stévart & al., Guide orchid. S. Tomé & Príncipe: 143, 2000; Acta Bot. Gall. 147: 171, 2000; Bothalia 41: 64, 2011). Not in Fl. Gabon 37, 2004.

Bibliography for Tropical Africa :
  • Exell, A. & Wild, H. (1998). Flora Zambesiaca: Mozambique, Federation of Rhodesia and Nyasaland, Bechuanaland Protectorate. London Kew 11[2]: 416

Bibliography other :
  • Azandi L., T. Stévart, B. Sonké & al. (2016). Synoptic revision of the genus Cyrtorchis Schltr. (Angraecinae, Orchidaceae) in Central Africa, with the description of a new species restricted to submontane vegetation. Phytotaxa 267(3): 181 
More info on :
see under Jstor_African Plant Initiative
see under Flore d'Afrique Centrale
see under Fgui
see under The International Plant Name Index
see under Flora of Mozambique
see under Orchidées d'Afrique Centrale
see under Flora of Zimbabwe
carte afrique num 44959
Record n°44959 modified 2007-04-03
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