Cyrtorchis hamata (Rolfe) Schlechter (1914: 596)

Azandi, Laura, Stevart, Tariq, Sonké, Bonaventure, Simo-Droissart, Murielle, Avana, Marie-Louise & Droissart, Vincent, 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), pp. 165-186 : 177-178

7. Cyrtorchis hamata (Rolfe) Schlechter (1914: 596) . Basionym: Listrostachys hamata Rolfe (1906: 132 t.8074). Type:— NIGERIA. Lagos, W.T.Martin s. n. (holotype K!)

Additional specimens examined:— IVORY COAST. Ht Sassandra, Pays des Dyolas , entre Disandougou et Niangouépleu, 12 May 1909, Chevalier 21527 ( P) ; Mafa, 1970, Bonardi s. n. ( P) ; Daloa , May 1972, Perez-Vera 244 (K, P) ; De Daloa versus Guiglo , 20 km circiter N.N.E., 7 March 1962, Bernardi 8498 ( P) ; San Pedro , 19 May 1901, Thoiré 257 ( P) ; 64 Km. N. of Sassandra, c. 5 Km. W. of Niapidou , 14 June 1963, de Wilde 206 ( P) . TOGO. Kpave on Ficus , 11 January 1953, Westwood 80 (K) . NIGERIA. 23 miles from Akui, on Akui-ondo road, 24 August 1961, Kigbo s. n. (K) ; Olokemeji Forest reserve , 1 August 1962, Gillett 15338 (K) ; Akure forest reserve, 19 August 1946, Jones 19539 (K) ; ibid., Ekiti district, 26 July 1947, Onochie 23420 (K) ; Ibadan south forest reserve, 22 August 1949, Keay 25373 (K) ; Idanre hills, 3 September 1948, Keay 22439 (K) ; Owo F. R. southern Block , 18 July 1953, Onochie 33245 (K) ; Lagos, 13 March 1905, Martin s.n. (K) ; Kabba , August 1962, Westwood 210 (K) . CAMEROON. Mbouma plantation de cacao, 650 m, 2 July 2007, Droissart et al. ( Ombrière de Yaoundé ) 578 ( BRLU) ; Village de Ma’an, UFA 09-022 (Wijma), 571 m, 6 October 2013, Droissart et al. ( Ombrière de Yaoundé ) 4671 ( BRLU) ; Réserve du Dja (collection J. P. Vautherin ), 5 August 2001, Stévart et al. 144 ( BRLU) . GABON. Région près du Cameroun, Odingoto , nord d’Oyem , 200 à 300 m, 1 October 1997, Biteau & Stévart 30 ( BRLU) ; Aburi gardens, 20 May 1938, Irvine 3034 (K) ; ibid., May 1899, Johnson 227 (K) ; Kumasi , 10 June 1958, Kmatou 3411 (K) ; Blayrey, Awaso , 13 September 1948, s. coll. 23 (K) .

Distribution:— According to Govaerts et al. (2016), Cyrtorchis hamata occurs in four countries ( Ivory Coast, Ghana, Nigeria, and Gabon), although we have not examined any material from Ghana and Gabon. We have, however, seen specimens clearly assignable to this species from two other countries: Togo and Cameroon. Cyrtorchis hamata is thus distributed in Upper and Lower Guinea Domains.

Habitat and ecology:— Epiphyte in high semi-deciduous forest and in secondary vegetation between 200 and 650 m elevation. Flowering peak in August.