3.8. Koellensteinia kellneriana Reichenbach (1854: 17) .

Aganisia kellneriana (Rchb.f.) Bentham ex Hooker in Hooker (1892: t. 7270). Warrea graveolens Hort. Type:—VENEZUELA. Trujillo: [“Truxillo”], S.loc., December 1850, Wagener s.n. (lectotype, designated by Foldats (1970: 252), W-R 38125 icon!)

Koellensteinia lurida Warszcewicz, in sched. Original material:— S.loc., ex hort., s.d., Warszcewicz 203 (W-R 38124!).

Etymology:— From the first name of the same person honoured for the genus, Kellner Köllenstein.

Selected material examined:— BRAZIL. Roraima: Serra dos Surucucus, 14 February 1969, Prance et al. 9880 (HB, INPA). COLOMBIA. Antioquia: Corrego Barbosa, Ospina H. 602 (HPUJ). Cauca: La Teta, November 1902, Lehmann BT 112 (GH, K, NY). FRENCH GUIANA. Mont Chauve, 11 April 1997, Cremers & Crozier 14853 (NY). Cayenne. Saint-Georges: 21 March 1976, Sastre 4486 (HB). Potaro-Siparuni: Pakaraima Mountains, 3 February 1993, Henkel et al. 1160 (NY). GUYANA. Cuyuni-Mazaruni: Utsche, 22 May 1990, McDowell & Gopaul 2727 (COL). VENEZUELA. Bolívar: Roscio, 27 June 1983, Huber & Alarcon 7709 (VEN).

Distribution:— Guyana, French Guiana, Venezuela, Colombia and northern Brazil: Roraima. TDWG code: 82 FRG-OO GUY-OO VEN-OO 83 CLM-OO 84 BZN-RR.

Diagnostic characters:— Koellensteinia kellneriana differs from K. eburnea and K. tricolor in its green flowers with lateral lobes of the lip overlapping the midlobe when the lip is extended.