A revision of Geonoma (Arecaceae) Author Henderson, Andrew text Phytotaxa 2011 2011-02-18 17 1 271 journal article 24911 10.11646/phytotaxa.17.1 65962ba7-eec1-40e7-aed6-cef94e99ca39 1179-3163 3538362 67g . Geonoma undata subsp. stenothyrsa (Burret) Henderson , comb. & stat. nov. Basionym: Geonoma stenothyrsa Burret (1930a: 197) . Type: COLOMBIA . Antioquia : San Carlos, 1650–2650 m , 28 January 1880 , W. Kalbreyer 1372 ( holotype B, destroyed). Neotype (designated by Bernal et al. 1989 ): COLOMBIA . Antioquia : carretera Granada-San Luis, 5.5 km adelante de El Chocó, 1750 m , 20–21 September 1987 , R. Bernal & L. Tobón 1387 ( neotype COL!, isoneotypes AAU!, BH!, NY!). Geonoma euterpoidea Burret (1930a: 196) . Type: COLOMBIA . Antioquia : Alto Guatapé, 1950 m , 26 February 1880 , W. Kalbreyer 1477 ( holotype B, destroyed). Neotype (designated by Bernal et al. 1989 ): COLOMBIA . Antioquia : Mun. Guatapé, vereda Santa Rita, ca. 1900 m , 20 May 1980 , R. Bernal & G. Galeano 190 ( neotype COL!, isoneotype NY!). Leaves veins raised and rectangular in cross-section adaxially; basal pinna 1.8(0.7–3.8) cm wide; apical pinna 4.8(0.1–8.5) cm wide. Inflorescences prophyll margins with irregular, spine-like projections; flower pits usually spirally arranged, not distantly spaced. Distribution and habitat:— From 6°01’– 6°54’N and 75°01’– 75°40’W in the Central Cordillera in Colombia ( Antioquia ) at 1675(1500–1900) m in montane rainforest ( Fig. 43 ). One specimen ( Bernal 190 , neotype of G. euterpoidea ) has leaves with more pinnae than the others (23 versus 8–13).