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 67i. Geonoma undata subsp. tumucensis Henderson , subsp. nov. (Appendix IV, Plate 68) A subspeciebus aliis foveis decussatis differt. Type: SURINAME . Inselberg Talouakem, Massif des Tumuc-Humac, 2°29’N , 54°45’W , 620 m , 16 August 1993 , J.-J. de Granville, P. Acevedo, A. Boyer & L. Hollenberg 12322 ( holotype NY!, isotype US !). Leaves veins raised and rectangular in cross-section adaxially; basal pinna 3.0 cm wide; apical pinna no data. Inflorescences prophyll margins with irregular, spine-like projections; flower pits decussately arranged, not closely spaced. Distribution and habitat:— From 2°15’– 2°29’N and 54°25’– 54°45’W on the Tumuc-Humac mountains in French Guiana and Suriname at 610(600–620) m in lowland rainforest ( Fig. 44 ).