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 13b. Geonoma congesta subsp. osensis Henderson , subsp. nov. (Appendix IV, Plates 10–15) A Geonoma congesta subsp. congesta rhachillis longioribus differt. Type: COSTA RICA . Puntarenas : Esquinas Forest Preserve between Palmar Sur and Golfito on United Fruit Company railroad, 9 March 1953 , H. Moore 6534 ( holotype NY!, isotype BH!). Inflorescences rachillae 19.1(15.0–23.0) cm long. Distribution and habitat:— From 8°31’– 9°17’N and 83°17’– 83°46’W in the Osa Peninsula and adjacent areas on the Pacific slope in Costa Rica at 263(97–700) m elevation in lowland tropical rainforest ( Fig. 13 ).