16c. Geonoma deversa subsp. peninsularis Henderson, subsp. nov. (Appendix IV, Plate 26)

A Geonoma deversa subsp. deversa rachide longiore atque pedunculo latiore differt.

Type: COSTA RICA. Puntarenas: Reserva Forestal Golfo Dulce, Cantón de Osa, Rancho Quemado, ca. 15 km W of Rincón, 8°42’N, 83°33’W, 250 m, 6 June 1992, A. Henderson, G. Galeano & B. Hammel 1817 (holotype CR!, isotype NY!).

Leaf rachis 64.5(46.5–85.0) cm long. Inflorescences peduncles 6.9(4.6–9.0) mm in diameter; rachillae 1.8(1.1–2.6) mm in diameter.

Distribution and habitat:— From 8°27’– 8°58’N and 83°14’– 83°40’W in the Osa Peninsula and adjacent areas of Costa Rica at 287(65–744) m elevation in lowland rainforest (Fig. 16).

There is a sympatric population of subsp. deversa occurring just to the northeast of the Osa Peninsula.