Geonoma cuneata subsp. procumbens (Wendland ex Spruce) Henderson

Henderson, Andrew, 2011, A revision of Geonoma (Arecaceae), Phytotaxa 17, pp. 1-271 : 60

14g. Geonoma cuneata subsp. procumbens (Wendland ex Spruce) Henderson , comb. & stat. nov.

Basionym: Geonoma procumbens Wendland ex Spruce (1871: 105) . Geonoma cuneata var. procumbens (Wendland ex Spruce) Skov ex Govaerts & Dransfield (2005: 114) . Type: COSTA RICA. Heredia: Sarapiquí, 1857, H. Wendland s.n. (holotype K!).

Leaves pinnate; petioles drying green or yellowish; veins not raised or slightly raised and triangular in crosssection adaxially; rachis 71.3(42.0–108.0) cm long; pinnae 12(1–28) per side of rachis. Inflorescences staminate flowers deciduous after anthesis; non-fertilized pistillate flowers deciduous after anthesis.

Distribution and habitat:— From 7°24’– 11°43’N and 77°40’– 85°20’W in Nicaragua, Costa Rica, and Panama at 221(50–700) m elevation in lowland rainforest ( Fig. 15 ).

There are two separate populations, in Nicaragua and Costa Rica, and eastern Panama. These do not differ from each other except for two variables (apical pinna width, rachilla width–both wider in the Panama population)(t -test, P <0.05).

Two specimens (Herrera 752, 973) from the same locality in eastern Panama, and from the same locality as other specimens of subsp. procumbens , differ in their undivided leaves.

Figures

FIGURE 15. Distribution maps of Geonoma cuneata subsp. procumbens, G. cuneata subsp. rubra, G. cuneata subsp. sodiroi, and G. deneversii.