Geonoma pinnatifrons subsp. binervia (Orsted) Henderson

Henderson, Andrew, 2011, A revision of Geonoma (Arecaceae), Phytotaxa 17, pp. 1-271 : 119

49b. Geonoma pinnatifrons subsp. binervia (Orsted) Henderson , comb. & stat. nov.

Basionym: Geonoma binervia Ørsted (1859: 33) . Type: NICARAGUA. Río San Juan: Río San Juan, 1845–1848, A. Ørsted 6564 (holotype C!).

Leaf pinnae 12(3–19) per side of rachis. Inflorescences peduncular bracts inserted 2.5(0.9–4.7) cm above the prophyll; peduncles 18.0(10.0–38.0) cm long, 13.0(9.3–20.2) mm in diameter; rachillae 15.7(8.7–28.3) cm long, 2.3(1.7–3.4) mm in diameter; fruits 4.3(3.7–5.1) mm in diameter.

Distribution and habitat:— From 7°19’– 16°04’N and 77°05’– 90°15’W in eastern Panama and adjacent Colombia with outliers in western Panama, Costa Rica, Nicaragua, and Guatemala at 282(4–725) m elevation in lowland rainforest ( Fig. 31 ).

There is one doubtful specimen (Cook 5808), missing leaves, from the Nicoya Peninsula of Costa Rica that is included here.

Figures

FIGURE 31. Distribution maps of Geonoma pinnatifrons subsp. pinnatifrons, G. pinnatifrons subsp. binervia, G. pinnatifrons subsp. martinicensis, and G. pinnatifrons subsp. membranacea.