Geonoma pinnatifrons subsp. ramosissima (Burret) Henderson

Henderson, Andrew, 2011, A revision of Geonoma (Arecaceae), Phytotaxa 17, pp. 1-271 : 122

49h. Geonoma pinnatifrons subsp. ramosissima (Burret) Henderson , comb. & stat. nov.

Basionym: Geonoma ramosissima Burret (1930a: 249) . Type: COLOMBIA. Antioquia: Cieneguetas, 27 July 1880, W. Kalbreyer 1892 (holotype B, destroyed). Neotype (selected by Bernal et al. 1989): COLOMBIA. Antioquia: Mun. Frontino, Corregimiento de Murrí, road from Nutibara to La Blanquita, Río Cuevas, 950 m, 23 March 1982, R. Bernal & G. Galeano 306 (neotype COL!, isoneotype NY!).

Leaf pinnae 15(12–17) per side of rachis. Inflorescences peduncular bracts inserted 1.3(1.0–1.5) cm above the prophyll; peduncles 19.3(16.5–22.0) cm long, 18.2(15.2–21.2) mm in diameter; rachillae 11.4(7.0–16.0) cm long, 1.6(1.1–2.3) mm in diameter; fruits 3.8(3.5–4.0) mm in diameter.

Distribution:— From 3°55’– 7°00’N and 75°54’– 77°37’W on the Pacific Coast and western slopes of the Western Cordillera in Colombia, at 427(0–1150) m elevation in lowland to montane rainforest ( Fig. 32 ).

There is geographic discontinuity but too few specimens to test for differences, and too few to test for geographical variation. Three specimens (Bernal 306, Betancur 2818, Forero 7370) from higher elevations on the western slopes of the Western Cordillera appear intermediate between this subspecies and G. interrupta subsp. magnifica , and may represent hybrids. They have the flower pits densely hairy internally distally only, as in G. interrupta .

Figures

FIGURE 32. Distribution maps of Geonoma pinnatifrons subsp. mexicana, G. pinnatifrons subsp. oxycarpa, G. pinnatifrons subsp. platybothros, and G. pinnatifrons subsp. ramosissima.