1.6. Coccothrinax bonettiana Henderson, Fernández & Bacon in Henderson et al. (2023: 102).

Type:— DOMINICAN REPUBLIC. Provincia Espaillat, Municipio Gaspar Hernández, saliendo del Poblado Río Piedras a 2 km a lo largo de la carretera, en una finca privada, 19º37’N 70º13’W, 22 m, 19 December 2021, O. Montero, T. Clase, C. Bacon & E. Fernández 435 (holotype JBSD!, isotype NY!). Plate 6

Stems 4.1(2.8–6.5) m long, diameter not recorded, solitary. Leaves more or less deciduous or only leaf bases persisting on stem; leaf sheath fibers 1.2(0.8–2.0) mm diameter, stout, woody, loosely woven, ± joined or briefly free at the apices; petioles 8.3(6.9–9.9) mm diameter just below the apex; palmans 8.5(6.4–10.8) cm long, relatively short, with the adaxial veins prominent and terminating in a slight raised ridge and distinct pulvinus; leaf blades not wedge-shaped; segments 33(30–39) per leaf, the middle ones 62.6(58.0–70.0) cm long and 2.9(2.3–3.7) cm wide; segments pendulous at the apices, giving a three-dimensional appearance to the leaf; middle leaf segments relatively long and narrow, tapering from base to apex, scarcely folded, flexible and not leathery, a shoulder or constriction absent or poorly developed, the apices thin, deeply splitting and breaking off; middle leaf segment apices attenuate; leaf segments not waxy or sometimes with a deciduous, thin layer of wax adaxially; leaf segments without indumentum, scales, or wax abaxially, with well-developed transverse veinlets. Inflorescences erect, at least initially, amongst or above the leaves, with few partial inflorescences; rachis bracts narrow, closely sheathing, sparsely tomentose, usually without hairs at the apex; partial inflorescences 4(3–5); proximalmost rachillae straight, 7.7(6.6–10.3) cm long and 1.2–1.3 mm diameter in fruit; rachillae glabrous at or near anthesis; stamens 7; fruit pedicels 0.4(0.2–0.7) mm long; fruits 7.5(7.1–7.9) mm long and 8.2(7.5–8.8) mm diameter, color not recorded; fruit surfaces smooth or sometimes with projecting fibers; seed surfaces deeply lobed, the lobes running from base of seeds almost to apices.

Distribution and habitat:— North-central Dominican Republic (Espaillat) (Fig. 10) in broadleaf forest on serpentine soils at 80(22–230) m elevation.

Taxonomic notes:— As a preliminary species, Coccothrinax bonettiana has a unique combination of qualitative character states and is recognized as a phylogenetic species. It is notable for its stout, woody, loosely woven leaf sheath fibers and segments without any indumentum abaxially, and serpentine habitat.