Hemithrinax compacta (Grisebach&Wendland)HookerexSalomon(1887:158)

Henderson, Andrew, 2023, A revision of Coccothrinax, Hemithrinax, Leucothrinax, Thrinax, and Zombia (Arecaceae), Phytotaxa 614 (1), pp. 1-115 : 92

2.1. Hemithrinax compacta (Grisebach&Wendland)HookerexSalomon(1887:158) .

Trithrinax compacta Grisebach & Wendland in Grisebach (1866: 221). Thrinax compacta (Grisebach & Wendland in Grisebach) Borhidi & Muñiz (1985: 226).

Lectotype (designated by Moya 2019):— CUBA. Or., Farallon at Cayo del Rey, 1 September 1860, C. Wright 3222 (lectotype G n.v., G image!, isolectotypes BH!, FI!, GH!, GOET n.v., GOET image!, HAC n.v., K!, LE n.v., MO n.v., MO image!, NY!, P n.v., P image!, YU n.v.)

Stems length and diameter not recorded. Leaf sheath fibers 0.3(0.1–0.4) mm diameter, few, single; petioles 16.3(11.5– 22.6) mm diameter just below the apex; palmans 41.8(28.5–51.0) cm long; segments 46(37–53) per leaf, the middle ones 94.6(73.5–107.0) cm long and 4.9(3.7–6.2) cm wide; middle leaf segment apices attenuate; leaf segments without or with well-developed transverse veinlets. Inflorescences compact amongst the leaf sheath bases; rachis bracts swollen, woody, not or sparsely tomentose; partial inflorescences 9; proximalmost rachillae straight, 5.3(3.0–6.7) cm long and 1.1(0.8–1.4) mm diameter in fruit; stamens 7(6–8); fruit pedicels 0.2(0.1–0.7) mm long; fruits 5.7–5.8 mm long and 6.0– 6.6 mm diameter, color not recorded.

Distribution and habitat:— Eastern Cuba (Holguín, Santiago de Cuba) ( Fig. 20 ) on mogotes, limestone hills, or limestone cliffs at 500(450–550) m elevation.

Taxonomic notes:— Hemithrinax compacta is notable for its few leaf sheath fibers and short, compact inflorescences borne amongst the split leaf sheath bases.

Figures

FIGURE 20. Distribution of Hemithrinax ekmaniana, H. compacta, and H. rivularis.