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FNA | Family List | FNA Vol. 8 | Sapotaceae | Sideroxylon

3. Sideroxylon foetidissimum Jacquin, Enum. Syst. Pl. 15. 1760.

False mastic False mastic

Mastichodendron foetidissimum (Jacquin) H. J. Lam; Sideroxylon mastichodendron Jacquin

Trees, to 25 m . Stems not armed, glabrous. Leaves deciduous; petiole 14-51 mm, glabrous; blade (yellow-green abaxially, lustrous dark green adaxially), elliptic to oblanceolate, 51-117 × 23-63 mm, base rounded, obtuse, or acute, margins slightly involute, undulate, apex rounded to obtuse, surfaces glabrous; venation visible, midrib sunken, marginal vein present. Inflorescences 6-12-flowered. Pedicels 4-10 mm, glabrous. Flowers: calyx 4-5 mm diam.; sepals 5, 1.7-1.9 × 1.2-1.7 mm, glabrous abaxially; petals 5, yellow, median segment elliptic to ovate, 1.8-2.5 mm, (lobed basally), lateral segments vestigial or absent; stamens 5-6, 2.8-3.9 mm; staminodes lanceolate, 1-2 mm, erose or toothed; anthers lanceolate, 1.3-1.7 mm; pistil (4-)5(-6)-carpellate; ovary (4-)5(-6)-locular, 1.2-1.4 mm, glabrous; style 1.4-2 mm. Berries yellow to orange, ellipsoid, [15-]17-21[-26] mm, glabrous. Seeds 13-20 mm.

Flowering May-Aug. Coastal hammocks; 0-50 [-600] m; Fla.; Mexico; West Indies; Central America (Belize, Guatemala).

Based on corolla lobes that lack lateral segments, seeds with endosperm, and embryos with a vertical orientation, Sideroxylonfoetidissimum has been treated as the only North American species in Mastichodendron (A. Cronquist 1945b). It is readily identified among our species because it has unarmed twigs, relatively long petioles, glabrous and lustrous leaves, and yellow corollas and fruits. It is neotropical and occurs in the flora area only in coastal Florida. Our plants belong to subsp. foetidissimum.


 

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