Trees. Bark usually thick and fissured. Leaves with pulvinulus always present at apex of terminal petiolule but absent from lateral petiolules; leaflet margin entire, freely ending veinlets highly branched. Flowers 4–5-merous, diplostemonous, the two series of subequal or unequal length; calyx partially synsepalous but sinuses often split to unequal depth at anthesis; petals fused at least 1/2 their length; filaments in male flowers strap-shaped and continuous with the anthers; disk and pistillode replaced by a continuous (rarely articulated) ovariodisk; in female flowers the anthers sagittate, intrastaminal annular disk present. Fruit obliquely ovoid to subglobose, maturing red or less often pale green, the valves pale red within, pseudaril white, pyrenes cartilaginous. Testa papery; cotyledons plano-convex, straight or rarely uncinately folded. Germination epigeal and phanerocotylar; first eophylls opposite, simple.
Nine species in Hispaniola, Puerto Rico, and Central America south to Bolivia and Brazil.
Original Publication: Tetragastris Gaertn., Fruct. Sem. Pl. 2: 130, t. 109, fig. 5 (1802)
Synonyms: Hedwigia Sw. (1788).
Bibliography: Daly, Kew Bull. 45: 179–194 (1990), rev.