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Annonaceae
Monodora grandidieri Baill.
Nomenclature
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Tribe: MonodoreaeGenus: Monodora
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Synonyms: 4
SUMMARY
Tree to 10-12 m tall, much branched; d.b.h. to 15 cm; outer bark grey or brown, fairly smooth and faintly longitudinally striate, sometimes pealing off; young branches green, densely covered with short erect hairs to glabrous; old branches black with white lenticels, glabrous to sparsely covered with short erect hairs. Petioles 2-6 mm long, 1.5-2.5 mm in diameter, densely covered with short erect hairs, rarely glabrous, leaf lamina inserted on top, broadly grooved adaxially. Leaf lamina 4-23(-25) cm long, 3-10 cm wide, length:width ratio 1.5-3.5, narrowly obovate to obovate, base cordate, apex acuminate, acumen ca. 15 mm long, papyraceous when young becoming coriaceous when old, densely to sparsely covered with short appressed hairs to glabrous on both sides, young emerging leaves always densely to very sparsely covered with short appressed hairs; midrib adaxially impressed towards the base, covered with short appressed hairs to glabrous on both sides; secondary veins 9-14(-19) pairs, uniformally curving upwards, covered with short appressed hairs to glabrous. Flowers single, leaf-opposed, developing from young shoots before or during leaf flush, pendulous. Flowering pedicels (6-)20-50(-80) mm long, 1-1.5 mm in diameter, densely to sparsely covered with short erect hairs, rarely glabrous. Upper bract inserted at the center to subapical to the pedicel, curving upwards, 4-10(-20) mm long, 4-10 mm wide, length:width ratio 0.7-2, broadly ovate to ovate, base decurrent, apex attenuate to acute, densely covered with short erect hairs, green, dark red at base, reflexed upwards, margins undulate, densely covered with short erect hairs. Sepals 5-15(-20) mm long, 5-7 mm wide, length:width ratio 1.8-5, elliptic to narrowly elliptic, base truncate, apex acute, densely covered with short appressed hairs outside, sparsely covered with short appressed hairs inside, green to red brown with green veins, margins undulate, densely covered with short appressed hairs. Outer petals (10-)15-60(-70) mm long, 3-12(-18) mm wide, length:width ratio 3.3-12, narrowly oblong to linear or spatulate, base truncate, apex acute, sparsely covered with short appressed hairs on both surfaces, green to yellow horizontally streaked with red-purple markings becoming bright white at base, spreading horizontally and curving downwards towards the end; margins undulate, densely covered with short erect hairs. Inner petals (4-)6-10(-12) mm long, 5-15 mm wide, length:width ratio 0.4-1.3, clawed cordate, base cordate, apex acute, densely covered with erect ca. 1.5 mm long hairs around the center inside, sparsely covered with short appressed hairs outside, white with red-brown veins and yellowish to red margins, connivent by margins; margins undulate, densely covered with short appressed hairs; claw incurved, 5-15 mm long, 2-4 mm wide, claw:inner petal ratio 0.4-1.2(-1.5), sparsely covered with short erect hairs to glabrous, white. Receptacle 4-5 mm in diameter, slightly convex. Stamens in 5-7 rows, ca. 1.5 mm long, connective shield ca. 0.2 mm long, glabrous, white, those of innermost row not elongate over ovary wall. Ovary ca. 2 mm long, ca. 1 mm wide; stigma 1.5-2 mm in diameter, sparsely covered with short erect hairs, yellow. Fruiting pedicels 1,5-3 cm long, 3-4 mm in diameter, glabrous to densely covered with short appressed hairs. Fruits 45-65 mm long, 35-45 mm wide, globose to obovoid, minutely rugose, covered with short erect hairs to sparsely covered with short erect hairs; pericarp 2-4 mm thick. Seeds10-18 mm long, 5-11 mm wide, transversely ellipsoid, packed in white pulp; testa smooth, light brown; raphe slightly thickened, brown; hilum 6-7 mm long, 2-3 mm wide, narrowly elliptical.