Entandrophragma C.Dc.

Genus

Angiosperms > Sapindales > Meliaceae

Characteristics

Large trees. Leaves basically paripinnate, but leaflets sometimes alternate and leaves appearing imparipinnate. Flowers 5-merous, unisexual (plants dioecious) in large panicles. Calyx ± entire and cupuliform or with 5 acute lobes, aestivation open. Petals 5, free, contorted. Staminal tube urceolate or cup-shaped, the margin entire or shallowly or deeply lobed, with 10 shortly stalked anthers or antherodes on the margin of the tube or its lobes; appendages absent. Disk cushion-shaped, fused to the base of the ovary or pistillode, but free from the staminal tube and connected to it by 10 or 20 short ridges or partitions. Ovary 5-locular, each locule with 4–12 ovules; style-head discoid, with 5 radiating stigmatic lobes. Fruit a pendulous, elongate, woody, cigar-shaped, cylindrical or club-shaped, septifragal capsule, opening by 5 valves from the apex or base or from both simultaneously; columella softly woody, extending to the apex of the capsule, 5-angled or 5-ridged, deeply indented with the imprints of the seeds; seed-scars conspicuous or inconspicuous. Seeds with a terminal wing, 3–9 per locule, attached by the seed-end to the distal part of the columella and winged towards the base of the capsule.
More
Fruit a pendulous elongate woody septifragal capsule, cigar-shaped, fusiform, cylindric or claviform, opening by 5 valves from the apex or base or from the apex and base simultaneously; columella extending to the apex of the capsule, 5-angled or 5-ridged, softly woody, deeply indented with the imprints of seeds; seed-scars conspicuous or inconspicuous; seeds 3–8 per loculus, attached by the seed-end to the distal part of the columella, and winged towards the base of the capsule.
Ovary 5-locular, each loculus with 4–12 pendulous anatropous ovules in 2 rows; style short; style-head discoid with 5 radiating (?) stigmatic grooves on the upper surface, not completely blocking the entrance to the Staminal tube.
Disk (in our area) cushion-shaped, enveloping the base of the ovary and connected to the Staminal tube by 10 short ridges.
Staminal tube cup-shaped (in our area), margin entire with 10 anthers borne on very short filaments.
Calyx lobed in upper half or almost to base, lobes 5, aestivation open.
Petals 5, free, much longer than the calyx in bud, contorted.
Flowers (? always) monoecious, borne in panicles.
Leaves paripinnate, leaflets entire.
Trees, usually of large size.
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