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Oxylobium
Fruit and seed: O. spp. - fruits (dehisced or closed) with or without calyx and seeds.
Oxylobium
Cotyledon, embryo, and testa: O. robustum J. Thompson - embryo, cotyledons, and testa SEMs.
Oxyrhynchus
Fruit and seed: O. spp. - fruits and seeds.
Oxyrhynchus
Cotyledon, embryo, and testa: O. trinervis (J.D. Smith) V.E. Rudd - embryo, cotyledons, and testa SEMs.

Oxystigma
Fruit: O. buchholzii H.A.T. Harms - bottom left fruit; O. dewevrei E.A.J. De Wildeman - right fruit; O. mannii (H.E. Baillon) H.A.T. Harms - top left fruit containing germinated seed; O. oxyphyllum (H.A.T. Harms) J.J.G. Léonard - center fruit.
Oxystigma
Seed and testa: O. dewevrei E.A.J. De Wildeman - testa SEMs; O. gilbertii J.J.G. Léonard - top left center seed; O. msoo H.A.T. Harms - bottom left seed topography; O. sp. - top far left seed.
Oxytropis
Fruit and seed: O. spp. - fruits and seeds.
Oxytropis
Cotyledon, embryo, and testa: O. pilosa (C. Linnaeus) A.P. de Candolle - embryo, cotyledons, and testa SEMs.

Pachyelasma
Seed, cotyledon, embryo, and testa: P. tessmannii (H.A.T. Harms) H.A.T. Harms - top left cotyledon investing exposed radicle (L) and embryonic axis (R), bottom far left seed topography, bottom left center seeds, testa SEMs.
Pachyelasma
Fruit and seed: P. tessmannii (H.A.T. Harms) H.A.T. Harms - top left seeds in situ, top right transverse fruit section [after Harms, 1913], bottom fruit with seed in situ.
Pachyrhizus
Fruit and seed: P. spp. - fruits and seeds.
Pachyrhizus
Cotyledon, embryo, and testa: P. erosus (C. Linnaeus) I. Urban - embryo, cotyledons, and testa SEMs.

Painteria
Fruit and seed: P. elachistophylla (A. Gray ex S. Watson) Britton & J.N. Rose - top right fruit; P. leptophylla (A.P. de Candolle) Britton & J.N. Rose - left and bottom fruits (3).
Painteria
Fruit: P. elachistophylla (A. Gray ex S. Watson) Britton & J.N. Rose - right fruits; P. leptophylla (A.P. de Candolle) Britton & J.N. Rose - left fruit
Painteria
Seed, cotyledon, embryo, and testa: P. elachistophylla (A. Gray ex S. Watson) Britton & J.N. Rose - bottom left seed; P. leptophylla (A.P. de Candolle) Britton & J.N. Rose - top left seed and testa SEMs.
Paloue
Seed, cotyledon, embryo, and testa: P. guianensis J.B.C.F. Aublet - far left cotyledon split and concealing all but tip of radicle (above) and embryonic axis (below), top left center seed topography, bottom left center seeds, testa SEMs.

Paloue
Fruit and seed: P. brasiliensis W.A. Ducke - right fruit, center seeds in situ; P. guianensis J.B.C.F. Aublet - left seed in situ.
Paloveopsis
Fruit: P. emarginata R.S. Cowan - fruits.
Panurea
Cotyledon, embryo, and testa: P. longifolia R. Spruce ex G. Bentham - embryo, cotyledons, and testa SEMs.
Panurea
Fruit: P. longifolia R. Spruce ex G. Bentham - fruit.