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Recordoxylon
Seed, cotyledon, embryo, and testa: R. amazonicum (W.A. Ducke) W.A. Ducke - top left cotyledon notched and investing exposed radicle (L) and embryonic axis (R), bottom far left seed topography, bottom left center seeds, testa SEMs.
Requienia
Fruit and seed: R. sphaerosperma A.P. de Candolle - seeds; R. spp. - fruits.
Requienia
Cotyledon, embryo, and testa: R. sphaerosperma A.P. de Candolle - embryo, cotyledons, and testa SEMs.
Retama
Fruit and seed: R. spp. - fruits and seeds.

Retama
Cotyledon, embryo, and testa: R. sphaerocarpa (C. Linnaeus) P.E. Boissier - embryo, cotyledons, and testa SEMs.
Rhodopis
Fruit and seed: R. lowdenii W.S. Judd - top left and top center fruits; R. planisiliqua (C. Linnaeus) I. Urban - bottom center fruit and right seeds.
Rhodopis
Cotyledon, embryo, and testa: R. lowdenii W.S. Judd - embryo and cotyledons; R. planisiliqua (C. Linnaeus) I. Urban - testa SEMs.
Rhynchosia
Fruit and seed: R. spp. - fruits and seeds.

Rhynchosia
Cotyledon, embryo, and testa: R. phaseoloides (O.P. Swartz) A.P. de Candolle - embryo, cotyledons, and testa SEMs.
Rhynchotropis
Fruit and seed: R. poggei (P.H.W. Taubert) H.A.T. Harms - fruit and seeds.
Rhynchotropis
Cotyledon, embryo, and testa: R. poggei (P.H.W. Taubert) H.A.T. Harms - embryo, cotyledons, and testa SEMs.
Riedeliella
Fruit and seed: R. graciliflora H.A.T. Harms - top center fruit; R. spp. - left fruits and right seeds.

Riedeliella
Cotyledon, embryo, and testa: R. magalhaesii (C.T. Rizzini) H.C. de Lima & A.M.S. de Fonseca Vaz - embryo, cotyledons, and testa SEMs.
Robinia
Fruit and seed: R. spp. - fruits, valves, and seeds.
Robinia
Cotyledon, embryo, and testa: R. pseudoacacia C. Linnaeus - embryo, cotyledons, and testa SEMs.
Robynsiophyton
Fruit and seed: R. vanderystii R. Wilczek - fruits and seeds.

Robynsiophyton
Cotyledon, embryo, and testa: R. vanderystii R. Wilczek - embryo, cotyledons, and testa SEMS.
Rothia
Fruit and seed: R. spp. - fruits and seeds.
Rothia
Cotyledon, embryo, and testa: R. indica (C. Linnaeus) G.C. Druce - embryo, cotyledons, and testa SEMs.
Rupertia
Fruit and seed: R. physodes (D. Douglas ex W.J. Hooker) J.W. Grimes - left fruits with and without calyx and right seed.