Pseudosamanea
Cotyledon, embryo, and testa: P. guachapele ( K.S. Kunth) H.A.T. Harms - cotyledon concealing all but tip of radicle (L) and embryonic axis (R) and testa SEMs.
Pseudosindora
Seed, cotyledon, embryo, and testa: P. palustris C.F. Symington - top left cotyledon split and gaping and concealing radicle (L) and embryonic axis (R), bottom far left seed topography, bottom left center seeds, testa SEMs.
Pterogyne
Seed, cotyledon, embryo, and testa: P. nitens E.L.R. Tulasne - top left cotyledon auriculate and concealing lower 1/2 of radicle (L) and embryonic axis (R), bottom far left seed topography, bottom left center seeds, testa SEMs.
Pterolobium
Fruit and seed: P. membranulaceum (Blanco) Merrill - bottom left fruit; P. stellatum (Forsskål) J.P.M. Brenan - bottom right fruit, top seed in situ.