Macrolobium
Seed, cotyledon, embryo, and testa:
M. acaciifolium (G. Bentham) G. Bentham - bottom far left cotyledon surface with intruded testa removed;
M. angustifolium (G. Bentham) R.S. Cowan - top left center cotyledon notched and concealing all but 1 margin of radicle (above) and embryonic axis (below) with stippled area depicting where cotyledons were attached to each other;
M. bifolium (J.B.C.F. Aublet) C.H. Persoon - top far left cotyledons notched and concealing radicle (L) and embryonic axis (R), testa SEMs; M. sp. - left center seed.