following user names refer to en.wikipedia. Picture of Cotyledon in formation at Juda-tree (Cercis siliquastrum) of (ID?). Morphology of a true leaf. Taken Mars...
Siluestris. Deutsch: Judasbaum / Wild Johannesbrot. 2. Latina: Vnifolium Cotyledon Siluestre. Deutsch: Ein Blat. 3. Latina: Lunaria Minor, seu Botrytis....