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A photo like this, taken from the right point of view, evokes a (rough) dihedral symmetry ...
Leaves of Nerium oleander, an ornamental Mediterranean plant frequently used in our garden...
A view of the lower face (on the left) and the upper face (on the right) of a leaf of hede...
A photo of a Hedera helix leaf like this, taken from the right point of view, evokes a dih...
The leaf of a fern-tree evokes the sensation of symmetry: every leaf is obtained from the ...
A leaf of Hedera helix, an evergreen creeper which is commonly found in woods. From the po...
A leaf of Hedera helix, an evergreen creeper which is commonly found in woods. From the po...
Una simmetria assiale in questo fiore di orchidea; si può vedere anche da un altro punto ...
Una simmetria assiale in questo fiore di orchidea; si può vedere anche da un altro punto ...
Un fiore di tagete con una quasi perfetta simmetria diedrale di ordine 5. Se ne può ved...
