(1) We can notice that currently the framework presents three plates with the rectangular sector on the right and two plates with the rectangular sector on the left and that the framework is sinistrorse .(2) Wisteria floribunda, the Japanese wisteria, twines clockwise and W. sinensis, the Chinese wisteria, twines anti-clockwise ( sinistrorse ).(3) The reflectors are disposed along two successive helical paths, one of which is sinistrorse and the other of which is dextrorse.
