Table 2: Eigenvalues, cumulative percent variation, and eigenvectors of the first three principal components axes for the eight architecture variables of longistylous and brevistylous P. rigida inflorescences.

Axis 1

Axis 2

Axis 3

Eigenvalue

3.246

1.622

0.883

Percent variation

20.27

Percent variation as expected by the broken stick model