Model

C. angustifolium subsp. circumvagum

C. angustifolium

C. conspersum

C. latifolium

Average value

Rectangular hyperssions model

0.530

0.536

3.560

0.596

1.306

Nonrectangular hyperssions model

0.209

0.382

0.189

0.457

0.309

Exponential model

0.049

0.037

1.476

0.274

0.459

Modified model of rectangular hyperbola

0.130

0.161

1.696

0.116

0.526

Average value

0.230

0.279

1.730

0.361

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