FIGURE 4 in Discussion on the taxonomy of African fern Abrodictyum rigidum (Sw.) Ebihara & Dubuisson and description of two new Abrodictyum C.Presl species (Hymenophyllaceae, Polypodiidae) for the Afro-Malagasy region

FIGURE 4. Multivariate analyses. PCA (above) and CDA (below) results for selected trait ratios. The PCA shows the contribution of each trait to overall morphological variation; the CDA shows the distribution of the four taxa in morphological 2-D trait space.