FIGURE 1 in Implications of stipe and midrib morpho-anatomy on the taxonomy of Polypodiaceous ferns

FIGURE 1. Anatomical details of studied Polypodiaceae. A: T.S. of stipe of A. wallichiana B: Enlarged view in cross section C: Portion of midrib in P. heteractis showing prominent cuticle D – F: VB of stipe in A. wallichiana, L. involuta, P. heteractis G – I: Enlarged view of midrib section in A. wallichiana, L. involuta. P. heteractis, with indications of xylem (x), phloem (f), endodermis (en), pericycle (p), cortex (c), hypodermis (h), epidermis (ep), circumendodermal band (cb), vascular bundle (vb), cuticle (cu). Bar = 200 µm.