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. 2011 Mar 24;2011:plr009. doi: 10.1093/aobpla/plr009

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Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Epicuticular wax structures on surfaces (valleculae) of Equisetum subgenus Equisetum species. Scanning electron microscope images of main axis internodes (left) and internodes of the branches (right) of sterile sprouts. (A, B, D–H) Subsidiary cells (sc) with silica papillae (sp), and adjacent epidermis (ae), covered with non-oriented platelets. (C) Smooth wax film with granules on the epidermal surface (sp, silica papilla). (A+B) E. arvense, (C+D) E. telmateia, (E+F) E. sylvaticum, (G+H) E. fluviatile.