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. 2017 Feb 10;9(1):plw083. doi: 10.1093/aobpla/plw083

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© The Authors 2017. Published by Oxford University Press on behalf of the Annals of Botany Company.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Stipule development in Apocynaceae. Transversal sections. (A–D), Blepharodon bicuspidatum. (E, F) Peplonia axillaris. (A–D) Serial sections of shoot apex showing stipule development giving rise to colleters. (E, F) Serial sections of the sheathing stipules modified into colleter. The numbers correspond to the ontogenetic sequence of the leaves formation (1–5) and their respective colleters (c). SC = stipular colleter. Narrow arrow = stipule. Large arrow = colleter in pre-secretory phase.