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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 and colleter development in Apocynaceae. (A, B) Aspidosperma australe. (C–E, H) Peplonia axillaris. (F–G, I) Asclepias curassavica. (A, C–E) Longitudinal sections. (B, F–I) Transversal sections. (A, B) Leaf primordia without stipules and colleters. (C) Shoot apex with developing colleters. (D) Detail of the petiolar colleter initiation. (E) Detail of the stipular colleter in pre-secretory phase. (F) Projection of the stipules from leaf primordia base. (G, H) Sheathing stipules. (I) Stipular colleters in secretory phase and in pre-secretory phase. SC = stipular colleter. Narrow arrow = stipule. Large arrow = colleter in pre-secretory phase. Arrowhead = petiolar colleter initiation.