File:Euphorbiaceae spiny structures.jpg

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Spiny structures in Euphorbiaceae

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Description
English: Diversity of spiny structures on Euphorbiaceae

A spinose stipules and protected terminal resting bud (Bahiana occidentalis, C. Díaz S. et al. 5072, MO) B spinose stipules subtending leafy fascicles (Acidocroton litoralis, G. Proctor 10991, US) C spinose stipules as clear pairs associated with each fascicle leaf (Acidocroton verrucosus, G. Webster et al. 8463, US) D spinose branch tips (Sebastiania picardae, E. Ekman 2229, US) E spiny emergences along primary vein (abaxial, Caperonia buettneriacea, G. Hatschbach 6394, US) F intrastipular spine development (sequentially 1–3) in Philyra below stipule pairs at shoot tip (P. brasiliensis, A. Gentry et al. 51884, MO) G spiny emergences on trunk (Hura crepitans) H spiny leaf margins, p = site of petiole attachment below gland (Hippomane horrida, A. Liogier 14212, US)

I intrastipular spines mature and lignified in Philyra (same branch as F).
Date
Source https://doi.org/10.3897/phytokeys.219.95872
Author Kenneth J. Wurdack
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