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. 2020 Jul 2;11:881. doi: 10.3389/fpls.2020.00881

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Copyright © 2020 Gray, Liu and Facette.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Sunken and raised stomata (A–D) Agave bracena. (B–E) Begonia spp. (common house plant), (C,F) Pellionia repens (Trailing watermelon begonia). Panels (A–C) are identical scale; (D–F) are identical scale. Scale bars are 100 microns.