sexine
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Definition
Glossary of Plant Systematics (1st ed.) by Simpson (2006)
- The outer, protruding layers of the exine, including columellae, tectum, and supratectal sculpturing elements.
Glossary of "The Evolution of Plants (2nd ed.)" by Willis & McElwain (2014)
- The outer layer of the exine in pollen grains.
文献（引用）
- Simpson, M. G. 2006. Plant Systematics. -xi + 590 pp. Elsevier Academic Press, Oxford.
- Willis, K. J. & McElwain, J. C. 2014. The Evolution of Plants, 2nd ed. -ix + 398 pp. Oxford University Press, Oxford.