Glossary of "Plant Biology (1st ed.)" by Graham et al. (2003)
- Large epidermal cells that occur in rows in grass leaves, and which are thought to play a role in leaf folding and unfolding.
- Graham, L. E., Graham, J. M. & Wilcox, L. W. 2003. Plant Biology. -xxxv + 497 pp. Pearson Education, Inc., Upper Saddle River.