Glossary of "Plant Biology (1st ed.)" by Graham et al. (2003)
- Tissue composed of sclereids and fibers, both having tough cell walls that resist damage by mechanical stress or attack; occurs in seed coats, nut shells, and the pits of stone fruits such as peaches.
- Graham, L. E., Graham, J. M. & Wilcox, L. W. 2003. Plant Biology. -xxxv + 497 pp. Pearson Education, Inc., Upper Saddle River.