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American Journal of Botany, Vol 85, 305, Copyright © 1998 by Botanical Society of America, Inc.

STRUCTURE AND DEVELOPMENT

Biomechanics and functional anatomy of hollow-stemmed sphenopsids. I. Equisetum giganteum (Equisetaceae)

H Spatz, L Köhler and T Speck

The hollow stem of Equisetum giganteum owes its mechanical stability to an outer ring of strengthening tissue, which provides stiffness and strength in the longitudinal direction, but also to an inner lining of turgid parenchyma, which lends resistance to local buckling. With a height >2.5 m isolated stems are mechanically unstable. However, in dense stands individual stems support each other by interlacing with their side branches, the typical growth habit of semi-self-supporters.


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Copyright © 1998 by the Botanical Society of America, Inc.