Valve view

The siliceous unit that lies at each end of the frustule. The two valves are linked by the girdle bands.

The morphology of the valve provides many of the features used to classify diatoms.


Round, F.E., Crawford, R.M. and Mann, D.G. (1990). The Diatoms. Biology and Morphology of the Genera. Cambridge University Press, Cambridge, 747 pp.