Abstract

The morphology and anatomy of stalactite· like branches occurring on old trees of Ginkgo biloba are described. The external morphology and structure of the bark are similar to that of normal branches. However, the growth rings are usually narrower than normal ones. The central portion contains many dark-coloured pith-flecks. Among the axial tracheids there are some zones of irregularly oriented tracheids and in some places the tracheids are arranged in whirls with tortuous rays among them. In the tracheids, 2-4-seriate bordered pits occur in the radial walls. Druse crystals are common.

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