Morphology and Anatomy of Physical Dormancy in Ipomoea lacunosa: Identification of the Water Gap in Seeds of Convolvulaceae (Solanales)

Abstract

The transition area between elongated and square-shaped sclereid cells is the place where the water gap opens. Morphology/anatomy of the water gap in Convolvulaceae differs from that of taxa in the other 11 angiosperm plant families that produce seeds with physical dormancy for which it has been described.