In the teasels this screw-arrangement has disappeared, and has been replaced by a decussate grouping.
Some specimens have decussate stems, others bear all their leaves in whorls of three, but in respect to the hereditary tendency of the twisting character this difference does not seem to be of any importance.
The twisted parents gave as many as 41% twisted children, but the decussate atavists gave even somewhat more, viz.
This monstrosity, called biastrepsis, consists of strongly marked torsions as are seen in many species with decussate leaves, though as a rule it is very rare.
The remaining fibres pass down as the direct pyramidal tract, and decussate in the cord near their termination.
Glabrous annual or biennial with entire opposite and decussate leaves, an umbelliform inflorescence, and short-horned glands.
The pairs are placed at right angles alternately, or in what is called a decussate manner.
Labiate plants have decussate leaves, while Boraginaceae have alternate leaves, and Tiliaceae usually have distichous leaves; Rubiaceae have opposite leaves.
Posterior surface of branches concealed by large vibracula, which are placed obliquely in a double row, diverging in an upward direction from the middle line, where the vibracula of either row decussate with those of the other.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "decussate" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: bar; crisscross; cross; intersect; secant; transverse; traverse
