What Does Diaphragmed Pith Mean?

1) solid (homogenous or entire) pith is uniform soft tissues with no cavities or cross walls; 2) diaphragmed (septate) pith is solid with thin cross walls; 3) spongy pith is perforated with holes; 4) excavated pith is hollow or empty; and, 5) chambered (discoid) is an excavated pith with many cross walls.

What is a chambered pith?

Definition. Referring to a pith that has chambers in the stem caused by septations at right angles to the long axis.

What are twigs in a tree?

A twig or stick is a thin branch of a tree or bush. The buds on the twig are an important diagnostic characteristic, as are the abscission scars where the leaves have fallen away. ... There are two types of twig: vegetative twigs and fruiting spurs.