Cross Section Of A Dicot Stem

A cross section of a generalized herbaceous dicot stem appears on the left.

Cross section of a dicot stem. Figure 32 11 shows a cross section of an herbaceous dicot stem. The cells are transparent and devoid of chloroplasts. The stem is square in cross section.

Note that young herbaceous stems may have stomates for gas exchange though the leaf is the main site of gas exchange with many morestomates than the stem. Stems 20 2 1 draw a neat labelled line diagram of a dicot stem cross section. Young stem of leonurus.

The vascular system in dicots comprises of the two distinct regions cortex and stele which are absent in the monocot stems. The outer walls are convex thickened and cutinised. The other important regions of the dicot stem are cortex medullary rays pericycle and pith.

ø anatomy of a dicot root primary structure can be studied through a cross section cs. Leaf and stem structures can also provide clues. Transverse section took through the internode of the stem.

ø anatomically the dicot stem has the following regions. ø the anatomy of dicot stem is studied by a t s. An herbaceous dicot stem is very similar to the apical end of a woody dicot stem where no secondary growth has taken place figure 32 2b.

In dicot stem the epidermis is the outermost layer along with the multicellular epidermal stem hairs. Vascular bundles are arranged in a circle. Flowers are not the only way to recognize a dicot.