Page 86 - PG 101-Course notes مذكرة النظري 24-25 with spec

Medicinal plants (PG 101) Level 1 Clinical Pharmacy-PharmD

Items Dicot root Monocot root

Epidermis Consists of a single layer of parenchyma, has no cuticle, no

(piliferous stomata, outer wall may be extended into root hair.
layer)

Cortex Mostly parenchyma Some of it may be
sclerenchyma

Casparian Deposition of lignin Deposition of lignin and
strips and suberin in radial suberin in radial walls and inner
walls only tangential walls

V. B. Fewer number (2-8) Numerous (more than 8) of the
of the radial type radial type with exarch xylem
with exarch xylem arrangement

arrangement

Pith Narrow or absent Very wide (well developed)
and consists of parenchyma

cells.

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