General Introduction · Angiosperm is the most advanced, most evolved spermatophyte. · Angiosperm is the highly evolved plant group developed in the cretaceous period of the Mesozoic era. · Sporophytic body of the angiosperm can be divided into root, stem and leaf. · Angiosperms can be divided into two categories based on the number of cotyledons in their seed. (a) Monocots (b) Dicots based · Vascular tissue xylem and phloem are well developed. · Xylem is represented by vessels, while phloem possesses companion cells and sieve tubes. Morphology · (Morphe = form + logos = study) · It deals with the forms and features of different plant parts. · The main plant body is differentiated into (a) Root system: Roots, Root hairs. (b) Shoot system: Stem, leaves, flowers, etc. · Carolos Linnaeus is considered the father of morphology. · Root, stem, and leaves are the vegetative p...