Page 138 - PG 101-Course notes مذكرة النظري 24-25 with spec

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

o They have unique characters among the

gymnosperms:

 Xylem contains vessels in addition to tracheids.
Division
 The exposed seeds of Gnetum superficially look like
Gnetophyta
fruits of flowering plants (Angiosperms).
 An important genus is Ephedra.

B-Angiosperms “Flowering plants”

Angiosperm Gymnosperms

▪ Angiosperm are flowering ▪ Gymnosperms produce flower-

with true flower or reduced. like structure (cones).

▪ Stems with xylem tissue ▪ Gymnosperms have mainly

composed in part of vessels. tracheids.

▪ Ovules and seeds of ▪ Gymnosperms: Ovules and

angiosperms are enclosed seeds are exposed.

within ovaries which

consists of one or more

closed carpels and fruits.

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