Page 135 - PG 101-Course notes مذكرة النظري 24-25 with spec

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

 Used part: entire plant.

 Use: An excellent water absorbent (It can absorb 20 times its weight of water).

B-Vascular Plants

A- Seedless Vascular Plants

 They are vascular plants contain xylem and phloem (have no flower or seed).

 Include 4 divisions. The largest is pterophyte (Ferns).

 According to the size of leaves, they are classified into:

I- Microphyllous type II- Megaphyllous type

Small leaves and large stems. Relatively larger leaves and small stems

as ferns of division Pterophyta.

▪ Lycopodium “division ▪ Whisk ferns (division Psilophyta) are

Lycophyta” or club mosses. classified as reduced ferns because

Ripe spores of Lycopoduim they lack true roots and leaves.

clavatum, Family

Lycopodiaceae. ▪ Ferns (Division Pterophyta): consist

of underground stem (rhizome) with
▪ Equisetum “division roots downwards & fronds upwards.

Sphenophyta” or horse tails. The Frond has a stem-like portion “Stipe”
sterile herb Equisetum arvense, and a green portion called lamina

Family Equisetaceae. which is divided into pinna and
pinnules. On the lower surface of

pinnules, there are many sori. A sorus

is a cluster of sporangia having spores.

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