Page 10 - final Practical handout PG 303-Cogno-2- 2024-2025

Clinical Pharm D Level 2 Pharmacognosy-2 (PG 303)

Item Coriander fruits Ammi visnaga fruits
‫ثمر الكزبره‬ ‫ثمر الخله البلدى‬

Morphology

✓ Whole cremocarps which are ✓ Mostly mericarp (small and
ovoid).
globular in shape.
✓ 10 wavy primary ridges and 8 ✓

prominent secondry ridges. ✓ Orthospermous endosperm.
✓ Colospermous endosperm. ✓ Slightly aromatic odour and
✓ Aromatic odour and aromatic

spicy taste. bitter taste.

✓ The transverse section of fully ✓ Creascent shaped V.B.

ripe mericarp shows only 2 vittae surrounded with lacuna??
in the commissural side but no ✓ 6 large vittae surrounded by

vittae in the dorsal one. An club-shaped cells.

almost complete ring of

T.S. sclerenchyma in the dorsal side.

Chemical ✓ Innermost layer of the ✓ Inner most layer of mesocarp is
Tests thick non- lignified porous
mesocarp consists of flattened, layer.

hexagonal thin-walled ✓ Parquetry endocarp

sclerenchyma usually adhering

to the endocarp.
✓ Parquetry endocarp

Oil is stained red with Sudan III Test for khellin: boil powdered

Ammi visnaga with water, and then

take 1-2 drops of the decoction with

solid KOH pellets, a rose red color
is produced within 2 minutes.

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