LAVENDER , CHAMOMILE & HIBISCUS

Flowers

LAVENDER FLOWER

Origin-The dried flowers of lavandula officinalis

-family Labiatae.

Powder-Colour : Grayish-blue to bluish-violet .

-Odour : aromatic. -Taste : bitter camphoraceous taste .

It is characterized by important types of glandular and non-glandular hairs:

1 )Labiatae glandular hairs: -unicellular stalk and 4-8-celled glandular head

- present on both calyx and corolla .

Basal view Top viewSide view

:2 )Non-glandular branched hairs ( -multicellular or unicellular, with pointed ends and warty

cuticle ) -present on both calyx and corolla .

3 )Whip-shaped hairs: -unicellular, non-glandular hairs .

-present on the anthers.

4 )Knotty hair: -Very important M.D.E for lavender.

5 )Hexagonal pollen grains : (- spherical with 6 germ pores .)

Active Constituents:Volatile Oils:a( Ester volatile oils )Linalyl acetate(.

b( Alcohol volatile oils )Linalool, Geraniol(

Uses-Perfuming agent in manufacture of perfumes.

- Flavoring agent.

German Chamomile

Origin-Dried, expanded flower head )capitulum( of Matricaria

chamomilla -Family Compositae

Powder-Colour: Greenish-Yellow to yellowish-brown.

-Odour : aromatic odor .

-Taste : slightly bitter taste.

1 )Spiny pollen grains:

2 )Fragment of papillosed epidermis )stigma( : - associated with cluster crystals of Ca-oxalate.

3 )Trichomes:

- Compositae glandular hairs

- Non-glandular hair : ) multicellular , uniseriate (

Active Constituents1 )Volatile oils:

- Azulene and chamazulene -bisabolol, -bisabolol oxide A and B.

2 )Flavonoids:- Apigenin, luteolin, quercetin

3 )Coumarins:- umbelliferone

Uses of Roman and German Chamomile:

1 - Aromatic bitter stomachic. 2- Stimulant.

3- Carminative. 4- Diaphoretic.

5- Antispasmodic 6- Tranquilizer

7- Anti-inflammatory 8- Protective in ulcer

Hibiscus )Roselle)

Origin -Dried calyces & epicalyces of Hibiscus sabdariffa

-Family: Malvaceae.

Powder1 )Stellate hair.

2 )Cottony non-glandullar hair . 3 )Cluster crystal of ca-oxalate.

Uses1 )Colorant and flavouring component for herbal

preparations. 2 )Traditionally:

- Astringent &cooling agent . - Diuretic .

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