Peppermint Leaf Origin its the dried over ground

Peppermint Leaf Origin: it’s the dried over ground parts of Mentha piperita F. : Labiatae. ﺍﻟﻨﻌﻨﺎﻉ

Morphology Condition : Fresh : Shape : ovate : Color : Green with dark purplish : tinge Odor : Strong aromatic : Taste : Aromatic followed by : cooling sensation Surface : Hairy Margin: serrate Apex: Acute. Base: symmetric.

1 - epidermis The cells are small, more wavy walls are thin & not beaded. Having numerous diacytic stomata 2 - Hairs Multicellular uniseriate non-glandular hairs with striated cuticle Surface preparation Glandular hairs : Labiaceous hair : very short unicellular stalk and a glandular head composed of 8 radiating cells with a common cuticle which is raised to form a spherical , bladder-like covering. Capitate hair : smaller and composed of a short unicellular stalk and a spherical unicellular head

T. S of Peppermint Leaf Upper epidermis Palisade parenchymatous cells Lower epidermis Chlorenchyma x. v. pericycle fiber parenchymatous cells Chlorenchyma

Powder and isolated elements 1. Fragment of upper epidermis from the leaves. 2. Fragments of lower epidermis from the leaves. 3. Multicellular uniseriate non-glandular hairs with striated cuticle 4. No Ca OX. 5. Glandular hairs : I. Labiaceous hair : very short unicellular stalk and a glandular head composed of 8 radiating cells with a common cuticle which is raised to form a spherical , bladder-like covering. II. Capitate hair : smaller and composed of a short unicellular stalk and a spherical unicellular head

Multicellular uniseriate non-glandular hair with striated cuticle Fragment of upper epidermis from the leaves. Capitate hair Diacytic stomata Palisade Labiaceous hair

G) Chemical test: 1 - Sudan III: V. O Red Color 2 -Vanillin test for menthol: Menthol Few drops of H 2 SO 4 conc Vanillin Orang yellow color H 2 O Violet color

Fragments of epidermal cells from the stem Labiaceous hair Fragments of lower epidermis from the leaves Capitate hair