The transverse section petiole of Origanum majorana ( Maruva ) plant and staining with safranine

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The petiole is slender and long. The base of the petiole is striate and slightly twisted. The transverse section of petiole is more or less circular in outline. It shows single layered epidermis and a wide zone of cortex , single layered endodermis, wavy arrangement of 4 layers of fibrous pericycle and central parenchymatous pith and in outer layer glandular hair are presented.

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