Identification of spearmint herbs
Herbal identification
【Powder Characteristics】
Yellowish green. The top view of a gland scale has a round top view, and the lateral view is oblate spheroid, 8 cells, 61-99 μm in diameter, often wrinkled, containing light yellow for secretion; stalk single cells, extremely short, and the epidermal cells around the base 10 More than one, arranged radially. 2 Small glandular hairs The head is elliptical, single-celled, 15-26 μm in diameter, containing pale yellowish secretions; 1-2 stalk cells. 3 The non-glandular hairs were broken and broken, and the complete ones were 1-8 cells, slightly curved, and the wall thickness was 2-7 μm, and the verrucous protrusions were denser. 4 The dermatophyte crystals are present in stem and leaf epidermal cells and parenchyma cells, light yellow, slightly fan-shaped or irregular. 5 The epidermal cells on the leaf surface are irregular and the walls are slightly curved; the lower epidermis cell wall is curved, and the cells contain pale yellow orange peels. More pores, for the straight axis.
[Microscopic identification]
Stem cross-section; epidermal cells in a row, external cuticle gingival gingival, sometimes with hair. There are obvious ridges in the four corners. There are ten columns of thick-cornered cells, and the inner edge is a series of parenchyma cells with large cell gaps. One column of endothelial cells is clearly visible. The vascular bundles are more developed at the four corners, with several small vascular bundles between adjacent two corners. The phloem is narrow. Layer formation loop. The xylem is more developed at the four corners and consists of ducts, wood parenchyma cells, and wood fibers. The pith is composed of parenchyma cells, often empty in the middle. Stem cells sometimes contain needle clusters or scallops.
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