. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . ower (blue, yellow, green, and white) and in the number of pod coils,seeds and leaflets. HISTOLOGY. Stem. The elements (Fig. 220a) arc not The tissues (Fig. 220^) arc not only striking, but of greatimportance in diagnosis. 1. Upper Epidermis. The cell walls are strongly sinuous. .Numerousstomata are scattered over the surface and occasional hairs, similar to thoseon the lower epidermis, occur at the base of the leaf. 2. Mesophyl. The ground tissue is
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . ower (blue, yellow, green, and white) and in the number of pod coils,seeds and leaflets. HISTOLOGY. Stem. The elements (Fig. 220a) arc not The tissues (Fig. 220^) arc not only striking, but of greatimportance in diagnosis. 1. Upper Epidermis. The cell walls are strongly sinuous. .Numerousstomata are scattered over the surface and occasional hairs, similar to thoseon the lower epidermis, occur at the base of the leaf. 2. Mesophyl. The ground tissue is characterless ])arcnchynKi. Rowsof crystal cells (Fig, 220/^ cr) accompany the bundles. 3. Lower Epidermis (Fig. 220b). This dilTers from the upju-r ejjidcr-mis prin( ipally in the greater number of hairs and their occurrence overthe entire surface. The hairs are of two types: (1) unicellular, warty,thick-walled, sinuous (/) and (2) capitate, smooth, thin-walled (/^). Similarhairs also occur on the ( aly.\. ALFALFA. 267 Pericarp (Fig. 220c). The hair scars of the epicarp (x) and thecrystals cells (cr) are of Fig. 2206. Alfalfa. Lower epidermis ofleaf with f^ unicellular hair, t^ capi-tate hair, and sto stoma; cr crystalcells accompanying bundles. X160. (K. B. WiNTON.)
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectplantanatomy
