. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . papillae, as may be seen in transverse section, arethe outer portions of the epidermal cells, the inner portions forming acontinuous cell layer. 2. Mesophyl (m). Between the outer and inner epidermis are severallayers of chlorophyl-containing parenchyma with intercellular spaces. 3. Inner Epidermis {iep). Elongated cells with more or less wavyouthne and varying in length up to 200 fi and in breadth from 15-45 //,interspersed here and there with stomata, make up the inner
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . papillae, as may be seen in transverse section, arethe outer portions of the epidermal cells, the inner portions forming acontinuous cell layer. 2. Mesophyl (m). Between the outer and inner epidermis are severallayers of chlorophyl-containing parenchyma with intercellular spaces. 3. Inner Epidermis {iep). Elongated cells with more or less wavyouthne and varying in length up to 200 fi and in breadth from 15-45 //,interspersed here and there with stomata, make up the inner coat of thecalyx. Pericarp (Figs. 113-115). The black hulls or shells of the grain shouldbe studied in cross section and in surface preparations, the latter being X40 GR/IIN. freed from the black coloring matter by warming on the slide with causticalkali, or better by boihng for half an hour with i^ per cent sodium hvdratesolution as in the determination of crude fiber. I. Epicarp (cpi). Cross sections show that the cells are about loo «in radial diameter on the sides of the achenes and arc still hm<^cT at the aep. hy p end ae q le al Fig. 112. Black Bindweed. Cross section of calyx and anplo of fruit. C ralyx consistsof rtc/) outer epidermis, m mesophyl, and icf>mm-r cpidtrinis; /• pericarp consists offfi epicarp with -i- cuticuiar wart, p mesocarj>, and oid enflocarp: .^ spermodcrm con-sists of ae outer epidermis, q cross cells, and it- inner epidermis; E endosperm consistsof al aleurone cells and s starch cells. X i6o. (Winton.) angles. The inner wall is thin, but the (Hitcr wall and the outer j)()rii()nsof the curiously wrinkled radial walls arc strongly thickenctl. Proceedingfrom the inner wall outward, the radial walls increase in thickness untilthe much-branched cell cavity is almost obliterated. On the .^^urfaccare numerous warls from 15-30 /« in diameter, into each of which a narrowbranch of the cell cavity Surface preparations of the pericaq) w
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectplantanatomy
