. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . on of bract, as they all unite to formthe fruit flesh. 1. A71 Epicarp is present only in the disc sur-rounding the style. The cells are much hkethose of the liypodcrm of the bracts, but aremore distinctly porous and conserjuently in tan-gential section appear beautifully beaded. 2. Mesocarp. The cells of tlie fruit flesh aremostly isodiametric, and although thin-walled,are often distinctly porous. Beautiful raphides(Fig. 307), often over 100 /< lonfj, occur in largenu
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . on of bract, as they all unite to formthe fruit flesh. 1. A71 Epicarp is present only in the disc sur-rounding the style. The cells are much hkethose of the liypodcrm of the bracts, but aremore distinctly porous and conserjuently in tan-gential section appear beautifully beaded. 2. Mesocarp. The cells of tlie fruit flesh aremostly isodiametric, and although thin-walled,are often distinctly porous. Beautiful raphides(Fig. 307), often over 100 /< lonfj, occur in largenumbers both singly and in bundles. Thefibro-vascular bundles consist in large part of Fig. .307. Pineapple {Ana- bast fibers with broad lumen and round pores, nassa satwa). Cross sec- _ ? tion of fruit flesh showing and broad spiral vessels often 25 ,« in diameter. raphides. X i6c. ( 77 , ^ --ni • ^ ^\ 1 3. hndocarp. The mner two or three layersare of tangentially elongated cells, those in the innermost layer, or endo-carp proper, being very narrow, usually only 10-20 11 broad. The wallsare thin DIAGNOSIS. In preserves the chief elements are the cells of the parenchymatousfruit flesh, containing large raphides (Fig. 307), and the fibro-vascularbundles, consisting chiefly of bast fibers with broad lumen and round pores,also large spiral vessels. Occasionally one finds fragments of the bracts andother outer i)arts, of which the characteristic elements are: first, the small,square epidermal cells with zigzag walls and, in the case of the outerepidermis, with silicious contents; second, the thick-walled, some-what elongated, sclerenchyma elements. PART A number of the common vegetables are seeds and fruits picked whileimmature. The mature forms of some of these are described with thelegumes (peas, bean, Lima bean), cereals (green corn), and spices(peppers) but identification of the vegetables by these descriptions isoften difficult owing
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectplantanatomy
