. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . Fig. 102. Buckwheat (Fagopyntm esculentiim). Cross section of the pericarp at oneof the angles showing the cpicarp, the hypoderm of sclerenchyma elements with fibro-vascular bundle {g), the brown parenchyma {p), and the inner layers of obliterated cells. X160. (MOELLER.) with a scalpel, after boihng for an hour in i\ per cent alkali to removea portion of the brown coloring Fig. 103. Buckwheat. Isolated elements of the pericarp, o epicarp; p parench>-ma(the u
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . Fig. 102. Buckwheat (Fagopyntm esculentiim). Cross section of the pericarp at oneof the angles showing the cpicarp, the hypoderm of sclerenchyma elements with fibro-vascular bundle {g), the brown parenchyma {p), and the inner layers of obliterated cells. X160. (MOELLER.) with a scalpel, after boihng for an hour in i\ per cent alkali to removea portion of the brown coloring Fig. 103. Buckwheat. Isolated elements of the pericarp, o epicarp; p parench>-ma(the upper group from a bundle); / hypoderm fibers; ep inner epidermis; sp spiralvessel. X160. (MoELLER.) I. The Epicarp Cells (0) are elongated, rounded quadrilateral andrange up to 100 a in length and 20 /« in breadth. Diagonally extended 134 GRAIN. pores on the outer wall, crossing those of the inner wall at nearlyright angles, give the layer a peculiarly characteristic latticed appear-ance. Owing also to these pores the radial walls ajjpcar indistinctlybeaded. On each of the three faces of the fruit the cells of boththe epidermis and the hypoderm are pinnately arranged either side ofthe central vein, but on the angles of the fruit they are longitudinallyextended. 2. The Hypoderm (/) consists of several layers of short fibers (upto 150 ix long, 10-15 /^ broad), with thick porous walls. The narrowcavities contain a brown substance. 3. Brown Parenchyma (p). Only a single thin layer of parenchj-mais pr
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectplantanatomy
