By Betty P. Jackson
This reference paintings offers via unique drawings and concise textual content the most important to settling on less than the microscope, from dirt, scraps, dry fragments and related fabric, vegetation which are standard as medicinal drugs or as flavourings or additions to nutrition. in line with their very profitable, yet long-out-of-print instruction manual, "Powdered Vegetable Drugs", (Churchill 1968), which this new atlas now supersedes, Drs Jackson and Snowden conceal over a hundred thirty universal crops, and some more odd ones. The targeted drawings and the tabular textual content put on dealing with pages for ease of reference were designed to help fast, certain and confident id of crops from dry subject within the laboratory. The authors' event and the luck of this strategy has made their identity tools a typical in pharmaceutical, forensic and nutrients technology laboratories world-wide.
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Extra info for Atlas of Microscopy of Medicinal Plants, Culinary Herbs and Spices
D) The parenchyma and collenchyma of the cortex composed of cells with yellow-brown contents and also frequently containing starch granules and cluster crystals of calcium oxalate. The parenchyma is thin-walled; many of the cells of the collenchyma show large oval pits in the tangential walls. (e) The fragments of cork composed of thin-walled cells, polygonal in surface view; they are filled with dense reddish-brown contents. (f) The prisms and cluster crystals of calcium oxalate, which are found scattered as well as in the parenchymatous tissues.
Sclereids with strongly thickened walls. Endocarp in surface view, seen from above. Fibrous sclereids from the stalk. ) in sectional view. Endocarp cells in median focus with associated pigment layer of the testa in surface view. Endocarp cells seen from below, with associated pigment layer of the testa, in surface view. ) Pillans Rutaceae Buchu Leaves, Round Buchu, Short Buchu A greenish-yellow powder with a characteristic aromatic odour and taste. The diagnostic characters are: (a) The fragments of the lamina in surface view; the epidermal cells contain numerous crystals of diosmin and also mucilage (particularly in the upper epidermis) which stains with Solution of Ruthenium Red.
In tangential longitudinal view the medullary rays are seen to be mainly uniseriate and composed of cells with slightly thickened walls, many containing cluster crystals of calcium oxalate; when seen in radial longitudinal view the cells are thinner-walled. The sieve tubes have considerably elongated oblique end walls and the scalariformly arranged sieve plates are well marked in radial longitudinal view; in tangential longitudinal view the position of the sieve plates is shown by the irregular beading on the walls.