. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Fig. 49. Sassafras. Figure 49 (1) Lignified bast fibres; (2) Starch grains. and aggregates of two or three are often found, the grains ranging in size from 7—20/x. Irregular masses of tannin are found in the parenchyma tissue, and usually there are numerous oil globules present. Fig. 49 shows the elements of sassafras which are an aid to its diagnosis when found in condimentals. SENNA. {Cassia spp.) This drug is sometimes found in condimentals. In bulk the powder has a greenish color and a characteristic
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. Fig. 49. Sassafras. Figure 49 (1) Lignified bast fibres; (2) Starch grains. and aggregates of two or three are often found, the grains ranging in size from 7—20/x. Irregular masses of tannin are found in the parenchyma tissue, and usually there are numerous oil globules present. Fig. 49 shows the elements of sassafras which are an aid to its diagnosis when found in condimentals. SENNA. {Cassia spp.) This drug is sometimes found in condimentals. In bulk the powder has a greenish color and a characteristic bitter Fig. 50. Senna. Figure 50 Non secretion hairs from leaf. Under the microscope are usually found numerous non-secretion hairs from the under side of the leaf. These are quite character- istic and vary in length from — ; are pointed, broadly awl shaped with distinct walls, and are unicellular. Fragments of the powder become reddish in color upon the addition of alkali. Calcium oxalate crystals arc found which are both rosette sha]3ed and in monoclinic [msnis from 10—35/i in length. (Fig. 50.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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