Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . Fig. 114.—Transverse section of Cassia cinnamon bark: k, cork; x, thick-walledcork cells; y, cork cells, the outer walls of which are thickened; phg, corkcambium; scl, stone cells; x, parenchyma cell with large pores; B, bastfibers; gR, short sclerenchyma; z, parenchyma separating the groups ofsclerenchymatous tissue; pPh, protophloem; obi, collapsed sieve; Sch,mucilage canals; php, bast parenchyma; o, oil ce
Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . Fig. 114.—Transverse section of Cassia cinnamon bark: k, cork; x, thick-walledcork cells; y, cork cells, the outer walls of which are thickened; phg, corkcambium; scl, stone cells; x, parenchyma cell with large pores; B, bastfibers; gR, short sclerenchyma; z, parenchyma separating the groups ofsclerenchymatous tissue; pPh, protophloem; obi, collapsed sieve; Sch,mucilage canals; php, bast parenchyma; o, oil cells.—After Tschirch andOesterle. being somewhat ellipsoidal or polygonal and from to in diameter; stone cells rather prominent, the walls being 254 SCIENTIFIC AND APPLIED PHARMACOGNOSY colorless, very irregular in shape, and contain either air or a reddish-brown amorphous substance; bast fibers from to mm. inlength and usually in groups of from 2 to 20 with very thick andslightly lignified walls; numerous cellular, reddish-brown fragmentsin which the oil cells are not readily Fig. 115.—Radial-longitudinal section of China Cassia (Cinnamomum Cassia)bark; pr, parenchyma of outer bark; bp, parenchyma of the inner bark,some of the cells of which contain raphides; b, bast fibers; st, stone cells;sch, mucilage cells; s, sieve; m, medullary rays.—After Moeller. Powder of Cassia Cinnamon.—(Fig. 116). Dark brown; resem-bling that of Saigon Cinnamon, but usually with fewer cork cellsand a larger number of sclerenchymatous cells and fibers. Powder of Ceylon Cinnamon.—Light- or yellowish-brown;starch grains numerous, either single or compound, the individualgrains being spheroidal or polygonal, from to mm. indiameter; bast fibers from to mm. in length, usually CINNAMON 255 single, spindle-shaped with attenuated ends, the walls being verythick and but slightly lignified; colorless stone cells resembling thoseof
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
