American journal of pharmacy . nHien^ II Theil, 3 Abteilung, p. 22. Am. Jour. Pharru. iNovember, 1901. j Fruit of Cocos Nucifera. 543 (c) Soft ground tissue.—The thin-walled parenchyma cells of thesoft ground tissue are in some parts isodiametric, in other partslongitudinally elongated, and in still other parts transversely-tangentially elongated (yFig. 8, w). Wherever the brown liquidpreviously referred to has penetrated the inner layers of the meso-carp, groups of the parenchyma cells here and there, being impreg-nated with this material, are of a rich brown color and appearthicker-walled th
American journal of pharmacy . nHien^ II Theil, 3 Abteilung, p. 22. Am. Jour. Pharru. iNovember, 1901. j Fruit of Cocos Nucifera. 543 (c) Soft ground tissue.—The thin-walled parenchyma cells of thesoft ground tissue are in some parts isodiametric, in other partslongitudinally elongated, and in still other parts transversely-tangentially elongated (yFig. 8, w). Wherever the brown liquidpreviously referred to has penetrated the inner layers of the meso-carp, groups of the parenchyma cells here and there, being impreg-nated with this material, are of a rich brown color and appearthicker-walled than the others {Fig. 8, br). This brown substanceis quickly changed to a reddish color by caustic potash, but is notaffected by alcohol, ether or the specific reagents for proteids, fatsand resins. No immediate effect is produced by ferric chloridesolution, but on long standing the color is changed to olive Fig. 5. Transverse section of a large flattened (mesocarp) fiber of thecocoanut. ste, stegmata ; f sheath of bast fibers ; ph, two phloem groups ; x,txylem ; p, parenchyma of ground tissue ; a, rudimentary bundle belonging tosmall branch. X 90. (d) Fibers {Coir).—These are fibro-vascular bundles with astrongly developed sheath of bast-fibers. Toward the xylem sideof the bundle, particularly in the large fibers, the sheath usuallydiminishes in thickness and the vascular portion, as seen in crosssection, is more or less eccentric, surrounded by a crescent-shapedsheath with the horns connected by a narrower strip. In the smaller fibers there is but one group of phloem elements,but in the larger flattened fibers there are usually two, or occa- I 544 Fruit of Cocos Nucifera, {\^ov*SlLerit5u sionally more, groups separated from each other by a continuationof the sheath {Fig. j). Normally the xylem is near the inner flatside and the two phloem groups are approximately symmetricalwith refer
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Keywords: ., bookcentury1800, bookidn11amer, booksubjectpharmacy, bookyear1829
