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 . umerous. Constituents.—Short buchu contains about to per centof a volatile oil, of which about 30 per cent is the crystalline bodydiosphenol; long buchu contains only about one-third as much vola-tile oil and it contains little or no diosphenol) buchu also contains 370 SCIENTIFIC AND APPLIED PHARMACOGNOSY two crystalline glucosides, diosmin and hesperidin (see AurantiiAmari Cortex); mucilage and calc
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 . umerous. Constituents.—Short buchu contains about to per centof a volatile oil, of which about 30 per cent is the crystalline bodydiosphenol; long buchu contains only about one-third as much vola-tile oil and it contains little or no diosphenol) buchu also contains 370 SCIENTIFIC AND APPLIED PHARMACOGNOSY two crystalline glucosides, diosmin and hesperidin (see AurantiiAmari Cortex); mucilage and calcium oxalate. Allied Plants.—The leaves of Barosma crenulata are occasionallyfound in the market; they are ovate, obovate or oblong-lanceolate,about twice as broad as long buchu, with a slightly toothed andglandular margin, more or less rounded summit, and yield percent of volatile oil resembling that of short buchu. Short Buchuhas been substituted by the leaves of Barosma pulchellum. Adulterants.—The leaves of Empleurum ensatum (Fam. Ruta-cese) have been offered for long buchu (see Fig. 162). They have abitter taste and yield about 1 per cent of a volatile oil which does. Fig. 163.—Transverse section through the leaf of Barosma serratifolia Willd;e, epidermal cells of upper surface, the inner walls of which are mucilage (m) frequently includes dendritic excretions of hesperidin inthe form of feather-like aggregates, which dissolve in solutions of potassiumhydroxide, giving a yellow color; p, palisade cells, some of which containrosette aggregates of calcium oxalate; c, chloronchyma, some of cells contain-ing rosette aggregates of calcium oxalate, also a large vascular bundle(mestome strand) with a stereomatic pericycle forming an arch on thedorsal face; d, epidermis of lower (or dorsal) face of the leaf.—After Sol-ereder. not contain a crystalline principle. Long Buchu has also been sub-stituted by the leaves of Empleurum serratulatum. The trifoli
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
