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. 44.—A, Crocus (Spanish saffron), showing two spheroidal pollen grains, afragment of stigma with papillae, and fragment of an anther; B, Calendula,showing three spinose pollen grains and fragments of corolla, the cells ofwhich contain oil-like globules; C, Carthamus (so-called American saffron),showing two slightly spinose pollen grains and a fragment of the corolla withbrown laticiferous vessels and nume
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. 44.—A, Crocus (Spanish saffron), showing two spheroidal pollen grains, afragment of stigma with papillae, and fragment of an anther; B, Calendula,showing three spinose pollen grains and fragments of corolla, the cells ofwhich contain oil-like globules; C, Carthamus (so-called American saffron),showing two slightly spinose pollen grains and a fragment of the corolla withbrown laticiferous vessels and numerous unicellular hairs.—After Weakley. Constituents.—A yellow glucoside, crocin, which is very powerful,1 part imparting a distinct yellow color to 100,000 parts of is a yellow amorphous substance which is readily soluble in waterand dilute alcohol, but only slightly soluble in absolute alcohol orether. It is colored blue with either sulphuric or nitric acid. It IRIS 113 also contains another glucoside, picrorocin, which is soluble in ether,forms prismatic crystals and yields on hydrolysis a volatile latter may be obtained on distillation to the extent of 1
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
