. Botany for high schools and colleges. Botany. 1 Mg. 46.âCrystals of calcium oxalate. The right-hand portion of the figure shows two raphis-cells of the nhiibarb, with their contained raphides, and one crystal enlarged. On the left is a crys- tal from the beet. Much magnified. alents of water of crystallization ([Ca 0], 0, 0^+ 6 H, 0). They may be simple (Fig. 47) or combined into compound crystals (Kg. 46) ; many of the former are sometimes found imbedded in the sub- stance of the cell-wall of the fibre-cells of certain Gymno- sperms (Fig. ^j 47). Simple crystals oo-J cur also with- in the c
. Botany for high schools and colleges. Botany. 1 Mg. 46.âCrystals of calcium oxalate. The right-hand portion of the figure shows two raphis-cells of the nhiibarb, with their contained raphides, and one crystal enlarged. On the left is a crys- tal from the beet. Much magnified. alents of water of crystallization ([Ca 0], 0, 0^+ 6 H, 0). They may be simple (Fig. 47) or combined into compound crystals (Kg. 46) ; many of the former are sometimes found imbedded in the sub- stance of the cell-wall of the fibre-cells of certain Gymno- sperms (Fig. ^j 47). Simple crystals oo-J cur also with- in the cell- cavities of many plants. The c 0 m - pound forms are very Tarious; they almost always occur in cell-cavities, as in the beet (Fig. 46) ; and it not infrequently happens that both simple and compound crystals are found in the same plant, even in contigu- ous cells, as is the case in the onion bulb. 80. â Crystals of calcium carbonate (Ca CO3) occur less frequently than those just described. Their most striking form is that seen in the structures named cys- toliths (Fig. 48). These possess a curious structure ; a club-shaped or stalked out- growth of cellulose projects into the in- terior of a cell, and upon and in this mul- titudes of small crystals are grouped. Other forms of calcium carbonate crys- tals are to be found in plantsâ, in the Myxomycetes. According to some observers, crystals ^^^T^^.^ of calcium phosphate, calcium sulphate, â¢â¢5i« Sachs, and silica are occasionally to be met with in plants.* * See an article on plant-crystals by Dr. Lancaster in the Qr. Jr. of me. Science, 1863, p. 243 ; also articles by Professor Gulliver in the same journal for 18R4,1866. and â pig. 47.âCrystals of. 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 Bessey, Charles E. (Charles
Size: 802px × 3118px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1885
