. A botanical note-book for the use of students of practical botany [microform]. Botany; Plants; Botanique; Plantes. â¢4t! ANALYTICALLY ARRANGED AND KXPLALNED. Sugar occurs in the sap of most plants. Ther arc two varieties of it: cane-sugar (Ci.,H,âUii) i)ruduccd from sugar-cane, sugar-maple, beet, etc.; and (CfiHiaOo^ found in grapes, gooseberries, currants, peaches, etc. Gum or Mucilage is found in vegetable tissues. It exists largely in vegetable juices, and exudes from the bark of many trees. Fixed Oils occur in the seeds, fruits and other parts of plants. â Volatile Oils, Res
. A botanical note-book for the use of students of practical botany [microform]. Botany; Plants; Botanique; Plantes. â¢4t! ANALYTICALLY ARRANGED AND KXPLALNED. Sugar occurs in the sap of most plants. Ther arc two varieties of it: cane-sugar (Ci.,H,âUii) i)ruduccd from sugar-cane, sugar-maple, beet, etc.; and (CfiHiaOo^ found in grapes, gooseberries, currants, peaches, etc. Gum or Mucilage is found in vegetable tissues. It exists largely in vegetable juices, and exudes from the bark of many trees. Fixed Oils occur in the seeds, fruits and other parts of plants. â Volatile Oils, Resins and Caoutchouc are usually the product of special secreting cells, and are often stored in intercellular spaces or reservoirs. Crystals op Lime Salts occur in the cavities of cells and also in the cell-walls of plants. They are mostly com- posed of calcium oxalate. HaphiUs, the needle-shaped crystals found ii mono- cotyledonous plants. Vegetable Acids, either free or united with bases, occur in many plants. The principal are: Malicy found in apples, cherries, rhubarb, etc.; Tartaric, found in grapes, etc.; 6'<<nc, found in limes, lemons, etc.; Tanic, found in the bark and the leaves of oaks, elms, etc.; Oxalic, usually in combination with lime. TISSUE. The fabric formed by the multiplication of the cells. Cellular Tissue.âTissue formed of walled cells, more or less spherical in form. It is the first tissue formed, and the other varieties of tissue are but modifications of it, due principally to change m the shape of the cells, anil to thickening and hardening of the cell-walls. The soft parts of plants consist of it (Fig. i88) i rurenchyma, a general name given to ordinary mem- j branous cellular tissue. j Woody Tissue.âTissue formed of elongated cells with | thickened walls, usually tapering at the ends and over- | lapping one another. It is tenacious and elastic. The ' principal part of the wood, of the inner bark, and of the pctiiles and ribs of leaves is com
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Keywords: ., bookcentury1800, booksubjectbotany, booksubjectplants, bookyear18
