1057. In so far as the plant is a multiplication of the primary vesicle, it consists of Cellular tissue. The anatomy of plants informs us, that there is nothing originally in the plant but cellular tissue, and that other forms first emerge or make their appearance in the sequel.
1058. The cellular tissue indicates the Indifferent in the plant, for it is only an accumulation of the indifferent primary vesicles. In so far as the plant consists thereof, is it indifference—water-plant.
1059. The cellular tissue is only oxydized, desiccated mucus. Chemistry has proved, that the wood is only oxydized mucus.
1060. The cellular tissue being the water organized and saturated with earth, or the organized mucus, has consequently the chemical function in itself of solution, homogeneous production, or formation of mucus. As therefore the plant originates, so does it enlarge. It originates as vesicle, and its growth is a constant origination of vesicles; from the Indifferent, which is the water. The sap contained in the cells consists of water and starch-granules, which constantly circulate therein in a circle.
1061. The fundamental form of the cells is the rhomboidal-dodecahedron (Kieser's Phytotomie); for around a globe only 6 others of equal size can be placed, whereby its 6 lateral surfaces are pressed in, which during the induration impart to it the form of a six-sided column. Above and below these 7 globes only 3 others admit of being placed, whereby 3 point-converging surfaces originate, which thus complete the middle globe as rhomboidal-dodecahedron.
2. EARTH-ORGAN, VASCULAR TISSUE.
1062. So long as the vesicles or cells lie as globes upon each other, triangular interspaces are found between them, which stand in conjunction with each other on all sides. As water is found in these interspaces, it is plain that they do not entirely disappear with the transformation of the cells into rhomboidal-dodecahedra. These spaces are called intercellular passages or sap-tubes, Vessels. In many plants, such as those which contain a milky juice, particular sap-tubes run through a part of these intercellular passages, and are probably formed by condensation of the sap. Both are therefore in a physiological respect of one kind. At bottom also the blood-vessels of animals are naught else but passages in felted cellular tissue.
1063. As the principal polarity of plants has been directed upwards, and the cells therefore been protracted lengthwise; so also the chief direction of the vessels is parallel with the axis of the plant.
1064. The vegetable sap ascends in these tubes, which must be therefore viewed indeed as constituting the earth-or nutritive organ.
3. AIR-ORGAN, TRACHEAL TISSUE.