. An elementary text-book of botany, for the use of Japanese students. Botany. KINDS OF TISSUE-SYSTEMS. 113 Kinds of Eibro-vasctjlar Bundles.—Some fibro-vas- cular bundles possess a layer of generating tissue called the Cambium between the xylem and the phloem, as in the stems of the Sakura and Akamatsu; while others want the cambium, as in the Oniyuri and Nokishinobu. Those of the former kind increase the bulk of the xylem and of the phloem by the growth of cambial cells, and are said to be Open ; and those of the latter are incapable of any further growth, and are said to be Closed. iOpen Fi
. An elementary text-book of botany, for the use of Japanese students. Botany. KINDS OF TISSUE-SYSTEMS. 113 Kinds of Eibro-vasctjlar Bundles.—Some fibro-vas- cular bundles possess a layer of generating tissue called the Cambium between the xylem and the phloem, as in the stems of the Sakura and Akamatsu; while others want the cambium, as in the Oniyuri and Nokishinobu. Those of the former kind increase the bulk of the xylem and of the phloem by the growth of cambial cells, and are said to be Open ; and those of the latter are incapable of any further growth, and are said to be Closed. iOpen Fibro-vascular Bundles. Closed Fibro-vascular Bundles. The Epidermal System.—This system consists of more or less modified parenchyma. Parts of the Epider- fig. 124. mal System.—When well developed, this system is composed of a membrane, consisting of one or more layers of parenchymatous cells, perforated by numer- ous openings, and pro- FiG. 124.—Epidermis of the leaf of Vided With various pro- the Kabura, showing stomata. tuberances. The membrane is called the Epidermis; the openings through the latter, Stomata (Eig. 124); and the protuberances on the surface, Hairs. The epidermis consists of those cells which are in close juxtaposition without any intercellular spaces except at the points where it is perforated by the stomata. (See Eig. 118.) The upper cell-walls of the epidermis are usually cuti- cularized and are rendered impermeable to water; but in submersed or very young parts the epidermal cells are not. 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 Saida, Ko?taro?, 1860-1924; Tokahashi, Akiomi, joint author. Tokyo
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1893
