Physiological Botany: An Abridgement of The Students' Guide to Structural, Morphological, and Physiological BotanyD. Appleton and Company, 1886 - 292 páginas |
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Página 13
... Starch granules . i , i . Intercellular spaces . ( After Sachs . ) Besides the inorganic crystals just described , it frequently happens that some of the protoplasmic matter in the cells 14 ALEURONE GRAINS . --that is , in those cells.
... Starch granules . i , i . Intercellular spaces . ( After Sachs . ) Besides the inorganic crystals just described , it frequently happens that some of the protoplasmic matter in the cells 14 ALEURONE GRAINS . --that is , in those cells.
Página 21
... parenchyma constitutes all the soft and pulpy parts . Parenchyma is connected by various intermediate condi- tions with prosenchyma , which must now be described . 22 PROSENCHYMA . 2. Prosenchyma . - The most perfect.
... parenchyma constitutes all the soft and pulpy parts . Parenchyma is connected by various intermediate condi- tions with prosenchyma , which must now be described . 22 PROSENCHYMA . 2. Prosenchyma . - The most perfect.
Página 23
... described . 3. Vessels . - A vessel is composed of several cells , united end to end , the septa dividing them being more or less completely absorbed . There are several varieties of vessels , which are known as pitted , spiral ...
... described . 3. Vessels . - A vessel is composed of several cells , united end to end , the septa dividing them being more or less completely absorbed . There are several varieties of vessels , which are known as pitted , spiral ...
Página 27
... described ( Fig . 61 , s ) . These cells are generally of a flattened tabular character ( Figs . 56 and 57 ) , the sides of which vary much in their outline ; thus , in the epidermis of the Iris they are elongated hexa- gons ( Fig . 53 ...
... described ( Fig . 61 , s ) . These cells are generally of a flattened tabular character ( Figs . 56 and 57 ) , the sides of which vary much in their outline ; thus , in the epidermis of the Iris they are elongated hexa- gons ( Fig . 53 ...
Página 34
... described as occurring between the walls of adjoining cells appear in some few cases to be filled up by solid matter , to which the name of intercellular substance has been given . CHAPTER III . ORGANS OF NUTRITION . HAVING now considered.
... described as occurring between the walls of adjoining cells appear in some few cases to be filled up by solid matter , to which the name of intercellular substance has been given . CHAPTER III . ORGANS OF NUTRITION . HAVING now considered.
Otras ediciones - Ver todas
The Student's Guide to Structural, Morphological and Physiological Botany Robert Bentley Sin vista previa disponible - 2016 |
The Student's Guide to Structural, Morphological and Physiological Botany Robert Bentley Sin vista previa disponible - 2016 |
Términos y frases comunes
absorption æstivation albumen anther antheridia antherozoids apex appearance archegonia arranged axil bark base becomes bracts branches buds called calyx carbon dioxide carpels cavity cell-wall cells Fig cellular chalaza chlorophyl coat color commonly compound consists contain corolla cotyledons cyme dehiscence described developed Dicotyledonous dissepiments elongated embryo embryo-sac epidermis external fertilization fibro-vascular bundles filaments fleshy floral flower-buds flowers fluid frequently fruit glands granules green grow growth hairs hence hilum inclosed indehiscent inflorescence inner kind layer leaf leaves less lobes matters medullary membrane micropyle Monocotyledonous nature nucleus occur organs outer ovary ovule oxygen parenchyma pericarp petals petiole pistil pith pitted placenta plants pollen pollen-cells portion primary axis produced protoplasm radicle reproductive roots seeds sepals species spiral vessels sporangium spores stalk stamens starch stem stigma stomata structure style substance surface sutures takes place termed terminal thalamus Thallophytes thickened tion tissue transverse usually valves vary walls whorls wood wood-cells
Pasajes populares
Página ii - Society, etc.; and JB HOLDER, MD, Curator of Zoology of American Museum of Natural History, Central Park, New York. 12mo, 385 pages. A COMPEND OF GEOLOGY. By JOSEPH LE CONTE, Professor of Geology and Natural History in the University of California; author of "Elements of Geology,
Página 223 - ... bundles ; or the increased size of the coming leaf-bud will snap them ; or if these causes are not in operation, a gust of wind, a heavy shower, or even the simple weight of the lamina, will be enough to disrupt the small connexions, and send the suicidal member to its grave. " Such is the history of the fall of the leaf.
Página vi - Descriptive Botany," by Eliza A. Youmans. Designed to give an elementary account of Structural and Physiological Botany, or of the inner and minute mechanism and activities of plants. It treats of what the parts of a plant are built up, and what functions they perform In its history as a living being.