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 20
... kind of parenchyma is called muriform , because the cells of which it is com- posed resemble in their form and arrangement the courses of bricks in a wall ( Fig . 26 ) ; this occurs in the medullary rays of the wood of Dicotyledonous ...
... kind of parenchyma is called muriform , because the cells of which it is com- posed resemble in their form and arrangement the courses of bricks in a wall ( Fig . 26 ) ; this occurs in the medullary rays of the wood of Dicotyledonous ...
Página 21
... kind of parenchyma is called collenchyma ; it never becomes lignified . Another variety of parenchyma is termed sclerenchyma ; this consists of cells which have become much hardened by thickening layers and lignified . In some of the ...
... kind of parenchyma is called collenchyma ; it never becomes lignified . Another variety of parenchyma is termed sclerenchyma ; this consists of cells which have become much hardened by thickening layers and lignified . In some of the ...
Página 22
... kind of woody tissue is composed of prosenchymatous cells or fibers , of moderate length and lignified ( Fig . 40 ) . A transverse section of these cells shows the thickening matter of their walls the thickness of their walls . FIG ...
... kind of woody tissue is composed of prosenchymatous cells or fibers , of moderate length and lignified ( Fig . 40 ) . A transverse section of these cells shows the thickening matter of their walls the thickness of their walls . FIG ...
Página 23
... kind of woody tissue , composed of cells with bordered pits , is sometimes distinguished under the name of Disc - bearing Woody Tissue ( Fig . 32 ) . The different kinds of woody tissue are commonly associated with other tubular organs ...
... kind of woody tissue , composed of cells with bordered pits , is sometimes distinguished under the name of Disc - bearing Woody Tissue ( Fig . 32 ) . The different kinds of woody tissue are commonly associated with other tubular organs ...
Página 25
... kind of network , sculpt- ured in relief as it were on the wall ( Fig . 51 , 9 ) . Some have also sieve - like openings through their side - walls ( Fig . 51 , si ) . These vessels are very constantly present in the inner bark of ...
... kind of network , sculpt- ured in relief as it were on the wall ( Fig . 51 , 9 ) . Some have also sieve - like openings through their side - walls ( Fig . 51 , si ) . These vessels are very constantly present in the inner bark of ...
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.