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 3
... latter group com- prising the simpler forms of plants , and the former group those plants which present us with a more or less evident stem , bearing leaves , and , except the Liverworts and Mosses , also true roots and vessels of ...
... latter group com- prising the simpler forms of plants , and the former group those plants which present us with a more or less evident stem , bearing leaves , and , except the Liverworts and Mosses , also true roots and vessels of ...
Página 4
... latter plants are also reproduced by true seeds instead of spores , as is the case in all Cryptogamous plants which possess reproductive organs . A seed is es- sentially distinguished from a spore , by containing within itself in a ...
... latter plants are also reproduced by true seeds instead of spores , as is the case in all Cryptogamous plants which possess reproductive organs . A seed is es- sentially distinguished from a spore , by containing within itself in a ...
Página 7
... latter centripetal thick- ening . 2. The Protoplasm , as we have already seen , is the only part of the cell , and therefore of the whole plant , which is possessed of life ; and the differences in the form , size , and nature of cells ...
... latter centripetal thick- ening . 2. The Protoplasm , as we have already seen , is the only part of the cell , and therefore of the whole plant , which is possessed of life ; and the differences in the form , size , and nature of cells ...
Página 11
... latter state starch assumes its more characteristic appearance . Thus in a well - developed Potato granule ( Fig . 14 ) , we may observe a roundish dark spot , termed the nucleus or hilum , which is commonly situated near one end of the ...
... latter state starch assumes its more characteristic appearance . Thus in a well - developed Potato granule ( Fig . 14 ) , we may observe a roundish dark spot , termed the nucleus or hilum , which is commonly situated near one end of the ...
Página 13
... latter case they are usually either placed side by side , as in the stem of Rumex ( Fig . 18 ) ; or in groups radiating from a common point , so as to assume a clus- tered or conglomerate appearance , as in the stem of the common Beet ...
... latter case they are usually either placed side by side , as in the stem of Rumex ( Fig . 18 ) ; or in groups radiating from a common point , so as to assume a clus- tered or conglomerate appearance , as in the stem of the common Beet ...
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.