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 28
... margins , m , m . FIG . 61. - Vertical section of the epidermis of the Iris . s . The stoma . e , e . Epidermis . . Parenchyma be- neath the epidermis . 2. Intercellular space into which the stoma opens . FIG . 62. - Epidermis of the ...
... margins , m , m . FIG . 61. - Vertical section of the epidermis of the Iris . s . The stoma . e , e . Epidermis . . Parenchyma be- neath the epidermis . 2. Intercellular space into which the stoma opens . FIG . 62. - Epidermis of the ...
Página 52
... margins , and thus form a con- tinuous circle within the rind . These woody masses con- sist of simultaneous fibro - vascular bundles ( page 39 ) , the vessels of which are chiefly scalariform in their character ; these are situated in ...
... margins , and thus form a con- tinuous circle within the rind . These woody masses con- sist of simultaneous fibro - vascular bundles ( page 39 ) , the vessels of which are chiefly scalariform in their character ; these are situated in ...
Página 59
... margins . These adventitious buds may be produced on any part of the stem or branches , or on the margins ( Fig . 105 , b , b ) , or surface of leaves ; or , in some trees , instead of being developed on the outside of the stem or ...
... margins . These adventitious buds may be produced on any part of the stem or branches , or on the margins ( Fig . 105 , b , b ) , or surface of leaves ; or , in some trees , instead of being developed on the outside of the stem or ...
Página 69
... margins are turned upward and downward instead of the surfaces . The angle formed by the union of the upper surface of the leaf with the stem is called the axil , and everything which arises out of that point is said to be axillary to ...
... margins are turned upward and downward instead of the surfaces . The angle formed by the union of the upper surface of the leaf with the stem is called the axil , and everything which arises out of that point is said to be axillary to ...
Página 74
... margins turned upward and downward instead of their surfaces , the arrangement of the paren- chyma is similar beneath the epidermis of both the sur- faces ; while in succulent leaves the parenchyma is com- posed of cells which are ...
... margins turned upward and downward instead of their surfaces , the arrangement of the paren- chyma is similar beneath the epidermis of both the sur- faces ; while in succulent leaves the parenchyma is com- posed of cells which are ...
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.