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 9
... green appearance . Its chemical composition , owing to the great difficulty there is of obtaining it pure , is not ... green by chlorophyl . If a plant is grown in the dark these gran- ules remain pale colored ; but if it be exposed to ...
... green appearance . Its chemical composition , owing to the great difficulty there is of obtaining it pure , is not ... green by chlorophyl . If a plant is grown in the dark these gran- ules remain pale colored ; but if it be exposed to ...
Página 29
... green . They are found especially upon the under surface of leaves . On floating leaves , as in the Water- lily , however , we find them only on the upper surface . They occur also on the young green branches of plants L I FIG . 65 ...
... green . They are found especially upon the under surface of leaves . On floating leaves , as in the Water- lily , however , we find them only on the upper surface . They occur also on the young green branches of plants L I FIG . 65 ...
Página 45
... green layer of the bark , c , while the outer cells become developed into the cork tissue , b , and these again are invested by colorless cells , forming the epidermis , a , so that the bark , when fully formed , consists of two ...
... green layer of the bark , c , while the outer cells become developed into the cork tissue , b , and these again are invested by colorless cells , forming the epidermis , a , so that the bark , when fully formed , consists of two ...
Página 65
... green , and possess a true epidermis - that is , one with stomata ; in which particulars , therefore , aërial roots present exceptions to what is generally observed in other roots . Parasites . - There are also plants which not only ...
... green , and possess a true epidermis - that is , one with stomata ; in which particulars , therefore , aërial roots present exceptions to what is generally observed in other roots . Parasites . - There are also plants which not only ...
Página 66
... green foliage , while many others are pale , or brownish , or possess other tints than green . Parasitical plants vary in the degree of their parasitism ; the greater number are , so far as their roots are concerned , entirely dependent ...
... green foliage , while many others are pale , or brownish , or possess other tints than green . Parasitical plants vary in the degree of their parasitism ; the greater number are , so far as their roots are concerned , entirely dependent ...
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.