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 7
... becomes thickened - as will be after- ward explained by the intussusception of new molecules between the older ones , and eventually there are gener- ally developed upon it either protuberances as in the case of some pollen - cells ; or ...
... becomes thickened - as will be after- ward explained by the intussusception of new molecules between the older ones , and eventually there are gener- ally developed upon it either protuberances as in the case of some pollen - cells ; or ...
Página 11
... becomes rc- organized and stored up for future use . In this 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 ...
... becomes rc- organized and stored up for future use . In this 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 ...
Página 14
... becomes cu- bical , octahedral , tetrahedral , rhomboid . These crystalline masses are known as crystalloids or proteine crystals ( Fig . 20 ) . Small roundish and colorless albuminous grains , which are termed proteid or aleurone ...
... becomes cu- bical , octahedral , tetrahedral , rhomboid . These crystalline masses are known as crystalloids or proteine crystals ( Fig . 20 ) . Small roundish and colorless albuminous grains , which are termed proteid or aleurone ...
Página 15
... become prismatic . In the Fungi and Lichens we have a very marked form of cell . This is thin - walled and very long and thread - like , and either simple or branched . These cells are termed fibril- liform ( Fig . 29 ) . ( See page 21 ...
... become prismatic . In the Fungi and Lichens we have a very marked form of cell . This is thin - walled and very long and thread - like , and either simple or branched . These cells are termed fibril- liform ( Fig . 29 ) . ( See page 21 ...
Página 16
... become interposed between the sides of the cells , which are placed above and below them ( Fig . 42 ) . From this circumstance cells have been divided into parenchy matous and prosenchymatous ; parenchymatous being the term applied to ...
... become interposed between the sides of the cells , which are placed above and below them ( Fig . 42 ) . From this circumstance cells have been divided into parenchy matous and prosenchymatous ; parenchymatous being the term applied to ...
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.