An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página 7
... side of membrane , as in the same part in Digitalis purpurea ; but its most common direction is spiral . Whether it is solid or hol- low is not quite settled ; Purkinje asserts that it is hollow , as will be hereafter mentioned ; but ...
... side of membrane , as in the same part in Digitalis purpurea ; but its most common direction is spiral . Whether it is solid or hol- low is not quite settled ; Purkinje asserts that it is hollow , as will be hereafter mentioned ; but ...
Página 16
... side of the cells elevations which give them a beautifully pitted appearance when cut across . In the subcutaneous parenchyma of the leaves of this plant the fibres of one cell are placed ex- actly opposite those of the next cell , so ...
... side of the cells elevations which give them a beautifully pitted appearance when cut across . In the subcutaneous parenchyma of the leaves of this plant the fibres of one cell are placed ex- actly opposite those of the next cell , so ...
Página 18
... side of the cell and the central mass of jelly . The following are the more important varieties : - 1. Spiral fibres repressed by mucus , but having sufficient elasticity to uncoil when the mucus is dissolved , and then breaking up into ...
... side of the cell and the central mass of jelly . The following are the more important varieties : - 1. Spiral fibres repressed by mucus , but having sufficient elasticity to uncoil when the mucus is dissolved , and then breaking up into ...
Página 20
... side is formed of the Cytoblast and convex side of the young vesicle , which is fixed upon it like the half of an hour - glass ( wie ein Uhrglas auf einer Uhr ) . The space lying between the convexity of the vesicle and the Cytoblast is ...
... side is formed of the Cytoblast and convex side of the young vesicle , which is fixed upon it like the half of an hour - glass ( wie ein Uhrglas auf einer Uhr ) . The space lying between the convexity of the vesicle and the Cytoblast is ...
Página 53
... side by side , communicating freely with a hollow chamber in the parenchyma of the leaf built up of cells , arranged in various ways . ( Fig . 14. c represents the appear- ance of the stomate in Acrostichum alcicorne when cut through ...
... side by side , communicating freely with a hollow chamber in the parenchyma of the leaf built up of cells , arranged in various ways . ( Fig . 14. c represents the appear- ance of the stomate in Acrostichum alcicorne when cut through ...
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Palavras e frases frequentes
Adolphe Brongniart anther apex appears arranged axis bark base become bladders body botanists bracts branches brown buds bundles called calyx Candolle carbonic acid carpels cavity cells cellular tissue centre chalaza colour colourless common considered consists corolla cotyledons dehiscence developement dicotyledons direction disk dissepiments distinct Dutrochet elongated embryo Endogens epidermis exist Exogens external extremity fibres fleshy flowers fluid fruit glands grains granules green growing hairs hilum indehiscent inflorescence integument kind layers leaf leaflets leaves Linnæus lobes margin matter medullary rays membrane midrib Mirb Mirbel modifications Mohl monocotyledons nature nucleus observations organs ovary ovule oxygen parenchyma peculiar pericarp petals petiole pistil pith placenta plants Plate pollen produced quantity radicle receptacle remarkable roots round seeds separate side sometimes species spiral vessels sporangium stamens stem stigma stomates structure substance surface term terminating tion tree tubes valves vascular vegetable veins wood woody tissue yellow
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