An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página 3
... Link says it is green in the leaves of Ruellia Sabiniana and the petiole of Cycas revoluta ; and Meyen mentions its being orange coloured in the petiole of many tropical Orchidaceæ . It is always excessively thin when first generated ...
... Link says it is green in the leaves of Ruellia Sabiniana and the petiole of Cycas revoluta ; and Meyen mentions its being orange coloured in the petiole of many tropical Orchidaceæ . It is always excessively thin when first generated ...
Página 13
... Link states that in the branch of a Pelargonium cucullatum about 1 line in diameter , he found the larger cells of a line broad , which , in an older branch of the same plant , 2 lines in diameter , the larger cells were of a line broad ...
... Link states that in the branch of a Pelargonium cucullatum about 1 line in diameter , he found the larger cells of a line broad , which , in an older branch of the same plant , 2 lines in diameter , the larger cells were of a line broad ...
Página 15
... Link distinguishes Parenchyma from Prosenchyma ; referring to the former all tissue in which the bladders ( Plate I. fig . 1 , 3. 6 , 7 , & c . ) have truncated extremities ; and to the latter , forms of tissue in which the bladders ...
... Link distinguishes Parenchyma from Prosenchyma ; referring to the former all tissue in which the bladders ( Plate I. fig . 1 , 3. 6 , 7 , & c . ) have truncated extremities ; and to the latter , forms of tissue in which the bladders ...
Página 22
... Link , and is still less of the nature of vascular tissue than the last . It consists of long , slender , uninterrupted , pitted tubes , resembling Pleurenchyma in form , but not tough , nor collected into solid bundles . This is common ...
... Link , and is still less of the nature of vascular tissue than the last . It consists of long , slender , uninterrupted , pitted tubes , resembling Pleurenchyma in form , but not tough , nor collected into solid bundles . This is common ...
Página 24
... the tubes are often or 3 , and in the Lime they average about . Link states ( Elementa , p . 85. ) that they are very large in trees of hot 1 countries . The sides of woody tissue become thickened , 24 BOOK I. ORGANOGRAPHY .
... the tubes are often or 3 , and in the Lime they average about . Link states ( Elementa , p . 85. ) that they are very large in trees of hot 1 countries . The sides of woody tissue become thickened , 24 BOOK I. ORGANOGRAPHY .
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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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