An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 3
... tion of light , but in ferns , some fuci , and other cryptogamic plants , it is brown from its first birth : according to Röper it is green in Viscum album ; Link says it is green in the leaves of Ruellia Sabiniana and the petiole of ...
... tion of light , but in ferns , some fuci , and other cryptogamic plants , it is brown from its first birth : according to Röper it is green in Viscum album ; Link says it is green in the leaves of Ruellia Sabiniana and the petiole of ...
Página 4
... tion , as Raspail supposes . ( Chim . Org . p . 85. ) In the membrane of certain plants , as in the liber of the Oleander , in Vinca minor , and others belonging to the families of Apocynaceæ and Asclepiadaceæ , an appearance is ...
... tion , as Raspail supposes . ( Chim . Org . p . 85. ) In the membrane of certain plants , as in the liber of the Oleander , in Vinca minor , and others belonging to the families of Apocynaceæ and Asclepiadaceæ , an appearance is ...
Página 10
... tion or visible pores , so that each is completely closed up from its neighbour , as far as we can see ; although as they have the power of filtering fluids with rapidity , it is certain that they must abound in invisible pores , and ...
... tion or visible pores , so that each is completely closed up from its neighbour , as far as we can see ; although as they have the power of filtering fluids with rapidity , it is certain that they must abound in invisible pores , and ...
Página 30
... tion of elasticity and extensibility in the fibre . It is not , however , always in a distinct membrane that the spiral vessel ends . In Nepenthes the fibres terminate in a blunt cone , in which no membrane is discoverable . ( Plate II ...
... tion of elasticity and extensibility in the fibre . It is not , however , always in a distinct membrane that the spiral vessel ends . In Nepenthes the fibres terminate in a blunt cone , in which no membrane is discoverable . ( Plate II ...
Página 40
... tion of minute bladders ; in some aquatic plants they are very small , as in Butomus umbellatus . In form they are either cylindrical , or they assume the figure of the bladders by which they are formed , as in Limnocharis Plumieri ...
... tion of minute bladders ; in some aquatic plants they are very small , as in Butomus umbellatus . In form they are either cylindrical , or they assume the figure of the bladders by which they are formed , as in Limnocharis Plumieri ...
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Palavras e frases frequentes
Adolphe Brongniart albumen anther apex appears axis bark base become body botanists Botany bracts branches buds bundles called calyx Cand Candolle carbonic acid carpels cause cavity cells cellular tissue centre chalaza character cloth colour common consists containing corolla cotyledons cyclosis developement dicotyledons direction disk Dutrochet Edition embryo epidermis exist extremity fibres filament fleshy flowers fluid foramen fruit glands grains green growing hairs hilum inches integument kind latex layers leaf leaflets leaves light Linnæus lobes Loudon margin matter medullary rays membrane Mirbel monocotyledons nature nitrogen nucleus observed organs ovarium ovary ovule oxygen parenchyma pericarp petals petiole pistil pith placenta plants Plate plumula pollen pollen tube produced quantity radicle Raphides remarked roots round seeds separate side species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow