Plant-life: Popular Papers on the Phenomena of BotanyM. Japp, 1881 - 216 страница |
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... becomes sepa- rated from the parent cell . At times a remarkable change takes place in this plant . The protoplasm penetrates the cell - wall at two points , and protrudes in the form of two long , slender filaments ( cilia ) , which ...
... becomes sepa- rated from the parent cell . At times a remarkable change takes place in this plant . The protoplasm penetrates the cell - wall at two points , and protrudes in the form of two long , slender filaments ( cilia ) , which ...
Страница 5
... becomes thus broken up , the cell - wall opens and sets them free , each one ultimately becoming a separate plant . It is called the Zygnæma , a term which sig- . nifies yoke - thread . By gently moving our glass slide we become aware ...
... becomes thus broken up , the cell - wall opens and sets them free , each one ultimately becoming a separate plant . It is called the Zygnæma , a term which sig- . nifies yoke - thread . By gently moving our glass slide we become aware ...
Страница 10
... become dried . up by the sun . Yet if these are again placed in water they will revive almost immediately , and as soon as the rainy season commences we may search in the refilled ponds and find Diatoms in their former abundance . Dr ...
... become dried . up by the sun . Yet if these are again placed in water they will revive almost immediately , and as soon as the rainy season commences we may search in the refilled ponds and find Diatoms in their former abundance . Dr ...
Страница 12
... the cork , and se- curely fasten an empty blad- der to the upper end , we shall see that it will gradually become filled with gas . If we are chemists , we can easily find out what gas it is . 12 [ CHAP . MICROSCOPIC PLANTS .
... the cork , and se- curely fasten an empty blad- der to the upper end , we shall see that it will gradually become filled with gas . If we are chemists , we can easily find out what gas it is . 12 [ CHAP . MICROSCOPIC PLANTS .
Страница 25
... become many - sided ( poly- hedral ) , so as to occupy the least amount of space . Now in different parts of a plant we have these cells arranged and modified in different ways , and groups of cells arranged in a definite manner are ...
... become many - sided ( poly- hedral ) , so as to occupy the least amount of space . Now in different parts of a plant we have these cells arranged and modified in different ways , and groups of cells arranged in a definite manner are ...
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Чести термини и фразе
acid gas Algæ animal antheridia antherozoids anthers archegonia bear beautiful bees birds branches called carbonic cell-wall cellulose Chapter Chara chlorophyll cilia Club-moss colour conidia consists containing corolla delicate Desmids Diatoms Ecidium elaters Equisetum sylvaticum feet fernery ferns fertilisation filaments flowers fluid fronds fruit Fucus fungi germinate Gibside green grow growth heath herb honey hypha hyphæ Illustrations inches insects Isoëtes JAPP AND COMPANY'S known labellum large number leaf leaves Lichens MARSHALL JAPP microscope moisture mosses mould Mucor mycelium number of cells Orchis oxygen Penicillium petals pistil pitcher pitcher-plant plants pollen pollen grains pollinia ponds Potato fungus produced prothallus Protococcus protoplasm Puccinia readers remarkable resemblance roots round says Scale-mosses seeds seen set free side species specimens sporange sporangia spores stalk stamens starch stem stigma substance surface threads tion Torula trees tube vegetable whilst wood zoospores
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Страница 123 - And he gave it for his opinion, that whoever could make two ears of corn, or two blades of grass to grow upon a spot of ground where only one grew before, would deserve better of mankind, and do more essential service to his country, than the whole race of politicians put together.
Страница 147 - Meek creatures! the first mercy of the earth, veiling with hushed softness its dintless rocks; creatures full of pity, covering with strange and tender honor the scarred disgrace of ruin, — laying quiet finger on the trembling stones, to teach them rest.
Страница 148 - Unfading as motionless, the worm frets them not, and the autumn wastes not. Strong in lowliness, they neither blanch in heat nor pine in frost. To them, slow-fingered, constant-hearted, is entrusted the weaving of the dark, eternal tapestries of the hills ; to them, slowpencilled, iris-dyed, the tender framing of their endless imagery.
Страница 148 - And, as the earth's first mercy, so they are its last gift to us. When all other service is vain, from plant and tree, the soft mosses and gray lichen take up their watch by the headstone.
Страница 104 - If I wish for a horse-hair for my compass-sight I must go to the stable; but the hair-bird, with her sharp eyes, goes to the road. Immortal water, alive even to the superficies. Fire is the most tolerable third party. Nature made ferns for pure leaves, to show what she could do in that line.
Страница 125 - ... heath-plants were wholly changed, but twelve species of plants (not counting grasses and carices) flourished in the plantations, which could not be found on the heath. The effect on the insects must have been still greater, for six insectivorous birds were very common in the plantations, which were not to be seen on the heath ; and the heath was frequented by two or three distinct insectivorous birds.
Страница 86 - When the bee, thus provided, flies to another flower, or to the same flower a second time, and is pushed by its comrades into the bucket and then crawls out by the passage, the pollen-mass necessarily comes first into contact with the viscid stigma, and adheres to it, and the flower is fertilised.
Страница 122 - If a man walk in the woods for love of them half of each day, he is in danger of being regarded as a loafer; but if he spends his whole day as a speculator, shearing off those woods and making the earth bald before her time, he is esteemed an industrious and enterprising citizen.
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