Plant-life: Popular Papers on the Phenomena of BotanyM. Japp, 1881 - 216 страница |
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Страница 15
... known as the mycelium . The submerged hyphæ serve as roots to nourish the plant , and the aerial hyphæ , when they have reached a certain height , produce at their summits a chain of round cells very like Torulæ . These are the spores ...
... known as the mycelium . The submerged hyphæ serve as roots to nourish the plant , and the aerial hyphæ , when they have reached a certain height , produce at their summits a chain of round cells very like Torulæ . These are the spores ...
Страница 20
... known as ' zoospores , ' so named because they are furnished with two lash - like tails , and are capable of moving rapidly about like animalcules . This rapid movement usually lasts for about half an hour , and ( like the dust - like ...
... known as ' zoospores , ' so named because they are furnished with two lash - like tails , and are capable of moving rapidly about like animalcules . This rapid movement usually lasts for about half an hour , and ( like the dust - like ...
Страница 26
... known as fibro- vascular bundles . It is these bundles which form the midrib and " veins " of leaves and the hard part of the stem . They are made up of wood- tissue , bast - tissue , and vas- cular tissue , packed together in wedge ...
... known as fibro- vascular bundles . It is these bundles which form the midrib and " veins " of leaves and the hard part of the stem . They are made up of wood- tissue , bast - tissue , and vas- cular tissue , packed together in wedge ...
Страница 27
... , and the result is to make them appear dotted or pitted ; these are known as dotted cells or vessels ( fig . 30 ) ; in others it is de- posited in the form of a spiral thread , and 11. ] 27 PLANT STRUCTURE AND GROWTH .
... , and the result is to make them appear dotted or pitted ; these are known as dotted cells or vessels ( fig . 30 ) ; in others it is de- posited in the form of a spiral thread , and 11. ] 27 PLANT STRUCTURE AND GROWTH .
Страница 28
... known as annular vessels ( fig . 32 ) . In others , again , which are four or five sided , the new deposits take place in the form of thin bars across the sides , and as they thus bear a resemblance to the " rounds " of a ladder , they ...
... known as annular vessels ( fig . 32 ) . In others , again , which are four or five sided , the new deposits take place in the form of thin bars across the sides , and as they thus bear a resemblance to the " rounds " of a ladder , they ...
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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 Torula trees tube vegetable whilst wood zoospores
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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.
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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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