Plant-life: Popular Papers on the Phenomena of BotanyM. Japp, 1881 - 216 páginas |
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Página 1
... length of an inch . Very expensive and finely - adjusted instruments are , of course , required to enable us to see organisms só extremely minute ; but there are hundreds of inter- esting forms which may be clearly seen by simpler and ...
... length of an inch . Very expensive and finely - adjusted instruments are , of course , required to enable us to see organisms só extremely minute ; but there are hundreds of inter- esting forms which may be clearly seen by simpler and ...
Página 5
... length by the cells dividing across their width ; they increase in numbers by the protoplasm becoming broken up into many little oval bodies , each provided with two cilia or hair - like appendages , by the constant lashing of which ...
... length by the cells dividing across their width ; they increase in numbers by the protoplasm becoming broken up into many little oval bodies , each provided with two cilia or hair - like appendages , by the constant lashing of which ...
Página 14
... length of an inch . They increase in numbers by budding . A slight protuberance arises at one part of the cell - wall , and , rapidly growing , assumes the same form and size as the cell from which it sprung ; though , perhaps , before ...
... length of an inch . They increase in numbers by budding . A slight protuberance arises at one part of the cell - wall , and , rapidly growing , assumes the same form and size as the cell from which it sprung ; though , perhaps , before ...
Página 35
... length , penetrates the whole length of the style , finally entering the ovary , where it comes in contact with an ovule . As the result of this contact , the protoplasm of the pollen tube mingles with that of the ovule , cell- division ...
... length , penetrates the whole length of the style , finally entering the ovary , where it comes in contact with an ovule . As the result of this contact , the protoplasm of the pollen tube mingles with that of the ovule , cell- division ...
Página 48
... length of its own style . Such arrangements as this demonstrate most clearly the pains Nature has taken to ensure cross - fertilisation . It will be seen from the cuts that an insect visiting the long - styled flower , in pushing its ...
... length of its own style . Such arrangements as this demonstrate most clearly the pains Nature has taken to ensure cross - fertilisation . It will be seen from the cuts that an insect visiting the long - styled flower , in pushing its ...
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Términos y frases comunes
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
Pasajes populares
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 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.
Página 216 - Here is a book which should be in the hands of every boy in the kingdom in whose mind it is desirable to implant a true ideal of life, and a just notion of the proper objects of ambition ; and we may congratulate Mr. Page upon having carried out his task with all possible care and skill. ' Leaders of Men ' is every way an admirable volume.
Página 114 - She is the fairies' midwife, and she comes In shape no bigger than an agate-stone On the forefinger of an alderman, Drawn with a team of little atomies Athwart men's noses as they lie asleep : Her waggon-spokes made of long spinners...