The Wonders of Plant Life Under the MicroscopeG.P. Putnam's sons, 1883 - 248 páginas |
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Página 31
... spring . Some of them are mere outgrowths of the vegetative structure , such as spores ; others are so constituted that no further development can take place until a union with another reproductive cell is effected , the result of which ...
... spring . Some of them are mere outgrowths of the vegetative structure , such as spores ; others are so constituted that no further development can take place until a union with another reproductive cell is effected , the result of which ...
Página 34
... the fusion . The result of this conjugation is a spore , and from it springs a new colony by the process of subdivision . It is curious to observe the analogies which run through nature ; showing 34 WONDERS OF PLANT LIFE .
... the fusion . The result of this conjugation is a spore , and from it springs a new colony by the process of subdivision . It is curious to observe the analogies which run through nature ; showing 34 WONDERS OF PLANT LIFE .
Página 68
... spring innumerable delicate glassy tubes , shining with a silvery lustre . The tubes branch out here and there , and the field is covered over with myriads of tiny , perfectly spherical cells of the same diameter as the tubes . These ...
... spring innumerable delicate glassy tubes , shining with a silvery lustre . The tubes branch out here and there , and the field is covered over with myriads of tiny , perfectly spherical cells of the same diameter as the tubes . These ...
Página 82
... spring up around the fairy circumfer- ence . The colors of flowers are rivalled by the gorgeous tints of the mushrooms , crimson and orange , purple and brown , rose and blue , and a mingling of tints exquisitely tender and delicate ...
... spring up around the fairy circumfer- ence . The colors of flowers are rivalled by the gorgeous tints of the mushrooms , crimson and orange , purple and brown , rose and blue , and a mingling of tints exquisitely tender and delicate ...
Página 89
... spring , every inch of rock was covered with the curling fronds of the Marchantia polymorpha , -each leaf clinging close to the bare rock by a thousand little rootlets . This was the very plant we were hoping to find ; it is perhaps the ...
... spring , every inch of rock was covered with the curling fronds of the Marchantia polymorpha , -each leaf clinging close to the bare rock by a thousand little rootlets . This was the very plant we were hoping to find ; it is perhaps the ...
Otras ediciones - Ver todas
The Wonders of Plant Life Under the Microscope Sophia M'Ilvaine Bledsoe Herrick Vista completa - 1906 |
Términos y frases comunes
aggregation algæ animal anther antheridia antherozoids archegonia beautiful bend called cause cell sap cell wall cellular cellulose chemical chlorophyll chlorophyll bodies close color conjugation corn curious Darwin delicate desmids diams diatoms digestive disk Drosera epidermal fermentation ferns fertilization filaments flower fluid frond functions fungi fungus gemmæ germs glands green grow growth hairs honey inflection inner insect insectivorous plants jelly layers of cells leaf leaves living lobes Marchantia mass matter ment microscope mode moisture mosses mycelium Nature orchids organic ovary ovule oxygen peculiar pedicel penetrate petals petiole pistil pitcher plants pollen grains pollen tube pollinia portion possess produced prothallium protococcus protoplasm reproduction root-hairs roots Sachs Sarracenia secretion seen side species spiral sporangia spores sporogonium stamens stem stigma stomata structure substance surface takes place tentacles tiny tion tissue Torula trichomes utricles Utricularia varieties vegetable cell vessels viscid wonderful
Pasajes populares
Página 70 - The universality of the appearance of these simple forms of fungi upon all spots favourable to their development, has given rise to the belief that they are spontaneously produced by decaying substances, but there is no occasion for this mode of accounting for it, since the extraordinary means adopted by nature for the production and diffusion of the germs of these plants adequately suffices to explain the facts of the case. "The number of sporules which any one fungus may develope is almost incalculable...
Página 27 - I see no reason whatever that justice may not be done to the few fragments of soul and tatters of understanding which they may really possess. I have sometimes perhaps felt a little uneasy at Exeter Change from contrasting the monkeys with the...
Página 27 - I feel myself so much at my ease about the superiority of mankind — I have such a marked and decided contempt for the understanding of every baboon I have yet seen— I feel so sure that the blue ape without a tail will never rival us in poetry, painting, and music, that I see no reason whatever why justice may not be done to the few fragments of soul and tatters of understanding which they may really possess.
Página 203 - ... the flower ; and that the object of the flap and its sugar is also to attract insects, but with a very different result, cannot be doubted. It is hence conceivable that this marvellous plant lures insects to its flowers for one object, and feeds them while it uses them to fertilize itself, and that, this accomplished, some of its benefactors are thereafter lured to its pitchers for the sake of feeding itself...