Plant-life: Popular Papers on the Phenomena of BotanyM. Japp, 1881 - 216 páginas |
Dentro del libro
Resultados 1-5 de 30
Página 16
... bears a consider- able resemblance to the last , though the plant is not divided into a number of cells , but is one continuous cell . A large round cell is formed at the summit of an aerial hypha , the protoplasm of which divides into ...
... bears a consider- able resemblance to the last , though the plant is not divided into a number of cells , but is one continuous cell . A large round cell is formed at the summit of an aerial hypha , the protoplasm of which divides into ...
Página 19
... inside , and at the expense of the assimilated material of the leaf . When this thread emerges into the air , as here shown , it speedily ramifies in different directions , and bears fruit 1. ] 19 MICROSCOPIC PLANTS .
... inside , and at the expense of the assimilated material of the leaf . When this thread emerges into the air , as here shown , it speedily ramifies in different directions , and bears fruit 1. ] 19 MICROSCOPIC PLANTS .
Página 20
... bears fruit at the tips of the branches , as at e , e ; these fruits b a Fig . 21 . are termed simple spores , or conidia , because from their smallness they are dust - like . It is quite possible they may be an early state of the ...
... bears fruit at the tips of the branches , as at e , e ; these fruits b a Fig . 21 . are termed simple spores , or conidia , because from their smallness they are dust - like . It is quite possible they may be an early state of the ...
Página 28
... bear a resemblance to the " rounds " of a ladder , they are termed scalariform vessels ( fig . 33 ) . All these tissues have a definite place in the struc- ture ( excepting the lowest forms ) of plants . No matter how they may be ...
... bear a resemblance to the " rounds " of a ladder , they are termed scalariform vessels ( fig . 33 ) . All these tissues have a definite place in the struc- ture ( excepting the lowest forms ) of plants . No matter how they may be ...
Página 29
... bear neither , and are called roots . These latter serve a double purpose , they fix the plant in the earth , and also imbibe moisture from it . They are never green , and they avoid the light . The stem , on the contrary , is ever ...
... bear neither , and are called roots . These latter serve a double purpose , they fix the plant in the earth , and also imbibe moisture from it . They are never green , and they avoid the light . The stem , on the contrary , is ever ...
Otras ediciones - Ver todas
Términos y frases comunes
animal antheridia antherozoids anthers archegonia bear beautiful bees Berberry branches called cell-wall Chapter Chara chlorophyll cilia Club-moss colour conidia consists containing corolla delicate Desmids Diatoms Ecidium Equisetum sylvaticum feet fernery ferns fertilisation filaments flowers fluid fronds fruit Fucus fungi germinating give graminis green grow growth heath herb honey hypha hyphæ Illustrations inches insects Isoëtes JAPP AND COMPANY'S known labellum large number leaf leaves lichen MARSHALL JAPP microscope moisture mosses mould Mucor mycelium Nature number of cells oogonium Orchis oxygen Penicillium Peronospora petals pistil pitcher pitcher-plant plants pollen pollen grains pollinia ponds Potato fungus produced prothallus Protococcus protoplasm Puccinia rain-water readers remarkable resemblance roots says Scale-moss seeds seen self-fertilisation set free side species specimens Sporange sporangia spores stalk stamens starch stem stigma substance surface tion Torula trees tube vegetable whilst wood zoospores
Pasajes populares
Página 151 - 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 106 - 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 88 - 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 151 - 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 124 - 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 116 - 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...
Página 54 - Moth-traps and spring-guns set on these grounds," might be the motto of the Orchids. There are baits to tempt the nectar-loving Lepidopteru, with rich odours exhaled at night, and lustrous colours to shine by day ; there are channels of approach along which they are surely guided, so as to compel them to pass by certain spots; there are adhesive plasters nicely adjusted to fit their probosces, or to catch their brows ; there are hair-triggers carefully set in their necessary path, communicating with...
Página 8 - The picture he gives us here of the Enticknapp household, with its Moravian and Quaker traditions, is one nearly perfect of its kind for sobriety of taste and freedom from all sentimental exaggerations.
Página 128 - But how important an element enclosure is, I plainly saw near Farnham in Surrey. Here there are extensive heaths, with a few clumps of old Scotch firs on the distant hill-tops ; within the last ten years large spaces have been enclosed, and self-sown firs are now springing up in multitudes, so close together that all cannot live. When I ascertained that these young trees had not been sown or planted, I was so much surprised at their numbers that I went to several points of view, whence I could examine...
Página 149 - Ascomycetes, a parasite which is accustomed to live upon, others' work ; its slaves are green algae, which it has sought out, or indeed caught hold of, and compelled into its service. It surrounds them, as a spider its prey, with a fibrous net of narrow meshes, which is gradually converted into an impenetrable covering ; but...