An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 19
... body , which he regards as a universal elementary organ , and calls Cytoblast . + According to this observer , the form varies from oval to lenticular and round , the colour from yellowish to a silvery white , and changing to pale ...
... body , which he regards as a universal elementary organ , and calls Cytoblast . + According to this observer , the form varies from oval to lenticular and round , the colour from yellowish to a silvery white , and changing to pale ...
Página 20
... body is formed earlier than the Cytoblast itself . It is sometimes darker , sometimes clearer than the rest of the Cytoblast ; and is usually of a firmer consistence , remaining well defined when the latter is crushed by pressure into ...
... body is formed earlier than the Cytoblast itself . It is sometimes darker , sometimes clearer than the rest of the Cytoblast ; and is usually of a firmer consistence , remaining well defined when the latter is crushed by pressure into ...
Página 66
... body ) ; l , a compound red gland from Ailanthus glandulosa ; m , oblong stalked glands from Begonia platanifolia : they resemble drops of resin , or something of that sort . Other modifications of glandular apparatus are what some ...
... body ) ; l , a compound red gland from Ailanthus glandulosa ; m , oblong stalked glands from Begonia platanifolia : they resemble drops of resin , or something of that sort . Other modifications of glandular apparatus are what some ...
Página 69
... body called an embryo , with two opposite extremities , of which the one lengthens in the direction of the earth's centre , and the other , taking a direction exactly the contrary , extends upwards into the air . This disposition to ...
... body called an embryo , with two opposite extremities , of which the one lengthens in the direction of the earth's centre , and the other , taking a direction exactly the contrary , extends upwards into the air . This disposition to ...
Página 76
... a bulb ; a scaly body , formed at or beneath the surface of the ground , emitting roots from its base , and pro- ducing a stem from its centre . Linnæus considered it the leaf - bud of a root ; but in this 76 BOOK I. ORGANOGRAPHY .
... a bulb ; a scaly body , formed at or beneath the surface of the ground , emitting roots from its base , and pro- ducing a stem from its centre . Linnæus considered it the leaf - bud of a root ; but in this 76 BOOK I. ORGANOGRAPHY .
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Palavras e frases frequentes
Adolphe Brongniart albumen anther apex appears axis bark base become body botanists Botany bracts branches buds bundles called calyx Cand Candolle carbonic acid carpels cause cavity cells cellular tissue centre chalaza character cloth colour common consists containing corolla cotyledons cyclosis developement dicotyledons direction disk Dutrochet Edition embryo epidermis exist extremity fibres filament fleshy flowers fluid foramen fruit glands grains green growing hairs hilum inches integument kind latex layers leaf leaflets leaves light Linnæus lobes Loudon margin matter medullary rays membrane Mirbel monocotyledons nature nitrogen nucleus observed organs ovarium ovary ovule oxygen parenchyma pericarp petals petiole pistil pith placenta plants Plate plumula pollen pollen tube produced quantity radicle Raphides remarked roots round seeds separate side species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow