An Introduction to BotanyLongman, 1839 - 594 стор. |
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Сторінка 194
... placenta ( trophospermium , Richard ; spermaphorum , colum , receptacle of the seeds ) . It generally occupies the whole or a portion of one angle of each cell ( Plate V. fig . 1. e , 2. c , & c . ) , and will be spoken of more ...
... placenta ( trophospermium , Richard ; spermaphorum , colum , receptacle of the seeds ) . It generally occupies the whole or a portion of one angle of each cell ( Plate V. fig . 1. e , 2. c , & c . ) , and will be spoken of more ...
Сторінка 196
... placenta arises : see the stigma of Rosa , Prunus , Pyrus , and others . If it belongs to a single carpel , it is either undi- vided , or its divisions , if any , are placed side by side , as in Euphorbiaceae , Crocus , & c .; but if it ...
... placenta arises : see the stigma of Rosa , Prunus , Pyrus , and others . If it belongs to a single carpel , it is either undi- vided , or its divisions , if any , are placed side by side , as in Euphorbiaceae , Crocus , & c .; but if it ...
Сторінка 197
... placenta , and which is called the conducting tissue . It is more lax than that which surrounds it , and serves for the conveyance of the fertilising matter of the pollen into the ovules . Schleiden well observes that , as a style is a ...
... placenta , and which is called the conducting tissue . It is more lax than that which surrounds it , and serves for the conveyance of the fertilising matter of the pollen into the ovules . Schleiden well observes that , as a style is a ...
Сторінка 199
... placenta , which is a copious developement of cellular substance , out of which the ovules or young seeds arise . It , the placenta , originates in both margins of the carpellary leaf : but , as they are generally in a state of cohesion ...
... placenta , which is a copious developement of cellular substance , out of which the ovules or young seeds arise . It , the placenta , originates in both margins of the carpellary leaf : but , as they are generally in a state of cohesion ...
Сторінка 200
... placenta will always be turned towards the axis , or will actually meet there , forming a common centre ; and , which is a very important consequence of this law , if one carpel only , with its single placenta , be formed in a flower ...
... placenta will always be turned towards the axis , or will actually meet there , forming a common centre ; and , which is a very important consequence of this law , if one carpel only , with its single placenta , be formed in a flower ...
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Загальні терміни та фрази
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