An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página 2
... petals of Hydrotænia meleagris ( see Bot . Reg . 1838. misc . No. 128. ) , but its extreme tenuity and firm adhesion to the tissue below it renders it difficult to detect it ; and there is no doubt that it occurs very generally in the ...
... petals of Hydrotænia meleagris ( see Bot . Reg . 1838. misc . No. 128. ) , but its extreme tenuity and firm adhesion to the tissue below it renders it difficult to detect it ; and there is no doubt that it occurs very generally in the ...
Página 10
... petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as have been described ; for in that case colours would necessarily. 10 BOOK I ...
... petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as have been described ; for in that case colours would necessarily. 10 BOOK I ...
Página 31
... petals and filaments . Mirbel states them to be sometimes as much as the 288th of an inch in diameter ; Hedwig finds them , in some cases , not exceeding the 3000th ; a very common size is the 1000th . According to the observations of ...
... petals and filaments . Mirbel states them to be sometimes as much as the 288th of an inch in diameter ; Hedwig finds them , in some cases , not exceeding the 3000th ; a very common size is the 1000th . According to the observations of ...
Página 151
... within the first . The manner also in which the petals overlap each other evidently points to a similar cause , although the fact of those pieces being inserted at different heights may not be apparent . L 4 CHAP . II . 151 FLOWER .
... within the first . The manner also in which the petals overlap each other evidently points to a similar cause , although the fact of those pieces being inserted at different heights may not be apparent . L 4 CHAP . II . 151 FLOWER .
Página 160
... petal , afterwards centrifugal . ( Tamus , Delphinium , La- burnum . ) VII . The SARMENTIDIUM + is an inflorescence of which the first evolution is centrifugal : its partial inflorescences may belong to either of the four previous forms ...
... petal , afterwards centrifugal . ( Tamus , Delphinium , La- burnum . ) VII . The SARMENTIDIUM + is an inflorescence of which the first evolution is centrifugal : its partial inflorescences may belong to either of the four previous forms ...
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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 colour common considered consists containing corolla cotyledons cyclosis developement dicotyledons direction disk distinct Dutrochet elongated embryo epidermis exist external 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 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 sometimes species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow
Passagens conhecidas
Página 593 - Dr. Ure's Dictionary of Arts, Manufactures, and Mines : Containing a clear Exposition of their Principles and Practice.