An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página x
... Origin of Wood 309 CHAP . VI . Leaves - 324 CHAP . VII . Bracts 330 CHAP . VIII . Fertilisation Calyx and Corolla Disengagement of Caloric Sexuality of Plants denied Mules 330 Page Page 265 Hydrocyanic Acid - 388 CHAP . XIII ...
... Origin of Wood 309 CHAP . VI . Leaves - 324 CHAP . VII . Bracts 330 CHAP . VIII . Fertilisation Calyx and Corolla Disengagement of Caloric Sexuality of Plants denied Mules 330 Page Page 265 Hydrocyanic Acid - 388 CHAP . XIII ...
Página 9
... origin of the different forms of tissue may be shown to be identical , it is obviously important to distinguish them for practical purposes . I shall therefore pro- ceed henceforward to speak of them as if they were distinct in their origin ...
... origin of the different forms of tissue may be shown to be identical , it is obviously important to distinguish them for practical purposes . I shall therefore pro- ceed henceforward to speak of them as if they were distinct in their origin ...
Página 12
... origin of cells are still different from all these : see page 20 . The bladders develope , in some cases , with great rapidity . I have seen Lupinus polyphyllus grow in length at the rate of an inch and a half a day . The leaf of Urania ...
... origin of cells are still different from all these : see page 20 . The bladders develope , in some cases , with great rapidity . I have seen Lupinus polyphyllus grow in length at the rate of an inch and a half a day . The leaf of Urania ...
Página 28
... origin of the fibre is the same in both cases , and that its position with regard to the membrane is also the same . Sec- tions , moreover , may be obtained through the centre of spiral vessels , and then it is manifest that the fibre ...
... origin of the fibre is the same in both cases , and that its position with regard to the membrane is also the same . Sec- tions , moreover , may be obtained through the centre of spiral vessels , and then it is manifest that the fibre ...
Página 35
... origin and true nature is in Slack's plate , fig . 33. , in the Transactions of the Society of Arts , before referred to . Link defines them to be short spiral vessels with attenuated extremities , and regards them , in his latest works ...
... origin and true nature is in Slack's plate , fig . 33. , in the Transactions of the Society of Arts , before referred to . Link defines them to be short spiral vessels with attenuated extremities , and regards them , in his latest works ...
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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.