An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 sidor |
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Sida 16
... exists in these parts are far more various than those of membranous cellular tissue . The principal varieties are these : - A. Membrane and Fibre combined . 1. Fibres twisted spirally , adhering to a spheroidal or angu- lar membrane ...
... exists in these parts are far more various than those of membranous cellular tissue . The principal varieties are these : - A. Membrane and Fibre combined . 1. Fibres twisted spirally , adhering to a spheroidal or angu- lar membrane ...
Sida 31
... exist in the bark of Urtica nivea , it seems that there is some inaccuracy in Don's remark . The situation of spiral vessels is in that part of the axis of the stem surrounding the pith , and called the medullary sheath , and also in ...
... exist in the bark of Urtica nivea , it seems that there is some inaccuracy in Don's remark . The situation of spiral vessels is in that part of the axis of the stem surrounding the pith , and called the medullary sheath , and also in ...
Sida 32
... exist . My friend , Mr. Griffith , has succeeded in unrolling them in the young shoots of Lycopodium denticulatum , and Mr. Quekett in Diplagium seramporense . Some have thought that the spiral vessels terminate in those 32 BOOK I ...
... exist . My friend , Mr. Griffith , has succeeded in unrolling them in the young shoots of Lycopodium denticulatum , and Mr. Quekett in Diplagium seramporense . Some have thought that the spiral vessels terminate in those 32 BOOK I ...
Sida 37
... exist . When they do exist , they are called Intercellular passages . D 3 CHAP . I. 37 INTERCELLULAR PASSAGES . Axis.
... exist . When they do exist , they are called Intercellular passages . D 3 CHAP . I. 37 INTERCELLULAR PASSAGES . Axis.
Sida 38
... exist in the form of little holes at every angle of the hexagons of which the partitions in that plant consist ; and are , no doubt , there intended as a beau- tiful contrivance to enable air to pass freely from one cavity to another ...
... exist in the form of little holes at every angle of the hexagons of which the partitions in that plant consist ; and are , no doubt , there intended as a beau- tiful contrivance to enable air to pass freely from one cavity to another ...
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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
Populära avsnitt
Sida 593 - Dr. Ure's Dictionary of Arts, Manufactures, and Mines : Containing a clear Exposition of their Principles and Practice.