An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 sidor |
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Sida 9
... light . But although the 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 ...
... light . But although the 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 ...
Sida 15
... this kinds of tissue had subsequently been observed when the investigations of a modern anatomist suddenly threw an en- Instead of being very rare , cellular tissue of this tirely new light upon the subject . CHAP . I. 15 CELLULAR TISSUE .
... this kinds of tissue had subsequently been observed when the investigations of a modern anatomist suddenly threw an en- Instead of being very rare , cellular tissue of this tirely new light upon the subject . CHAP . I. 15 CELLULAR TISSUE .
Sida 21
... light as if riddled full of holes . Upon a more accurate inspection , however , it is found to receive that appearance from its sides being filled with little pits sunk in the thickness of the lining . ( See Plate II . fig . 2. ) Of ...
... light as if riddled full of holes . Upon a more accurate inspection , however , it is found to receive that appearance from its sides being filled with little pits sunk in the thickness of the lining . ( See Plate II . fig . 2. ) Of ...
Sida 25
... light they appear more transparent than the rest of the tube . A plan of this structure is given in a cross section of two tubes in Plate II . fig . 4. , where a a represent depressions in the centre of the elevation , which depression ...
... light they appear more transparent than the rest of the tube . A plan of this structure is given in a cross section of two tubes in Plate II . fig . 4. , where a a represent depressions in the centre of the elevation , which depression ...
Sida 29
... light , as any one may satisfy himself by examining a bit of a ther- mometer tube . A better mode of judging is , perhaps , to be found in the way in which the fibre bends when the vessel is flattened . If it were a flat thread , there ...
... light , as any one may satisfy himself by examining a bit of a ther- mometer tube . A better mode of judging is , perhaps , to be found in the way in which the fibre bends when the vessel is flattened . If it were a flat thread , there ...
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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.