An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página ix
... Seed · 242 Albumen - 249 Embryo · 249 Germination - 161 166 - 171 - 181 · - 192 193 210 - 211 · Hairs Scurf Glands Prickles 48 51 - 59 · 63 Naked Seeds CHAP . III . Compound 250. 252 · Organs in Flowerless Plants , or 257 · 64 Acrogens ...
... Seed · 242 Albumen - 249 Embryo · 249 Germination - 161 166 - 171 - 181 · - 192 193 210 - 211 · Hairs Scurf Glands Prickles 48 51 - 59 · 63 Naked Seeds CHAP . III . Compound 250. 252 · Organs in Flowerless Plants , or 257 · 64 Acrogens ...
Página 6
... seeds . Fig . 2. c represents them in the albumen of Alströmeria , where they are about 700 of an inch in diameter . fig . 2 . b * By what power the sedimentary matter , left on the sides of such tissue as this , is prevented from ...
... seeds . Fig . 2. c represents them in the albumen of Alströmeria , where they are about 700 of an inch in diameter . fig . 2 . b * By what power the sedimentary matter , left on the sides of such tissue as this , is prevented from ...
Página 8
... seed , for instance , is an aggregation of cells only ; after its vital principle has been excited , and it has begun to grow , woody tissue and vessels are generated in abundance . We must , therefore , either admit that all forms of ...
... seed , for instance , is an aggregation of cells only ; after its vital principle has been excited , and it has begun to grow , woody tissue and vessels are generated in abundance . We must , therefore , either admit that all forms of ...
Página 14
... the membrane that surrounds the seed of a Gourd . ( Plate I. fig . 5. ) 7. The muriform ; in the medullary rays . This consists of prismatical bladders compressed between woody tissue or vessels , with 14 BOOK I. ORGANOGRAPHY .
... the membrane that surrounds the seed of a Gourd . ( Plate I. fig . 5. ) 7. The muriform ; in the medullary rays . This consists of prismatical bladders compressed between woody tissue or vessels , with 14 BOOK I. ORGANOGRAPHY .
Página 16
... seeds . Mr. Griffith has detected it abundantly in the aërial roots of Orchidaceous plants , where in fact it is extremely common in numerous species , and Purkinje has shown , by a series of excellent observations and drawings , that ...
... seeds . Mr. Griffith has detected it abundantly in the aërial roots of Orchidaceous plants , where in fact it is extremely common in numerous species , and Purkinje has shown , by a series of excellent observations and drawings , that ...
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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.