An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página 8
... composed of bladders filled with little green balls . Of these some grew into long slender tubes , pointed at each end , and unquestionably adhering by one of their ends to the inside of the sac ; others from polygons passed to a ...
... composed of bladders filled with little green balls . Of these some grew into long slender tubes , pointed at each end , and unquestionably adhering by one of their ends to the inside of the sac ; others from polygons passed to a ...
Página 10
... composed of two membranes in a state of cohesion ; but the facility with which , as has just been stated , the cellules may be separated , sufficiently disproves these opinions . But although the double nature of the par- titions in ...
... composed of two membranes in a state of cohesion ; but the facility with which , as has just been stated , the cellules may be separated , sufficiently disproves these opinions . But although the double nature of the par- titions in ...
Página 15
... composed either of membrane and fibre together , or of fibre only . It is only lately that this kind has been recognised . The first observation with which I am acquainted is that of Mol- denhauer , who , in 1779 , described the leaves ...
... composed either of membrane and fibre together , or of fibre only . It is only lately that this kind has been recognised . The first observation with which I am acquainted is that of Mol- denhauer , who , in 1779 , described the leaves ...
Página 17
... composed of membrane . Mirbel has shown that the curious cells which line the anther of the common gourd are continuous membranes till just before the expansion of the flower , when they very suddenly enlarge , and their sides divide ...
... composed of membrane . Mirbel has shown that the curious cells which line the anther of the common gourd are continuous membranes till just before the expansion of the flower , when they very suddenly enlarge , and their sides divide ...
Página 21
... when boiled . It is composed of truncated cylinders , placed one upon the other , and so forming a long cylinder , which be- * Bo @ poc , a little pit . comes a tube , open from end to end when. с 3 CHAP . I. 21 PITTED TISSUE .
... when boiled . It is composed of truncated cylinders , placed one upon the other , and so forming a long cylinder , which be- * Bo @ poc , a little pit . comes a tube , open from end to end when. с 3 CHAP . I. 21 PITTED TISSUE .
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Palavras e frases frequentes
Adolphe Brongniart anther apex appears arranged axis bark base become bladders body botanists bracts branches brown buds bundles called calyx Candolle carbonic acid carpels cavity cells cellular tissue centre chalaza colour colourless common considered consists corolla cotyledons dehiscence developement dicotyledons direction disk dissepiments distinct Dutrochet elongated embryo Endogens epidermis exist Exogens external extremity fibres fleshy flowers fluid fruit glands grains granules green growing hairs hilum indehiscent inflorescence integument kind layers leaf leaflets leaves Linnæus lobes margin matter medullary rays membrane midrib Mirb Mirbel modifications Mohl monocotyledons nature nucleus observations organs ovary ovule oxygen parenchyma peculiar pericarp petals petiole pistil pith placenta plants Plate pollen produced quantity radicle receptacle remarkable roots round seeds separate side sometimes species spiral vessels sporangium stamens stem stigma stomates structure substance surface term terminating tion tree tubes valves vascular vegetable veins wood woody tissue yellow
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