Stamen Sentence Examples

stamen
  • A stamen is opposite each sepal, and in the centre of the flower is the rudiment of a pistil.

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  • It sometimes happens that a single stamen is longer than all the rest.

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  • The function of the stamen is the development and distribution of the pollen.

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  • The male germ cells, called pollen, are produced in a part of the flower called the stamen.

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  • With a small, sharp, pointed knife remove the stamen from each of the flowers.

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  • And finally, we find flowers consisting of a single stamen with a bract.

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  • The next unknown is a tree like plant with long vertical branches covered in very simple white flowers with yellow stamen.

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  • A, branch bearing male cones, reduced; B, single male cone, enlarged; C, single stamen, enlarged.

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  • The male flowers have 4 sepals and 4 stamen s, whilst the females have 4 sepals and a 3- style d ovary.

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  • The upper stamen group arise from the bell shaped part.

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  • As with few exceptions the stamen represents a leaf which has been specially developed to bear the pollen or microspores, it is spoken of in comparative morphology as a microsporophyll; similarly the carpels which make up the pistil are the megasporophylls (see Angiosperms).

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  • Includes a splendid image of a Tradescantia stamen hair cell which clearly shows the cytoplasm strands.

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  • The five stamen with anthers match the five sacred wounds & the three stigma the nails.

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  • The bright yellow flowers droop in a dense oblong head, the stamen and style being about twice the length of the flower tube.

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  • These delicate, usually light-colored spiders lay in wait within a flower blossom, often looking alarmingly like a pollen-bearing stamen.

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  • A green stem and a colored flower with a contrasting stamen completes this easy to paint design.

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  • There is thus traced a degradation, as it is called, from a flower with three stamens and three divisions of the calyx, to one with a single bract and a single stamen.

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  • In some cases, as in papilionaceous flowers, the stamens cohere, having been originally separate, but in most cases each bundle is produced by the branching of a single stamen.

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  • Saffron, as a herb, is made from the dried stamen of the crocus and is widely used in the oriental kitchen.

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  • The males have 8 showy stamen s, the females a forked style.

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  • The inflorescence is a very simple one, consisting of one or two male flowers each comprising a single stamen, and a female flower comprising a flask-shaped pistil.

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  • Similarly in the sporophylls of some cycads the bundles are endarch near the base and mesarch near the distal end of the stamen or carpel.

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  • In Scrophularia the fifth stamen appears as a scale-like body; in other Scrophulariaceae, as in Pentstemon, it assumes the form of a filament, with hairs at its apex in place of an anther.

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  • The number of stamens is indicated by the Greek numerals prefixed to the term androus; thus a flower with one stamen is monandrous, with two, three, four, five, six or many stamens, di-, tri-, tetr-, pent-, hexor polyandrous, respectively.

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  • In Scrophularia the fifth stamen appears in the form of a scale; and in many Pentstemons it is reduced to a filament with hairs or a shrivelled membrane at the apex.

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  • The long connective of the single stamen is hinged to the short filament and has a shorter arm ending in a blunt process and a longer arm bearing a half-anther.

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  • Young stamen is abortive, flower in which the stigma (N) is receptive and cannot perform and the stamens (3) have not yet opened; its functions.

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  • For when the older morphologists spoke of a stamen as a metamorphosed leaf, it was implied that it originated as a foliage-leaf and subsequently became a stamen.

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  • It would appear, then, that the orchid flower differs from the more general monocotyledonous type in the irregularity of the perianth, in the suppression of five out of six stamens, and in the union of the one stamen and the stigmas.

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  • The details of the structure of the flower show a wide variation; the flowers are often extremely simple, sometimes as in Arum, reduced to a single stamen or pistil.

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  • In most orchids the only stamen developed to maturity is the posterior one of the three opposite to the lip (anterior before the twisting of the ovary), the other two, as well as all three inner ones, being entirely absent, or present only in the form of rudiments.

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  • Stamen separated.

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  • Metamorphosis.It has already been pointed out that each kind of member of the body may present a variety of forms. For example, a stem may be a tree-trunk, or a twining stem, or a tendril, or a thorn, or a creeping rhizome, or a tuber; a leaf may be a green foliage-leaf, or a scale protecting a bud, or a tendril, or a pitcher, or a floral leaf, either sepal, petal, stamen or carpel (sporophyll); a root may be a fibrous root, or a swollen tap-root like that of the beet or the turnip. All these various forms are organs discharging some special function, and are examples of what Wolff called modification, and Goethe metamorphosis.

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  • As a matter of fact, a stamen is a stamen and nothing else, from the very beginning.

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  • In Cypripedium two of the outer stamens are wanting; the third - the one, that is, which corresponds to the single fertile stamen in the Monandreae - forms a large sterile structure or staminode; the two lateral ones of the inner series are present, the third being undeveloped.

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