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staminal

staminal

staminal Sentence Examples

  • In the staminal whorl especially it is common to find additional rows.

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  • evergreen shrub with flattened leaf-like cladodes, native in the southerly portion of England and Wales; the small flowers are unisexual and borne on the face of the cladode; the male contains three stamens, the filaments of which are united to form a short stout column on which are seated the diverging cells of the anthers; in the female the ovary is enveloped by a fleshy staminal tube on which are borne three barren anthers.

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  • He mentions two experiments made by him to prove this - one by cutting off the staminal flowers in Maize, and the other by rearing the female plant of Mercurialis apart from the male.

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  • 4, The staminal apparatus at rest, with connective enclosed within the upper lip.

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  • The outermost series of the essential organs, collectively termed the androecium, is composed of the microsporophylls known as the staminal leaves or stamens.

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  • Flowers which are cyclic at one portion and spiral at another, as in many Ranunculaceae, are termed hemicyclic. In spiral flowers the distinction into series is by no means easy, and usually there is a gradual passage from sepaloid through petaloid to staminal parts, as in the water-lily family, Nymphaeaceae (figs.

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  • Here the number of parts in the staminal whorl is double that in the others, and in such a case the additional five parts form a second row alternating with the others.

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  • In Monocotyledons it is usual for the staminal whorl to be double, it rarely having more than two rows, whilst amongst dicotyledons there are often very numerous rows of stamens.

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  • In the Euphorbiaceae we have an excellent example of the gradual suppression of parts, where from an apetalous, trimerous, staminal flower we pass to one where one of the stamens is suppressed, and then to forms where two of them are wanting.

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  • This takes place chiefly in the staminal whorl, but usually the additional parts produced form a symmetrical whorl with the others.

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  • Thus in Cruciferous plants the staminal whorl consists of four long stamens and two short ones (tetradynamous).

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  • Many case's of what was considered chorisis are in reality due to the development of stipules from the staminal leaf.

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  • Thus in Dicentra and Corydalis there are six stamens in two bundles; the central one of each bundle alone is perfect, the lateral ones have each only half an anther, and are really stipules formed from the staminal leaf.

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  • 33) would be represented by the formula S 5 P 5 St 5 + 5 C 5, where St5+5 indicates that the staminal whorl consists of two rows of five parts each.

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  • Petals differ more from ordinary leaves than sepals do, and are much more nearly allied to the staminal whorl.

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  • It is sometimes difficult to say whether these structures are to be referred to the corolline or to the staminal row.

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  • The staminal row is more liable to multiplication of parts than the outer whorls.

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  • The disk is frequently formed by degeneration or transformation of the staminal row.

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  • The cells of the staminal hairs of Tradescantia air ginica contain a large sap-cavity across which run, in.

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  • evergreen shrub with flattened leaf-like cladodes, native in the southerly portion of England and Wales; the small flowers are unisexual and borne on the face of the cladode; the male contains three stamens, the filaments of which are united to form a short stout column on which are seated the diverging cells of the anthers; in the female the ovary is enveloped by a fleshy staminal tube on which are borne three barren anthers.

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  • He mentions two experiments made by him to prove this - one by cutting off the staminal flowers in Maize, and the other by rearing the female plant of Mercurialis apart from the male.

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    0
  • 4, The staminal apparatus at rest, with connective enclosed within the upper lip.

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    0
  • The outermost series of the essential organs, collectively termed the androecium, is composed of the microsporophylls known as the staminal leaves or stamens.

    0
    0
  • Flowers which are cyclic at one portion and spiral at another, as in many Ranunculaceae, are termed hemicyclic. In spiral flowers the distinction into series is by no means easy, and usually there is a gradual passage from sepaloid through petaloid to staminal parts, as in the water-lily family, Nymphaeaceae (figs.

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    0
  • Here the number of parts in the staminal whorl is double that in the others, and in such a case the additional five parts form a second row alternating with the others.

    0
    0
  • In the staminal whorl especially it is common to find additional rows.

    0
    0
  • In Monocotyledons it is usual for the staminal whorl to be double, it rarely having more than two rows, whilst amongst dicotyledons there are often very numerous rows of stamens.

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  • In the Euphorbiaceae we have an excellent example of the gradual suppression of parts, where from an apetalous, trimerous, staminal flower we pass to one where one of the stamens is suppressed, and then to forms where two of them are wanting.

    0
    0
  • This takes place chiefly in the staminal whorl, but usually the additional parts produced form a symmetrical whorl with the others.

    0
    0
  • Thus in Cruciferous plants the staminal whorl consists of four long stamens and two short ones (tetradynamous).

    0
    0
  • Many case's of what was considered chorisis are in reality due to the development of stipules from the staminal leaf.

    0
    0
  • Thus in Dicentra and Corydalis there are six stamens in two bundles; the central one of each bundle alone is perfect, the lateral ones have each only half an anther, and are really stipules formed from the staminal leaf.

    0
    0
  • 33) would be represented by the formula S 5 P 5 St 5 + 5 C 5, where St5+5 indicates that the staminal whorl consists of two rows of five parts each.

    0
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  • Petals differ more from ordinary leaves than sepals do, and are much more nearly allied to the staminal whorl.

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    0
  • It is sometimes difficult to say whether these structures are to be referred to the corolline or to the staminal row.

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  • The staminal row is more liable to multiplication of parts than the outer whorls.

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  • The pollinia are also provided with an appendicular staminal covering (fig.

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  • The disk is frequently formed by degeneration or transformation of the staminal row.

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  • The cells of the staminal hairs of Tradescantia air ginica contain a large sap-cavity across which run, in.

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