Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A supportive plant tissue that consists of thick-walled, usually lignified cells. Sclerenchyma cells are either fibers or sclereids.

from The Century Dictionary.

  • noun The hard sub stance of the calcareous skeleton or corallum of sclerodermic corals, a proper tissue-secretion or calcification of the soft parts of the polyps themselves.
  • noun In botany, the tissue largely composing the hard parts of plants, such as the shell (endocarp) of the hickory-nut, the seed-coat of seeds, the hypoderma of leaves, etc.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Bot.) Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See sclerotic.
  • noun (Zoöl.) The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun botany A mechanical, supportive ground tissue in plants consisting of aggregates of cells having thick, often mineralized walls
  • noun zoology The hard calcareous deposit in the tissues of Anthozoa, constituing the stony corals.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Ancient Greek σκληρός ("hard") + -enchyma

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Examples

  • There is a broad well developed continuous band of sclerenchyma, which is connected at regular intervals with the epidermis by small vascular bundles.

    A Handbook of Some South Indian Grasses K. Rangachari

  • The sclerenchyma lying on the lower side of the primary bundles are contiguous with the bundle, while those above are separated from the bundle by the chlorophyllous layer.

    A Handbook of Some South Indian Grasses K. Rangachari

  • For example, in the leaves of _Panicum repens_ both the primary and secondary bundles are provided with sclerenchyma on both the sides, while those of the third order may have it on one side or not.

    A Handbook of Some South Indian Grasses K. Rangachari

  • All the cells lying in the furrow between the motor-cells and the sclerenchyma are clear cells free from chlorophyll grains.

    A Handbook of Some South Indian Grasses K. Rangachari

  • However, when we take into consideration the arrangement of bundles, the development and arrangement of sclerenchyma, every species of grass has its own special characteristics.

    A Handbook of Some South Indian Grasses K. Rangachari

  • The other vascular bundles may have bands of sclerenchyma on both sides or on one side only or none.

    A Handbook of Some South Indian Grasses K. Rangachari

  • The lower region usually forms a more or less clearly marked midrib, and consists of parenchymatous cells, some of which may contain oil-bodies or be differentiated as mucilage cells or sclerenchyma fibres.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

  • In the case of smaller bundles some are strengthened by sclerenchyma on the lower side and others have none.

    A Handbook of Some South Indian Grasses K. Rangachari

  • An ordinary epidermal cell; st. stomata; sc. sclerenchyma; ph. phloen;

    A Handbook of Some South Indian Grasses K. Rangachari

  • But in the leaves of this grass, the development of sclerenchyma is not very considerable, but there is a great development of parenchymatous cells free from chlorophyll within the leaf, the chlorophyll bearing cells being confined to the upper and the lower surfaces of the leaves.

    A Handbook of Some South Indian Grasses K. Rangachari

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