prosenchyma

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

• noun A type of plant tissue consisting of elongated cells with tapering ends, occurring in supporting and conducting tissue.
• noun A type of fungal tissue in which the hyphae are loosely arranged and can be distinguished from each other.

from The Century Dictionary.

• noun In botany, the fibrovascular system or tissue of plants; the cells and modified cells which constitute the framework of plants, as distinguished from parenchyma, or the cells which constitute the soft tissues of plants. See parenchyma.

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

• noun (Bot.) A general term applied to the tissues formed of elongated cells, especially those with pointed or oblique extremities, as the principal cells of ordinary wood.

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

• noun botany The tissues formed of elongated cells, especially those with pointed or oblique extremities, such as the principal cells of ordinary wood.