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The primitive formative juice, from which the tissues, particularly the cellular tissue, are formed.

A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.

Vascular tissue of plants, consisting of spiral vessels, dotted, barred, and pitted ducts, and laticiferous vessels.

Dotted or pitted ducts or vessels forming the pores seen in many kinds of wood.

The common tissue which unites the polyps or zooids of a compound anthozoan or coral. It may be soft or more or less ossified. See Coral.

A tissue of vegetable cells which are thickend at the angles and (usually) elongated.

Tissue composed of spheroidal cells.

The part of the mesoblast which gives rise to the connective tissues and blood.

The soft celluar substance of the tissues of plants and animals, like the pulp of leaves, to soft tissue of glands, and the like.

Of, pertaining to, or consisting of, parenchyma.

Of, pertaining to, or connected with, the parenchyma of a tissue or an organ; as, parenchymatous degeneration.

Tabular parenchyma, a form of cellular tissue in which the cells are broad and flat, as in some kinds of epidermis.

A tissue consisting of long and slender tubular cells, of which wood is mainly composed.

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.

Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See Sclerotic.

Pertaining to, or composed of, sclerenchyma.

Vegetable tissue composed of thin-walled rounded cells, -- a modification of parenchyma.

Same as Bothrenchyma.

A vegetable tissue consisting of tracheæ.

Consisting of a network of veins, without intermediate parenchyma, as the leaves of certain plant; latticelike.