लंबे ट्यूबलर सेल अजीब से xylem

tracheid's Usage Examples:

Numbers of other minute wood fragments were found on this single 1 cm² peel, some of which showed damaged bordered pit tracheid structures.

the pits may be separated by a network of thickenings when the tracheid is reticulate or they may be transversely elongated and separated by bars of thickening like the rungs of a ladder (scalariform thickening).

N, One side of the end of hydroid (tracheid) of a Pteridophyte (fern), with scalariform pits.

tracheid structures.

A tissue mother-cell of the xylem may, in the most advanced types of Dicotyledons, give rise to(I) a tracheid; (2) a segment of a vessel; (3) a xylem-fibre; or (4) a vertical file of xylem-parenchyma cells.

During the process the thin walls are stretched and the turns of the spiral become pulled apart without rupturing the wall of the tracheid or vessel, If the pitted type of tracheal element were similarly stretched its continuously thickened walls would resist the stretching and eventually break.

P, Part of spiral hydroid (tracheid) of Phanerogam (Flowering Plant).

tracheid's Meaning':

long tubular cell peculiar to xylem