The balloonshaped structures called tyloses
originate in the lumen of vessels
characterise the sapwood
are extensions of xylem parenchyma cells into vessels
are linked to the ascent of sap through xylem vessels.
Which of the following vascular bundles are always open?
Axillary bud originates from
Regeneration of damaged growing grass following grazing is largely due to
Which of the following have sunken stomata?