bundle sheath


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bundle sheath

[′bənd·əl ‚shēth]
(botany)
A sheath around a vascular bundle that consists of a layer of parenchyma.
References in periodicals archive ?
in leaf blade vascular bundle sheath cells is equivocal, and reinvestigation is therefore needed.
is uncommon in stem and petiole, and it evidently approaches rarity in the foliar bundle sheath.
occurring in the foliar bundle sheath of scattered angiosperms therefore could be regarded as merely an atavism, which, if it did not interfere with function, could be tolerated by the organ.