Resin ducts are found in -

[A] : Pinus bears resin canals . [R] : Resin canals are found in cortex and bounded by a glandular epithelial layer that secretes resin.

[A] : Pinus bears resin canals . [R] : Resin canals are found in cortex and bounded by a glandular epithelial layer that secretes resin.

[A] : Pinus bears resin canals . [R] : Resin canals are found in cortex and bounded by a glandular epithelial layer that secretes resin.

[A] : Pinus bears resin canals . [R] : Resin canals are found in cortex and bounded by a glandular epithelial layer that secretes resin.

Resin canals are

Resin canals are -

In ________ the resin ducts are blocked by tylose like ingrowths.

Assertion (A) : Tylosoids in gymnosperms and angiosperms Reason (R ) : In gymnosperms - The resin ducts are blocked by tylose. In angiosperms -The sieve tubes are blocked by tylose.