Compact homogeneous mesophyll

Two vascular bundles enclosed in transfusion tissue

Resin ducts around periphery of mesophyll

Cross-section of a plano-convex needle from Scotch pine (Pinus sylvestris) that has two needles in the fascicle (also known as a brachiblast). Shown are two vascular bundles embedded in transfusion tissue (conveying food and water between the vascular tissues and the mesophyll) and compact homogeneous mesophyll with numerous peripheral resin ducts.