Botany online: Dermal Tissues, Parenchyma and Assimilation Tissues - Pine needle

Botany online 1996-2004. No further update, only historical document of botanical science!

Cross-section through a Pine Needle. Fluorescence Microscopic Picture of a Semi-thin Section Stained with Calcofluor-White.

E Epidermis Sk Hypodermis of sclerenchymatic cells S Guard cells A Arm-palisade parenchyma H Resin duct surrounded by epithelial cells En Endodermis. It surrounds a transfusion parenchyma with two vascular bundles (L) (with Xylem, x, and phloem, p) (R. DUDEN, 1985)