plant tissues under the microscope in the laboratory.

plant structure sieve-tube member fiber parenchyma cell lacunar collenchyma leaves monocot dicot root tip pith vascular tissue detail stoma tubes stomata vein pattern botanic mesophyll xylem chloroplast leaf bundle stem cambium histological educational cortex epidermis vessels sclerenchyma cork chlorenchyma botanical phloem preparation botany microscope microscopic study tissues laboratory