Testing the Pressure-Flow Hypothesis
Phloem Anatomy
- Phloem Tissue
- Sieve Elements (Sieve Tube Members)
- Angiosperms: sieve plates between cells, form sieve tubes
- Gymnosperms: sieve cells
- Companion cells (Angiosperms)Albuminous Cells (Gymnosperms)
- Parenchyma, Fibers
- Mesophyll Cells: no more than 2 or 3 cells away from a vein
- Transfer Cells