The difference in phloem of gymnosperms and angiosperms is due to
Parenchyma
Sieve cell
Companion cell
Fibres
In pteridophyta and gymnosperms which cells are present in place of companion cell
Chloroplast containing parenchyma is called
Tissue composed of non-parenchymatous cells and have isodiametric or irregular shape is called
Schlerenchyma tissue.