'Protoderm' and 'procambium' terms were coined by
Haberlandt
Hanstein
Schmidt
Nageli
Diffused porous woods are characteristic of plants growing in
Multiple epidermis on dorsal and ventral side of the leaf is found in
Amphivasal or leptocentric vascular bundles are found in
The word “protoderm” was coined by
The process by which plants becomes woody is