In dicotyledonous angiosperms, the dermatogen originate from
Terminal group of initial
The middle group of initial
Both the terminal and middle initial
The periblem during later development
Vascular bundles in which phloem is found on both sides of xylem are called (In which of the following phloem occurs in two patches)
Tunica corpus theory was proposed by
Ectophloic siphonostele is found in
Which of the following is the function of heartwood?
Dendrochronology is