Which is incorrect about Cycas
Its xylem has vessels
It has circinate venation
It does not have well organised female flower
Its roots possess some blue-green algae
Give differences : Sieve cell and Sieve tubes
Vessels are mainly found in
Which one of the following statements pertaining to plant structure is correct
Definitions / Explanation :
$(i)$ Endoarch vessels
$(ii)$ Exoarch vessels
A fibre derived from a tracheid is