Raphides are needle-like crystals of calcium oxalate which are specially found in

Cricket bats are made from the wood of:

Which of the following is an incorrect series of Polypetalae?

Match List-$I$ (Placentation type) with List-$II$ (Example) and select the correct option:
List-$I$
$A$. Marginal
$B$. Axile
$C$. Parietal
$D$. Basal
List-$II$
$I$. Mustard
$II$. Pea
$III$. Marigold
$IV$. Lemon

Which of the following groups of plants produces economically useful fibers?

China rose is called shoeflower because