Conical fleshy roots occur in

Which type of root is found in $Mirabilis \text{ } jalapa$?

Root hair develop from the region of

Velamen is found in . . . . . . .

Plants like $Rhizophora$ and $Avicennia$ grow on the sea shores under saline conditions. For this,they have special roots for respiration which are called:

Pneumatophores occur in