Asafoetida is found in the schizogenous ducts of the . . . . . . .

Match the following:

Column-$I$	Column-$II$
$(a)$. Cuscuta	$(i)$. Hygroscopic root
$(b)$. Rhizophora	$(ii)$. Stilt root
$(c)$. Vanda	$(iii)$. Haustorial root
$(d)$. Pandanus	$(iv)$. Respiratory root

$A$ root hair is formed by

The layer which separates velamen (a spongy tissue in epiphytic roots of some orchids for absorption of atmospheric moisture) from the cortex is called:

The cell layer located at the periphery in the cross-section of the root is called

Pneumatophores or breathing roots occur in