How many orders does the series Disciflorae contain?

Match the following columns:

Column-$I$	Column-$II$
$(a)$ Gymnosperms	$(p)$ Trimerous flowers
$(b)$ Monocots	$(q)$ Absence of flowers
$(c)$ Dicots	$(r)$ Primitive type of flowers
$(d)$ Pteridophytes	$(s)$ Tetramerous or pentamerous flowers

Which one of the following is monoecious?

How many divisions were included in the sub-kingdom Thallophyta by Oswald Tippo?

Provide the appropriate terms for the following analogies:
$(i)$ In Gymnosperms : Diplontic life cycle :: In Pteridophytes : .......
(ii) Ectocarpus : Haplodiplontic life cycle :: Fucus : ..........

Match the following columns:

Column-$I$	Column-$II$
$(A)$ Christmas tree	$(i)$ Bennettites
$(B)$ Fossil plant	$(ii)$ Cycas
$(C)$ Ornamental plant	$(iii)$ Araucaria
$(D)$ Tallest tree	$(iv)$ Sequoia
	$(v)$ Thuja