The minerals are unimportant, except amber, peat and clay.
It was unimportant... then.
They spoke little even to one another, and when they did it was of very unimportant matters.
There is no renal portal system, excepting unimportant vestiges of such a system in the head kidneys.
These enenlies are as a rule so conspicuous that we do not look on their depredations as diseases, though the gradual deterioration of hay under the exhausting effects of root-parasites like Rhinanthus, and the onslaught of Cuscuta when unduly abundant, should teach us how unimportant to the definition the question of size may be.