Complex sentence: The macroconidia are borne singly or in clusters of 2 or 3; they consist of 1 to 9 septa, are 20-40µm in length and 7-12µm in width.
Split into simpler sentences: The macroconidia are borne singly or in clusters of 2 or 3. They consist of 1 to 9 septa, are 20-40µm in length and 7-12µm in width.