"...ellipsoid to cylindrical, 14-25(-30) × (5-)6-9(-10) µm, 0-2(-3)-septate."
What are those numbers in parentheses? Rare individual?
How do you decide whether or not you add those numbers in parentheses? : how many percentage of individuals with those numbers should be present in a population?
We do 30 in normal cases; Novelty up to 90 conidia; additionally Conidiogenous cells and Conidiophores for asexual fungi
"..ellipsoid to cylindrical, 14-25(-30) × (5-)6-9(-10) µm, 0-2(-3)-septate."
it means that the most frequent values are between 14 and 25 µm, but they can go up to 30 µm; this value in parentheses indicates a feature that is present for the taxon but is rare.
For taxonomists it is important to know the size range, even the less frequent values are important to compare for example if there is any environmental or host influence. Some people choose not to use this parenthesis in the taxon description, but note these 'oddities' in the discussion section.
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