Distribution of spore size of R. demonensis (7 collections), compared with R. legaliae (13 collections) and R. rubrosanguineus (20 collections), using “isoprobability ellipses”. It is shown the distribution of the average values of spore size for any of the collections, at the confidence of 68% (corresponding to 1st deviation, left side) and at the confidence of 95% (correspondent to 2 × st. deviation, right side).