Loglinear analysis showed that the stage structures of the populations of five Diellia taxa were different (Pearson χ2 = 115.44; p < 0.001, df = 8; Fig. 2). In D. erecta, premature life stage was represented significantly less (Freeman Tukey deviation test, p < 0.001) than expected on the basis of cross average, though representation of sporeling and mature stages corresponded with expectations. On this basis, one may claim that the status of the population still resembles a normal one. In the case of D. erecta f. alexandri, the sporeling stage was significantly under-represented, and the mature stage was significantly over-represented, compared with expected shares, which indicates the regressive status of the population. In D. falcata, the mature stage was less frequently represented than expected on average, and the population may be classified as dynamic. In the case of D. pallida, the proportions of all life stages corresponded with those expected on average, and although represented in