Fig. 11.31. Eccrinidus flexilis. A. Two mature, two-chambered primary infestation sporangiospores. B. Primary infestation sporangiospore with one of the two 4-nucleate inner cells emerged. C. Empty spore case clearly showing its bilocular structure. Scale bar = 20 µm for all figures. Fig. 11.31B reprinted by permission from Mycologia, vol. 65: 12, Copyright 1973, R.W. Lichtwardt and The New York Botanical Garden.