Filaments unbranched, cells cylindrical, 30-50 µm wide (female), 24-36 µm wide (male), 2 to 8 tims longer than wide; filaments dioecious, macrandrous; oogonium single or two together, obovoid-ellipsoidal to ovoid, 40-60 µm wide, 45-75 µm long, opening by a superior pore; oospore ellipsoidal to spherical-ellipsoidal (Fig. A and B), 58-76 µm wide, 65-96 µm long, not or completely filling oogonium, walls smooth; suffultory cell similar to adjacent vegetative cells (Fig. C); spermatozoids 2 per antheridium, produced by a vertical division.
Description: