Figs. 70-74.  Chytriomyces appendiculatus Karling (Karling, 1947).

Fig. 70.  Maturing zoosporangium with thickened wall and primary nucleus within.

Fig. 71.  Mature, thick-wall zoosporangium with coarse, thick-walled rhizoidal axis; sac-shaped area of hyaline matrix underneath the operculum.

Fig. 72.  Exogenous discharge vesicle containing quiescent zoospores.

Fig. 73.  Mature resting spore.

Fig. 74.  Ovoid, 4-5 × 6-6.5 µm zoospore with single refractive hyaline globule.