Figs. 15-17. Karlingiomyces marylandicus.

Fig 15. Zoosporangium with thickened wall and irregularly constricted rhizoids.

Fig 16. Zoosporangia with elongate exit tubes, each with a shallowly convex, exo-operculum (detached); endo-operculum evident near apex in sporangial exit tube on right.

Fig 17. Two sizes of zoospores, each with a single hyaline globule.