Fig. 2. LM. 1' with large oblong vp. vp=ventral pore.
Fig. 3. LM. Apical view: detached and intact epitheca. vp large and distinct. 1' plate forms 90 degree angle at point where vp and 4' plate come in contact. APC=apical pore complex.
Fig. 4. LM. Resting cysts: spherical and relatively clear. Cingular groove and reddish-brown granules evident (arrowheads).
Fig. 5. LM. Resting cysts covered in mucilage. Nucleus visible (arrowhead).
Fig. 6. Line drawing. characteristic 6'' plate: wider than high. Cingulum slightly excavated. C=cingulum.
Fig. 7. Line drawing: a. Po in direct contact with 1'. Po=apical pore; b. Po in indirect contact with 1' via thin suture. Foramen is comma-shaped.