Key: Step 824. Orthocladiinae 235

824a. Precorneals and antepronotals thorn-like, spine-like or very elongate, in which case they are about 3µm wide at base.

Step 825. Orthocladiinae 236

824b. Precorneals and antepronotals hair-like, narrow, about 1µm across or less.

Step 832. Orthocladiinae 243 Smittia/Pseudosmittia
Decision path