Key: Step 610. Orthocladiinae 22 Corynoneura

610a. Frontal setae long, taeniate. Dorsocentral setae 3 and 4 small.

Corynoneura pe5

610b. IF frontal setae taeniate, dorsocentral seta 3 also long, taeniate.

Corynoneura Pe 4 Langton 1984

Step 611. Orthocladiinae 23 Corynoneura
Decision path