(Grunow) Lange-Bert. and Krammer 1999
Chamaepinnularia krookiformis is elliptic in shape.
Chamaepinnularia gandrupii is more linear in shape, lacking a central expansion.
Chamaepinnularia hassiaca is small and more linear in shape.
(J.B.Petersen) Lange-Bert. and Krammer 1996
(Krasske) Cantonati and Lange-Bert. 2009
(Krammer) Lange-Bert. and Krammer