External link - taxa
| Porella bolanderi (Aust.) Pears. BIOLIB: (Austin) Pearson | |
Porella cordaeana (Hüb.) Moore  BIOLIB: (Huebener) Moore | |
| Porella navicularis (Lehm. & Lindenb.) Lindb. BIOLIB: (Lehm. et Lindenb.) Pfeiff. | |
| Porella roellii Steph. | |
| Porella platyphylla (L.) Pfeiff. | |
| Porella platyphylloidea (Schwein.) Lindb. |