Language: Chinese with scientific nomenclature and bilingual keys in English and Chinese
Volume 19 is the second part dealing with Naviculaceae.
Naviculaceae (II)
Pinnularia Ehrenberg
1. Subgenus Parallelistriatae
2. Subgenus Capitatae
3. Subgenus Divergentes
4. Subgenus Distantes
5. Subgenus Tabellariae
6. Subgenus Brevistriatae
7. Subgenus Maiores
8. Subgenus Complexae
Porosularia Skvortzow
Hygropetra Krammer & Lange-Bertalot