Rev.: Acta Botanica Hungarica 41 (1-4), p. 339, 1998 nach oben ↑
This book is the second serial of the previously four serial books of
Cymbella genus revised and completed by Kurt Krammer. It
contains the description of the second part of Encyonema genus
and the genera Pseudoencyonema, Encyonopsis and
Cymbellopsis. There are some detailed summarising tables of
morphological data of Encyonema and Encyonopsis
species. Krammer with his samples collected from different parts of
the world and with the newly described species helps the knowing of
biodivesity of the diatoms in the world.
The book contains 108 tables altogether, 1644 good quality photos made by light- or scanning electron microscopy. Krammer also described 50 new Encyonema, 49 new Encyonopsis and 5 new Cymbellopsis in this book.
The precisely written book is very useful for the diatomologists dealing with taxonomy or ecology of diatoms, but we think that the diatom taxonomy based on morphology has to complete with molecular methods (e. g. rDNA sequence analysis), which will reform the diatom taxonomy and can certify the validation of some newly described taxa questionable.
É.Ács and K. Szabó
Acta Botanica Hungarica 41 (1-4), p. 339, 1998