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Author: J.C. Roskam
In 1964-1965 Herbert Buhr published his ‘Bestimmungstabellen der Gallen (Zoo- und Phytocecidien) an Pflanzen Mittel- und Nordeuropas’. These keys were developed in the great tradition of cecidology in Europe. During the second half of the twentieth century a new generation of cecidologists expanded significantly our knowledge of plant galls and their distribution, about doubling the knowledge known before.

We concentrated on Buhr’s keys, but implemented additions, especially for Southern Europe, from Houard (1908-1913): Les zoocécidies des plantes d’Europe et du bassin de la Méditerranée. The nomenclature of as well gall inducers as host plants has been updated, and information about specific groups of gall inducers has been reviewed and new insights have been given by a team of specialists. To the proxy 9,000 galls and malformations described by Buhr and Houard, we added about 1,250 new galls which have been described in the more recent literature. Moreover, we collected distribution data for total Europe and, if available, adjacent areas.

VOLUME I: Abies-Myrrhis
VOLUME II: Narcissus-Zygophyllum
VOLUME III: References, Plates, Index
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus
Identification Key for Desmidiaceae - Morphology - Ecology and Distribution - Taxonomy
This flora represents the European species of het desmid genera Staurastrum and Staurodesmus and contains reliable identification keys and general information on the morphology, taxonomy, ecology and geographical distribution. An invaluable tool for aquatic ecologists and water quality management.
The desmid genera Staurastrum and Staurodesmus are notorious for their confusing taxonomy and problematic species identification. To a large part this is due to a lack of reliable identification manuals. The present flora, dealing with the European species of these genera, aims to meet this need. As well as general information on the morphology and taxonomy of the genera, identification keys to the species are provided. The discussion of each species includes morphological characteristics, ecology and geographical distribution (also beyond Europe).
As compared to other desmid genera, a large part of the Staurastrum and Staurodesmus species have a euplanktonic way of life. Reliable identification and knowledge of their ecological demands is most important for the assessment of water quality. Many species have a confined geographical distribution, even within Europe. Shifting distribution patterns of those species might be linked to climate change.
Volume 1: Desmids of the Lowlands - Mesotaeniaceae and Desmidiaceae of the European Lowlands
Volume 2: European Flora of the desmid genera Staurastrum and Staurodesmus
In: European Flora of the Desmid Genera Staurastrum and Staurodesmus