Taxonomy and ecology of Eunotia species (Bacil- lariophyta) in southeastern Brazilian reservois. 2017. (Bibliotheca Diatomologica, 64). 108 plates. 1 figure. 1 tab. 302 p.gr8vo. Paper bd.

This volume provides an image-rich documentation of the morphology and ultrastructure of Eunotia species from southeastern Brazil, including description of new taxa and restudy of original materials. Moreover, it represents the first combination of taxonomicand ecological approaches to the study of Eunotia in tropical and subtropical regions.The materials studied includes samples from distinct habitats(planktonic, periphytic and surface sediment) collected from 32reservoirs of southeastern Brazil. Eighty-seven Eunotia speciesare illustrated with light and scanning electron microscopic imageson 108 plates and compared with similar taxa. Among these, 13 taxa are reported here for the first time from Brazil, and 15 newtaxa are described. Morphometric features of all taxa are described and compared with data from the literature. The ecological preferences (optima) of 19 taxa were calculated for nutrients (total phosphorus and total nitrogen), pH and conductivity. A comprehensive sample table with reservoirs, drainage basins, geographic coordinates and herbariumnumbers and an extensive reference list complete the volume.The results of this work confirm the ecological preference of the genus for clean waters (ultraoligo- to mesotrophic). Two species(E. rhomboidea Hustedt and Eunotia maconi sp. nov.) were associated with eutrophic waters.This survey of Eunotia species from southeastern Brazil is of general interest to all readers working ondiatoms