Published in a modern user friendly format this fully revised and updated edition of the handbook of protoctista 1990 is the resource for those interested in the biology diversity and evolution of eukaryotic microorganisms and their descendants exclusive of animals plants and fungi. Published in a modern user friendly format this fully revised and updated edition of the handbook of protoctista 1990 is the resource for those interested in the biology diversity and evolution of eukaryotic microorganisms and their descendants exclusive of animals plants and fungi. Published in a modern user friendly format this fully revised and updated edition of the handbook of protoctista 1990 is the resource for those interested in the biology diversity and evolution of eukaryotic microorganisms and their descendants exclusive of animals plants and fungi. Published in a modern user friendly format this fully revised and updated edition of the handbook of protoctista 1990 is the resource for those interested in the biology diversity and evolution of eukaryotic microorganisms and their descendants exclusive of animals plants and fungi. The handbook covers many of these dreadful protistan parasites but unlike conventional parasitology texts the parasitic species are discussed within the larger context of their encompassing phyla allowing the reader to see how the general features of particular types of protists may have given them advantages in exploiting new hosts