This scarce antiquarian book comprises a comprehensive guide to common types of microscopic fungi. Complete with almost 300 detailed pictures and a highly accessible commentary, this book is perfect for both the beginner and veteran mycologist, and constitutes a great addition to any collection of mycological literature. Chapters contained within this text include: Cluster Cups, Spermogones, Di-morphism, Mildew and Brand, Complex Brands, Smuts, Complex Smuts, Rusts, White Rusts, Moulds, White Mildews or Blights, and Suggestions. Mordecai Cubitt Cooke (1825 - 1914) was an influential botanist and mycologist. This book, originally published in 1872, has been elected for modern republication due to its immense educational value, and is proudly republished here complete with a new introduction.