Reviews

This volume, seventh in the series, deals exclusively with hybrid taxa of Pteridophytes in Japan. In this book 302 hybrid taxa are illustrated by photographs and maps. The production of this massive book was organised by Dr. Nakaike with the contribution of many local Pteridologists in this country. Following the style of the former volumes, 48 hybrids are recorded in detail in the first part of this book, each with a black and white photograph of a living plant, a short record of the discovery of the hybrid, its diagnostic characters, and discussion of postulated parents, information which is unfortunately all in Japanese; furthermore a page of line drawings (sometimes substituted by high-quality photographs of herbarium specimens), a map of distribution, and a list of collector’s records.