Books received by the Rijksherbarium library

The eleventh issue of this series gives 26 sheets with coloured and/or black-and-white photographs of 11 unidentified and 16 identified species of Ectomycorrhizae. The morphology is extensively described. Several keys are given for the identification of ectomycorrhiza with respect to the tree genera Abies, Alnus, Betula, Carpinus, Corylus, Cyclobalanopsis, Elaeocarpus, Eucalyptus, Fagus, Larix, Nothofagus, Pasania, Picea, Pinus, Populus, Pseudotsuga, Quercus, Salix, Shorea, Tetraberlinia, and Tsuga. Again, this issue adds a lot of very useful information on the subject, and is of great value for ectomycorrhizal research.