Heft 096: Corner,E.J.H.:Ad Polyporaceas V. The genera Albatrellus,Boletopsis,Coriolopsis (dimitic),Cristelloporia, Dia- canthodes,Elmerina,Fomitopsis (dimitic), Gloeoporus, Grifola, Hapalopi- lus, Heterobasidion, Hydnopolyporus, Ischnoderma, Loweporus, Parmastomy- ces, Perenniporia, Pyrofomes, Stecchericium, Trechispora, Truncospora and Tyromyces. 1989. 20 figs. 218 p. gr8vo. Cloth.

Introduction: In this contribution I conclude the account of monomiticand dimitic non-xanthochroic polypores, so far as I have met with them.A final contribution will deal with the majority of trimitic speciesassembled as Trametes, and it will provide the opportunity to reviewgeneric relationships. I have dealt with the genera in a rather off-handway because of the many collections annd copious notes that I have, andthe tenure of life and sight is uncertain. In the course of the work ithas become clear that various genera are vaguely, even arbitrarily,defined and of unequal content, and that, in consequence, allied speciescome to be widely separate. The main purpose, however, has been toprovide descriptions of living tropical polypores.