PROTOPARMELIA HYPOTREMELLA, A NEW STERILE CORTICOLOUS SPECIES FROM EUROPE, AND ITS LICHENICOLOUS FUNGI

Protoparmelia hypotremella van Herk, Spier & Wirth, a sterile corticol ous lichen, is described as a species new to science, so far known fro m Austria, SW Germany and the Netherlands. It is rapidly spreading in Germany and the Netherlands. It is apparently close to P. oleagina, an d is often found growing together with that species on oak trees along roads in the Netherlands. Both species are host to the lichenicolous fungi Sphinctrina anglica and Tremella wirthii. (C) 1997 The British L ichen Society.