Surveys of new and rare microfungi in the Düsseltal (North Rhine-Westphalia)--Germany.

: In the years 2003 and 2004 we have observed an about 70 hectare large area in the Dusseltal, the eastern part of the Neandertal in North Rhine-Westphalia. There we collected on trees, bushes and herbs and found about 150 microfungi of which some are new for Germany or the entire world. E.g.: Pseudocercospora populigena N. ALE-AGHA, U. BRAUN & G.B. FEIGE on Populus berolinensis; Vialaea insculpta (FR.) SACC. on Ilex aquifolium L.; Passalora amelopsidis (PECK.) U. BRAUN on Parthenocissus quinquefolia (L.) PLANCH.: Pleiochaeta setosa (KIRCHN.) HUGHES on Genista angelica L.; Cercospora mercurialis PASS. on Mercurialis perennis L. (new for NRW); Pleurocytospora vestita PETRAK on Ribes aureum PURSH.; Gonatobotrys simplex CORDA on Lolium perenne L.; Phomatospora berckleyi SACC. on Dactylis glomerata L. and so on. All specimens are located in the Herbarium ESS, Mycotheca Parva collection G.B. Feige & N. Ale-Agha.