During our researeh on the mycoflora of Catalonia, two species of hypogeous fungi were found as first records in the area surveyed: Leucogaster lozzianus (Cav. & Saec.) Matt. and Octavianina asterosperma (Vitt.) O. Kuntze. We have done a macro-and microscopical study of some anatomical features, giving special attention to the peridium and reproductive structures of the species mentioned above. Moreover, a similar study has been done on some other hypogeous fungi which are very infrequent or rare in Catalonia: Hymenogaster hessei Soehner, Hysterangium rickenii Soehner, Hysterangium stoloniferum Tul. var. rubescens (Quél.) Zeller & Dodge and Wakefieldia macrospora (Hawker) Hawker.

This paper was presented at the XIth Congress of European Mycologists at Kew, England, fmm 6-11 September, by M. P. Martín and D. Sierra. who wish lo express their deep gratitude to the Organizing Committee for providing financial assistance.

Peer reviewed