Weddellomyces xanthoparmeliae sp. nov. and additions to the chorology of other species of the genus

Weddellomyces xanthoparmeliae Calatayud et Nav. Res. sp. nov., a non lichen ized lichenicolous fungus growing on Xanthoparmelia cf. protomatrae, is des cribed from Madrid province (Spain). The new species resembles W. erythroca rpae by having spores with a very fine ornamentation in the inner perispore and prominent tori in the septa of the young spores. Both taxa differ in t he size of the spores, which are smaller in W, xanthoparmeliae, only (22)-2 3-30-(32) x (7)-8-9-(10) mu m. Additional chorological data are supplied fo r three other species of Weddellomyces. W. heterochrous Nav.-Ros. et CI. Ro ux is reported from Spain, on Aspicilia desertorum, and W.aff. protearius N av.-Ros. et Cl. Roux from Austria, on Xanthoria elegans. W. epicallopisma i s mentioned for the first time from the Italian Peninsula and from Israel.