ENTROPHOSPORA-BALTICA SP. NOV. AND GLOMUS-FUEGIANUM, 2 SPECIES IN THEGLOMALES FROM POLAND

Two fungal species, Entrophospora baltica sp. nov, and Glomus fuegianu m (Glomales, Zygomycetes), are described and illustrated. Entrophospor a baltica forms orange, (110-)177(-200) mu m diam spores within the ne ck of sporiferous saccule. The spores and sporiferous saccules are env eloped in a sinuate hyphal mantle. Spore wall structure consists of fi ve walls in two groups. Group A is composed of a hyaline, evanescent o utermost wall, an orange, unit wall ornamented with warts, and a hyali ne, laminated wall. A hyaline, membranous wall and a hyaline, coriaceo us wall form group B. Entrophospora baltica occurred among roots of pl ants colonizing maritime sand dunes in northwestern Poland. Glomus fue gianum produces clusters of spores occurring singly ir the soil or agg regated in sporocarps. Spore-groups are composed of radially arranged spores developed from a thick-walled, inflated hypha. The pale yellow to brown spores frequently are enveloped by branched and convoluted hy phae. Spores have one wall with two layers: a hyaline, sloughing outer layer adherent to a colored, laminated layer. Glomus fuegianum seems to be an extremely rarely occurring fungus in Poland. This fungus was recovered from three soil samples collected from the root zone of Juni perus communis growing in the inland sand dunes of the Kampinos Nation al Park. This fungus is new to the mycota of Poland.