The new collections of Anthracoidea buxbaumii Kukkonen on bed linen Carex buxbaumii Wahlenb.and Anthracoidea hostianae B.Lindeb.
ex Nannf.on Carex lepidocarpa Tausch recorded in the calcareous mires in South-East Poland are described, illustrated and discussed.The holotype of the latter smut is also re-examined, described and illustrated in detail.
Anthracoidea buxbaumii is reported for back cushion the second time from Poland on a new host plant.Anthracoidea hostianae is new to Poland.The variability of spore sizes of both species is discussed.
The conspecificity of Anthracoidea buxbaumii and A.hostianae suggested in the literature is analyzed.