Title in English: Spiny fungi / hydnaceous and hericioid fungi
The paper presents a summary of current knowledge about the studied groups of fungi. Basic information about 33 species occurring in the Czech Republic is completed with notes about 13 species, which are known in the surrounding countries and the possibility of their find in the Czech area cannot be excluded. Descriptions of particular species are completed with survey of similar species and their distinguishing characters, which should help in certain determination. Further paragraphs describe the historical changes of occurrence, phenology (not presented at hydnaceous fungi; almost all of them occur in the late summer and autumn), ecology (accompanying trees at the mycorrhizal hydnums, wood substrate at lignicolous hericia) and distribution in the Czech Republic (species of family Bankeraceae are completed with the note about Slovakia; material from Slovakia has not been elaborated at the other groups). Identification keys to the particular families and genera are completed with the total key for the whole heterogeneous group of terrestrial stipitate hydnums.