Syntaksonomia śródlądowych, pionierskich muraw napiaskowych [Syntaxonomy of inland and pioneer psammophilous grasslands]

A regional description of the pioneer psammophilous grasslands in Poland is given. As a conseąuence of the syntaxonomic revision of 1055 phytosociological records (numerical classification according to the TWINSPAN programme) the occurrence of a single association Spergulo morisonii-Corynephoretum canescentis R. Tx. ex K. Czyżewska hoc loco is stated in Poland, and — within that association — the following syntaxa: subass. typicum subass. nova (var. typicum var. nova, var. with Artemisia campestris subsp. campestris vaf. nova, var. with Hypochoeris radicata var. nova, and intermediate form), subass. thymetosum serpyll subass. nova (var. typicum var. nova, var. with Artemisia campestris subsp. campestris var. nova, var. with Festuca ovina var. nova, and var. with F. psammophila), subass. cladinetosum mitis R. Tx. (1928) 1937 em. K. Czyżewska (var. typicum var. nova, var. with Thymus serpyllum var. nova, and var. with Polytrichum piliferum var. nova — the later and earlier phases), as well as subatlantic and subcontinental races. Nomenclatoric types are given for all the units concerned.