Hawthorn (Crataegus, Rosaceae) data for the flora of the North Hungarian Mountains (NE Hungary)

Abstract

This paper includes 4 hawthorn species (C. laevigata, C. lindmanii, C. ovalis, C. rosaeformis subsp. rosaeformis) and 8 hawthorn hybrid taxa (C. ×macrocarpa nothosubsp. baranecii, C. ×media, C. ×plagiosepala nothosubsp. dunensis, C. ×pseudoxyacantha, C. ×radnoti-gyarmatii, C. subsphaerica nothosubsp. jacquinii and nothosubsp. subsphaerica) from the North Hungarian Mountains, giving the exact location data and site conditions of the new discoveries. It points out that approximately 10% of the hawthorn individuals in the studied forests are microspecies or hybrids, and that hybrid taxa are often present more frequently than their parent species.