Publication details
Historické a současné rozšíření plešivky fialové (Calvatia fragilis) v České republice a poznámky k její ekologii
| Title in English | Historical and current distribution of Calvatia fragilis in the Czech Republic and notes on its ecology |
|---|---|
| Authors | |
| Year of publication | 2021 |
| Type | Article in Periodical |
| Magazine / Source | Mykologické listy : časopis České vědecké společnosti pro mykologii |
| MU Faculty or unit | |
| Citation | |
| web | http://www.czechmycology.org/mykologicke-listy-content.php#v148 |
| Keywords | puffballs; Calvatia cyathiformis; Calvatia lilacina; mycogeography; rock steppe; rare species; xerothermic vegetation |
| Description | The paper summarises the state of knowledge of the distribution and ecology of Calvatia fragilis in the Czech Republic based on a critical study of published data and herbarium specimens. We have tracked 46 reliable localities. Before the year 2000, the species was known from 33 sites. Most of these finds originate from the 1950s and earlier. Some problematic data are discussed in detail. Since 2010, C. fragilis has been discovered at 13 new, previously unknown localities and its historical occurrence was confirmed at 9 sites. The localities lie in the Thermophyticum area or just beyond its boundaries, namely in the České středohoří Mts, the vicinity of Prague and near the southeastern margin of the Českomoravská vrchovina Highlands. Its habitats are mostly open narrowleaved dry grasslands on subsoil of various hard rocks with sandy or gravelly weathering; the species occurs only exceptionally on sand in the Czech Republic. The newly discovered localities are characterised ecologically in various detail, in one case also by means of a phytosociological relevé. The decline in mycologists’ interest in steppic sites and loss of habitats due to shrub encroachment are possible explanations for the low number of finds in the second half of the 20th century. |