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The lichen Leptogium cyanescens – history, contemporary occurrence and trend in Slovakia

In: Bulletin Slovenskej botanickej spoločnosti, vol. 27, no.
A. Guttová
Detaily:
Rok, strany: 2005, 37 - 44
Kľúčové slová:
Collemataceae, Leptogium, cyanophilic lichens, threat, Slovakia
Typ článku: Full Paper
O článku:
This is a fact file summarizing information on the lichen Leptogium cyanescens in Slovakia for the first time. The facts were gathered during field inventories starting in 1996 and studies of specimens kept in European lichen-collections and relevant literature. The species, confined to montane forest stands, has been rare through all the time periods (19th century – nowadays) due to its suboceanic character. It has been recorded in 19 orographic units, maximum number of collections (30) dates back to the 1st half of 20th century. Recently (1996 – 2004) it was recorded in 5 grid units. From 1950 on no fertile specimens were observed. Leptogium cyanescens is critically endangered, listed along with lichen-indicators of ecological continuity of Slovak montane forests