The corticolous Physcietea lichen communities in the old parks of Kherson region (Ukraine)

Abstract

The corticolous lichen communities in the old parks of Kherson region are presented by five new associations and two subassociations. Alyxorio varii-Xanthorietum parietinae has diagnostic species Alyxoria varia, Phaeophyscia nigricans, Scythioria phlogina and forms under influence of the sea winds in arid condition on a neutral bark of old trees (Fraxinus excelsior, F. pensilvanica, Populus alba, Salix alba). Melanelixio subargentiferi-Ramalinetum farinaceae has diagnostic species Melanelixia subargentifera, Phlyctis argena, Ramalina farinacea and colonize of the old trees with neutral bark (Fraxinus excelsior, Quercus robur) in shaded steppe forests and parks. Pioneer hemibasophilous, xerophilous, heliophylous association Rinodino pyrini-Calogayetum lobulatae forms on bark of the different trees in young parks of the southern Ukraine and differs from other nitrophylous communities by Calogaya lobulata, Myriolecis hagenii and Rinodina pyrina diagnostic species. These association are belong to the Xanthorion parietinae Оchsner 1928 alliance. Nitrophilous, heliophilous, xerophilous association Amandineo punctate-Xanthorietum parietinae subass. typicum is widespread in southern Ukraine on different tree species and has diagnostic species Amandinea punctata, Physcia adscendens and Xanthoria parietina. Subassociation Amandineo punctate-Xanthorietum parietinae subass. candelarielletosum efflorescentis has diagnostic species Pleurosticta acetabulum and Candelariella efflorescens and found in the old parks in southern Ukraine. Ombrophilous, scyophilous, mesophilous communities of the association Chaenotheco trichiali-Amandinietum punctatae has diagnostic species Amandinea punctata and Chaenotheca trichialis and forms on old trees at age 100-200 years (Quercus robur,

Notes to lichen-forming and lichenicolous fungi in Ukraine II

“…This specimen was published under the name Opegrapha niveoatra (Borrer) J.R. Laundon in our previous works [KHODOSOVTSEV et al, 2017a[KHODOSOVTSEV et al, , 2019a. Revision of the specimen shows that it's Alyxoria varia.…”

“…Almb. This is a rather common species growing mostly on a smooth bark of deciduous trees [KONDRATYUK et al, 1998[KONDRATYUK et al, , 2003KHODOSOVTSEV et al, 2017aKHODOSOVTSEV et al, ,b, 2018. New species for the Kharkiv region.…”

Notes to lichen-forming and lichenicolous fungi in Ukraine I.

“…It is a new species for the Dnipropetrovsk, Mykolaiv and Odessa regions. KHODOSOVTSEV et al, 2017. New for the Mykolaiv region.…”

Silicicolous lichen communities of the Ukrainian Crystalline Shield

“…Nimis & Martellos, 2021) are almost never used for ordination of lichen communities. Interest in terricolous, corticolous and silicicolous lichen communities in Ukraine has increased in recent years (Khodosovtsev et al, 2011(Khodosovtsev et al, , 2014(Khodosovtsev et al, , 2017(Khodosovtsev et al, , 2019a(Khodosovtsev et al, , 2019bKhodosovtsev, 2015;Kapets et al, 2018) In Ukraine, the habitat concept of biodiversity conservation has been developing rapidly in recent years and lichen communities are actively used for the characterisation of rocky outcrops habitat types (Kuzemko et al, 2018); therefore, it is very important to properly identify them by comparing with known European syntaxa.…”

“…Nimis & Martellos, 2021) are almost never used for ordination of lichen communities. Interest in terricolous, corticolous and silicicolous lichen communities in Ukraine has increased in recent years (Khodosovtsev et al, 2011, 2014, 2017, 2019a, 2019b; Khodosovtsev, 2015; Kapets et al, 2018). Kapets et al (2018) studied lichen communities on siliceous rocks in the Teteriv river basin in the Forest zone.…”