Physcia ucrainica

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Physcia ucrainica
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Caliciales
Family: Physciaceae
Genus: Physcia
Species:
P. ucrainica
Binomial name
Physcia ucrainica
Kondratyuk, Lőkös & J.-S.Hur (2015)
Physcia ucrainica
Holotype: Novyi Svit botanical reserve, Crimea, Ukraine [1]

Physcia ucrainica is a species of foliose lichen in the family Physciaceae, [2] described from the Crimean Peninsula. It occupies a transitional phylogenetic position related closely to both the Physcia adscendens and Physcia stellaris groups.

Taxonomy and naming

Physcia ucrainica was formally described as a new species in 2015 by the lichenologists Sergey Kondratyuk, László Lőkös, and Jae-Seoun Hur. The specific epithet ucrainica refers to its type locality in Ukraine. [1] Molecular analysis indicates that Physcia biziana and Physcia orientostellaris are closely related within the genus Physcia , forming a clade with P. ucrainica as their sister taxon. [3]

Description

Physcia ucrainica is distinguished by its rosette-like thallus which forms long and narrow lobes that are only horizontally oriented. Unlike Physcia adscendens , it lacks ascending, helmet-shaped lobes and instead features well-developed, laminal, crater-like soralia mainly in the centre of the thallus. These soralia are unique in that they burst through the lichen's upper surface. The lichen is greyish white to dirty grey overall, with a darker grey centre where older soralia are located. The lobes have visible rhizines and cilia , contributing to its distinctive morphology. [1]

An unusual form of the common Physcia adscendens is found in Greece, in which the soralia occur mainly scattered on the thallus surface, where they cause perforations of the thallus lobes. The resultant morphology was noted to be similar to that of Physcia ucrainica, although molecular phylogenetics analysis of the internal transcribed spacer DNA sequences of these taxa suggest that they are independent lineages. [4]

Habitat and distribution

This species is commonly found on horizontally oriented branches of Juniperus excelsa within Juniper forests of the "Novy Svit" Botanical Reserve near Sudak, Crimea. It thrives in Mediterranean Juniperus - Quercus forests, often in association with species like Catapyrenium psoroideum and various other Mediterranean-Atlantic lichens. Physcia ucrainica is known primarily from its type locality in Crimea, where it can be locally abundant. [1]

Related Research Articles

<span class="mw-page-title-main">Physciaceae</span> Family of lichen-forming fungi

The Physciaceae are a family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. A 2016 estimate placed 19 genera and 601 species in the family.

<i>Physcia</i> Genus of lichens

Physcia is a genus of lichen-forming fungi in the family Physciaceae. The widely distributed genus contains about 80 species. The genus is cosmopolitan, and has been extensively studied in various regions in the past several decades, with significant biodiversity in South America identified as a central diversity hotspot. Physcia species are foliose, lobate lichens that grow with a loose to close appressed habit. Their upper surface is typically whitish, pale greenish, green-grey, or dark grey in colour. The thallus colour remains relatively unchanged when moistened. Physcia lichens typically grow on bark, on wood, or rock, although they have occasionally been recorded dwelling on man-made structures. They thrive in nutrient-rich environments and are expanding rapidly in urban areas of the United Kingdom previously affected by SO2 pollution.

Sedelnikovaea is a genus of placodioid lichens in the family Lecanoraceae. The genus was circumscribed in 2015 by Sergey Kondratyuk, Min-Hye Jeong, and Jae-Seoun Hur to contain Sedelnikovaea baicalensis, the type species. Three additional species were transferred into the genus in 2019.

Lecanora ussuriensis is a species of saxicolous (rock-dwelling) lichen in the family Lecanoraceae. It is found in single localities in the Primorsky Krai region of the Russian Far East, as well as in Japan.

Lecidella mandshurica is a species of corticolous (bark-dwelling), crustose lichen in the family Lecanoraceae. It is found in the Russian Far East, South Korea, and China.

Lecanora lojkahugoi is a species of saxicolous (rock-dwelling) crustose lichen in the family Lecanoraceae. It is found in the Russian Far East and in South Korea.

Dibaeis yurii is a little-known species of terricolous (ground-dwelling) lichen in the family Icmadophilaceae. It is found in the Russian Far East and in South Korea.

Alfred Mycolayovych Oxner was a Ukrainian botanist and lichenologist. His research covered various areas: floristics, taxonomy, phylogenetics, phytogeography, and phytosociology. Oxner founded the National Lichenological Herbarium of Ukraine.

Kashiwadia is a genus of lichen-forming fungi in the family Physciaceae. The genus was circumscribed in Sergey Kondratyuk, László Lőkös, and Jae-Seoun Hur in 2014 to contain the species Physcia orientalis, after molecular phylogenetic analysis showed that the taxon occupied an isolated phylogenetic position in the Physciaceae. An additional five species were added to the genus in 2021. The genus name honours Japanese lichenologist Hiroyuki Kashiwadani, who originally described the type species.

<i>Verseghya</i> Genus of lichens

Verseghya is a genus of lichen-forming fungi in the family Pertusariaceae. It has two species. The genus was circumscribed in 2016 by lichenologists Sergey Kondratyuk, Laszlo Lőkös, and Jae-Seoun Hur, with Verseghya klarae assigned as the type species. This crustose species is found in South Korea, where it grows on the bark of a wide variety of both deciduous and coniferous trees. Molecular phylogenetic analysis showed that Verseghya klarae occupied a separate phylogenetic branch in the Pertusariaceae, situated between the genera Ochrolechia and Pertusaria and the Lecanora subcarnea species complex. Verseghya thysanophora was transferred to the genus in 2019. It is widely distributed in the Northern Hemisphere.

<i>Wetmoreana</i> Genus of lichens

Wetmoreana is a genus of lichen-forming fungi in the family Teloschistaceae. It has two crustose, saxicolous (rock-dwelling) species.

<i>Rusavskia</i> Genus of lichens

Rusavskia is a genus of lichen-forming fungi in the family Teloschistaceae. It has 12 species. It is a member of the subfamily Xanthorioideae. The thallus of Rusavskia is characterized by its foliose (leaf-like) structure with distinct and typically narrow lobes that curve outwards.

<i>Opeltia</i> Genus of lichen-forming fungi

Opeltia is a genus of lichen-forming fungi in the family Teloschistaceae. It has four species of corticolous (bark-dwelling), crustose lichens.

<i>Kurokawia</i> Genus of lichens

Kurokawia is a genus of lichen-forming fungi in the family Physciaceae. It has seven species of foliose lichens. The genus, circumscribed in 2021, has Kurokawia isidiata as the type species.

Klauskalbia is a genus of lichen-forming fungi in the family Physciaceae. It has four species of foliose lichens.

<i>Kurokawia palmulata</i> Species of lichen

Kurokawia palmulata, the shaggy fringe lichen, is a species of corticolous (bark-dwelling), foliose lichen in the family Physciaceae.

Fauriea is a genus of lichen-forming fungi in the family Teloschistaceae. The genus, which contains seven species, is a member of the subfamily Caloplacoideae.

Xanthaptychia is a genus of lichen-forming fungi in the family Teloschistaceae. The genus, circumscribed in 2017, has three corticolous (bark-dwelling) species.

Oxneriopsis is a genus of lichen-forming fungi in the family Teloschistaceae. It has four species of corticolous (bark-dwelling), crustose lichens.

Hanstrassia lenae is a species of saxicolous (rock-dwelling) in the family Teloschistaceae. Described as a new species in 2007, the lichen is found in Russian Far East, Mongolia, and Siberia. It closely resembles Elenkiniana ehrenbergii but distinguished by the presence of soralia on its thallus. This species has a thick, effigurate thallus with weak marginal lobes and developed marginal, labriform (lip-shaped) soralia.

References

  1. 1 2 3 4 Kondratyuk, S.Y.; Lőkös, L.; Kapetz, N.V.; Pleskach, L.Ya.; Kim, J.; Hur, J.-H. (2015). "Physcia ucrainica sp. nova (Physciaceae, Ascomycota) from the Crimean Peninsula, proved by molecular phylogeny". Acta Botanica Hungarica. 57 (1–2): 143–163. doi:10.1556/ABot.57.2015.1.2.11.
  2. ↑ "Physcia ucrainica S.Y. Kondr., Lőkös & Hur". Catalogue of Life . Species 2000: Leiden, the Netherlands. Retrieved 26 April 2023.
  3. ↑ Kondratyuk, S.Y.; Lőkös, L.; Kärnefelt, I.; Thell, A.; Jeong, M.-H.; Oh, S.-O.; Kondratiuk, A.S.; Farkas, E.; Hur, J.-S. (2021). "Contributions to molecular phylogeny of lichen-forming fungi 2. Review of current monophyletic branches of the family Physciaceae" (PDF). Acta Botanica Hungarica. 63 (3–4): 351–390. doi:10.1556/034.63.2021.3-4.8.
  4. ↑ Gavalas, Ioannis; Sipman, Harrie J.M. (2018). "A lichen inventory on the island of Iraklia (Cyclades Islands, Greece)" (PDF). Parnassiana Archives. 7: 31–49 [37].
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