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Caloplaca

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Ulf Arup – 1st expert on this subject based on the ideXlab platform

  • Caloplaca monacensis en annu okand art
    Lavbulletinen; 2019(1) pp 33-34 (2019), 2019
    Co-Authors: Ulf Arup

    Abstract:

    Kanner du till Caloplaca monacensis och vet hur man skiljer den fran dess narmaste slaktingar? Om inte sa har du chansen att lara kanna arten lite battre genom denna artikel.

  • taxonomy and phylogeny of the Caloplaca cerina group in europe
    Lichenologist, 2011
    Co-Authors: Jaroslav Soun, Ulrik Søchting, Jan Vondrak, Alexander Khodosovtsev, Pavel Hrouzek, Ulf Arup

    Abstract:

    Using ITS nrDNA sequence data, the Caloplaca cerina group (Teloschistaceae) is defined here as a monophyletic, but internally richly branched lineage. The group is also characterized by a combination of morphological and anatomical characters. Its internal lineages are supported by phenotypic characters in addition to ecology and distribution. Within the large C. cerina group, we have found at least 20 phylospecies in the temperate zone of the Northern Hemisphere. Two species complexes do not produce any vegetative diaspores: the polyphyletic, corticolous Caloplaca cerina s. lat. (six separated cryptic or semi-cryptic species) and the monophyletic C. stillicidiorum s. lat. that grows mainly on plant debris, small shrubs and bryophytes and consists of at least four internal lineages. All lineages producing vegetative diaspores (soredia, blastidia, isidia or lobules) are phenotypically characteristic and represent fairly easily distinguishable species: C. chlorina, C. isidiigera, C. monacensis, C. subalpina, C. thracopontica, C. turkuensis and C. ulmorum. Only the North American sorediate C. pinicola possibly represents an aggregate of species. Caloplaca sterilis is described as a new species. A key to the phenotypically distinguishable species is provided. Lectotypes are designated for C. albolutea, Caloplaca cerina f. coronulata and for C. monacensis. The Australian C. hanneshertelii belongs to this group, but this and other possible species from the Southern Hemisphere are not treated here in detail. Some species traditionally placed in the C. cerina group due to their similar morphology are excluded here on the basis of our phenotype examinations and molecular data. Caloplaca albolutea, C. mydalaea and C. virescens are uncertain taxa and their identities still remain unclear. (Less)

  • three new dark fruited Caloplaca species
    Bibiotheca Lichenologica 106. Biomonitoring ecology and systematics of lichens. Recognizing the lichenological legacy of Thomas H. Nash III on his 65t, 2011
    Co-Authors: Ulf Arup, Peter P G Van Den Boom

    Abstract:

    Three species of Caloplaca are described as new to
    science: Caloplaca caesiosorediata Arup & van den Boom, a
    corticolous species and two saxicolous species, Caloplaca
    catillarioides Arup & van den Boom, and C. caesioisidiata Arup &
    van den Boom, all from the archipelago of Cape Verde. They are
    dark-fruited and have a pale to dark greyish crustose thallus. None of
    the new species are phylogentically related to the Pyrenodesmia
    group, but closely related to each other.

Ulrik Søchting – 2nd expert on this subject based on the ideXlab platform

  • taxonomy and phylogeny of the Caloplaca cerina group in europe
    Lichenologist, 2011
    Co-Authors: Jaroslav Soun, Ulrik Søchting, Jan Vondrak, Alexander Khodosovtsev, Pavel Hrouzek, Ulf Arup

    Abstract:

    Using ITS nrDNA sequence data, the Caloplaca cerina group (Teloschistaceae) is defined here as a monophyletic, but internally richly branched lineage. The group is also characterized by a combination of morphological and anatomical characters. Its internal lineages are supported by phenotypic characters in addition to ecology and distribution. Within the large C. cerina group, we have found at least 20 phylospecies in the temperate zone of the Northern Hemisphere. Two species complexes do not produce any vegetative diaspores: the polyphyletic, corticolous Caloplaca cerina s. lat. (six separated cryptic or semi-cryptic species) and the monophyletic C. stillicidiorum s. lat. that grows mainly on plant debris, small shrubs and bryophytes and consists of at least four internal lineages. All lineages producing vegetative diaspores (soredia, blastidia, isidia or lobules) are phenotypically characteristic and represent fairly easily distinguishable species: C. chlorina, C. isidiigera, C. monacensis, C. subalpina, C. thracopontica, C. turkuensis and C. ulmorum. Only the North American sorediate C. pinicola possibly represents an aggregate of species. Caloplaca sterilis is described as a new species. A key to the phenotypically distinguishable species is provided. Lectotypes are designated for C. albolutea, Caloplaca cerina f. coronulata and for C. monacensis. The Australian C. hanneshertelii belongs to this group, but this and other possible species from the Southern Hemisphere are not treated here in detail. Some species traditionally placed in the C. cerina group due to their similar morphology are excluded here on the basis of our phenotype examinations and molecular data. Caloplaca albolutea, C. mydalaea and C. virescens are uncertain taxa and their identities still remain unclear. (Less)

  • Caloplaca magellanica sp. nov., a southern Patagonian parasite on Zahlbrucknerella
    , 2011
    Co-Authors: Ulrik Søchting, Leopoldo G. Sancho

    Abstract:

    Caloplaca magellanica is described from southernmost Chile. It is lichenicolous on Zahlbrucknerella maritima and characterized by two-celled spores with a thin septum and a central

  • the taxonomy of the Caloplaca citrina group teloschistaceae in the black sea region with contributions to the cryptic species concept in lichenology
    Lichenologist, 2009
    Co-Authors: Jan Vondrak, Ulf Arup, Pavel řiha, Ulrik Søchting

    Abstract:

    A new taxonomy of the Caloplaca citrina group in the Black Sea region is presented. It is based on the nrDNA ITS molecular data, chemistry (anthraquinone contents) and 20 morphological characters. Six species previously known in the region are accepted: Caloplaca arcis, C. calcitrapa, C. dichroa, C. flavocitrina, C. geleverjae, C. limonia. Five new species are described: Caloplaca arcisproxima, C. austrocitrina, C. communis, C. confusa and C. nigromarina. Seven further species, Caloplaca britannica, C. citrina, C. marina, C. maritima, C. microthallina, C. ora and C. phlogina are also treated briefly. Some maritime species known from the Atlantic coast of Europe are absent from the region, and, surprisingly, Caloplaca citrina s. str. could not be confirmed from the study area. A key to the species present in the region is provided, although morphological characters are of very limited value in this group. The variability and taxonomic importance of particular features are discussed. No significant differences in secondary chemistry were observed among the species. Many examples of convergence and some semi-cryptic species were revealed by molecular data. The term ‘semi-cryptic species’ is introduced here into lichenology for those species which cannot be clearly diagnosed by their morphology, but which are determined by other characters, mainly by their ecology and distribution. We propose to describe formally such species, in spite of difficulties with subsequent morphological identification. (Less)

Jan Vondrak – 3rd expert on this subject based on the ideXlab platform

  • three new seemingly cryptic species in the lichen genus Caloplaca teloschistaceae distinguished in two phase phenotype evaluation
    Annales Botanici Fennici, 2016
    Co-Authors: Jan Vondrak, Alexander Khodosovtsev, Karina Wilk, Ivan Frolov, Fernando Fernandezmendoza, Mehmet Gokhan Halici

    Abstract:

    We describe three new, seemingly-cryptic species in the lichen genus Caloplaca (Teloschistaceae) with black apothecia. Those species, separated in nrITS and β-tubulin DNA phylogenies, appeared to be phenotypically indistinguishable. We looked for their phenotypic differences using a two-phase method comprised of a preliminary examination in which diagnostic value of all available characters was evaluated using a small number of samples and potentially-diagnostic characters were selected, and a subsequent detailed study in which characters selected in the first phase were tested using more samples. We found 19 diagnostic characters (continuous and discrete) of which four continuous and three discrete characters could be considered “fully diagnostic”, i.e. allowing for correct identification of at least one species. Hence, the three species are not cryptic, but can be distinguished phenotypically. Here, they are formally described as Caloplaca micromarina Frolov, Khodos. & Vondrak sp. nova, C. micromontana Frolov, Wilk & Vondrak sp. nova and C. microstepposa Frolov, Nadyeina, Khodos. & Vondrak sp. nova.

  • Contribution to the knowledge of the genus Caloplaca in Central European Russia
    Polish Botanical Journal, 2014
    Co-Authors: Eugenia Muchnik, Jan Vondrak, Karina Wilk, Ivan Frolov

    Abstract:

    Abstract
    The paper provides data on 21 Caloplaca Th. Fr. species from central European Russia. Two species are new for Russia: C. atroflava (Turner) Mong. s.l. and C. soralifera Vondrák & Hrouzek. A further seven are new for European Russia [C. flavocitrina (Nyl.) H. Olivier, C. inconnexa (Nyl.) Zahlbr., C. marmorata (Bagl.) Jatta, C. oasis (A. Massal.) Szatala] or central European Russia [C. dichroa Arup, C. interfulgens (Nyl.) J. Steiner, C. monacensis (Leder.) Lettau]. Short taxonomic notes together with information on habitat and distribution are provided for the newly recorded species. An additional twelve Caloplaca species recognized in the area are also briefly presented.

  • Caloplaca anularis and Caloplaca scrobiculata are distinct
    Herzogia, 2013
    Co-Authors: Jan Vondrak, Helmut Mayrhofer

    Abstract:

    Vondrak, J. & Mayrhofer, H. 2013. Caloplaca anularis and Caloplaca scrobiculata are distinct. – Herzogia 26: 21-29. Caloplaca anularis, described from the Western Alps, and Caloplaca scrobiculata, described from Central Asia, are distinct species. The main differences are the shape of the thallus margin, the anatomy of the thalline cortex, charac- ters of the algal layer and the ascospores. Caloplaca anularis is a widespread lichen known from mountain ranges in Europe (Alps, Carpathians, Balkan Peninsula), Near Asia (continental Turkey and Caucasus) and Central Asia (Altay, Karakorum, Hengduan Shan). The specimens from Central Asia differ slightly from the European specimens in thal- lus and medulla thickness, but we consider this difference environmentally induced and taxonomically insignificant. Caloplaca scrobiculata is restricted to arid mountain ranges of Central Asia. The Central Asian Caloplaca bohlinii does not differ significantly from C. anularis. The new combination Caloplaca anularis f. ignea is made for speci- mens of C. anularis with a red thallus. Zusammenfassung: Vondrak, J. & Mayrhofer, H. 2013. Caloplaca anularis und Caloplaca scrobiculata sind verschieden. – Herzogia 26: 21-29. Caloplaca anularis, beschrieben aus den Westalpen, und Caloplaca scrobiculata, beschrieben aus Zentralasien, sind verschiedene Arten. Die wichtigsten Unterschiede sind die Form des Lagerrandes, die Anatomie der Lagerrinde, die Merkmale der Algenschicht und der Ascosporen. Caloplaca anularis ist eine weit verbreitete Flechte, die aus Gebirgen in Europa (Alpen, Karpaten, Gebirge der Balkanhalbinsel), Vorderasien (kontinentale Turkei und Kaukasus) und Zentralasien (Altai, Karakorum, sudosttibetisches Randgebirge) bekannt ist. Die Proben aus Zentralasien unter- scheiden sich gering von denen aus Europa hinsichtlich der Dicke von Lager und Mark, aber diese Merkmale werden als umweltbedingt induziert und taxonomisch unbedeutend betrachtet. Caloplaca scrobiculata ist beschrankt auf aride Gebirge in Zentralasien. Die zentralasiatische Caloplaca bohlinii unterscheidet sich nicht deutlich von C. anularis. Die neue Kombination Caloplaca anularis f. ignea wird eingefuhrt fur Proben mit rotem Lager.