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Author: L e u c k e r t , C

  • Leuckert, C/ Hertel, H 1967: Uber Flechtenstoffe und Systematik einiger Arten der Gattung Lecidea. - Nova Hedwigia 14: 291-300. [RLL List # 66 / Rec.# 11406]
    Keywords: LECIDEA/ SYSTEMATICS/ CHEMISTRY
    Abstract: 6 tab.
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  • Leuckert, C 1968: Die Inhaltsstoffe von Acarospora heufleriana Koerb.. - Herzogia 1: 53-55. [RLL List # 69 / Rec.# 11433]
    Keywords: CHEMISTRY/ ACAROSPORA HEUFLERIANA/ RHIZOCARPIC/ NORSTICTIC
    Abstract: ["... rhizocarpic acid in the cortex and norstictic acid in the medulla."--English summary.]
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  • Hertel, H/ Leuckert, C 1969: Uber Flechtenstoffe und Systematik einiger Arten der Gattung Lecidea, Placopsis und Trapelia mit C+ rot reagierendem Thallus. - Willdenowia 5: 369-383. [RLL List # 74 / Rec.# 8399]
    Keywords: TRAPELIA/ LECIDEA/ PLACOPSIS/ NEW TAXA/ LECIDELLA
    Abstract: 2 tab. [New: Lecidella achristotera (Nyl.) comb. nov., L. endolithea (Lynge) comb. nov., L. flavisorediata (Vezda) comb. nov., L. incongruella (Vain.) comb. nov., L. laceola (Nyl.) comb. nov., L. scabra (Tayl.) comb. nov., L. spitsbergensis (Lynge) comb. nov., L. stigmatea (Ach.) comb. nov., L. subincongrua (Nyl.) comb. nov., with var. elaeochromoides (Nyl.) comb. nov., L. viridans var. chodati (Samp.) comb. nov.]
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  • Leuckert, C/ Guse, K/ Poelt, J 1969: Zur Chemotaxonomie der Pertusaria hymenia-Gruppe. - Herzogia 1: 159-171. [RLL List # 71 / Rec.# 11405]
    Keywords: PERTUSARIA HYMENIA/ CHEMISTRY
    Abstract: 1 pl. 2 tab. [8 species.]
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  • Leuckert, C/ Hertel, H 1969: Uber Flechtenstoffe und Systematik einiger Arten der Gattung Lecidea II. - Nova Hedwigia 17: 31-43. [RLL List # 74 / Rec.# 11407]
    Keywords: LECIDEA/ CHEMISTRY/ SYSTEMATICS
    Abstract: 8 tab.
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  • Leuckert, C/ Redlich, B 1969: Die Inhaltsstoffe einiger Pertusaria-Arten mit C+ rot reagierendem Thallus (Lichenes, Pertusariaceae). - Österreich. Bot. Zeitschr. 117: 258-264. [RLL List # 74 / Rec.# 11426]
    Keywords: PERTUSARIACEAE/ CHEMISTRY
    Abstract: 1 tab. [5 species.]
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  • Leuckert, C/ Poelt, J 1970: Cladonia conistea in Mitteleuropa. - Herzogia 1: 441-445. [RLL List # 77 / Rec.# 11423]
    Keywords: CLADONIA CONISTEA/ EUROPE/ DISTRIBUTION
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  • Leuckert, C/ Poelt, J/ Schultz, G 1970: Chemotaxonomische Probleme in der Flechtengattung Pertusaria. - Vortrage aus dem Gesamtegebiet der Botanik, N.F. [Deutsch. Bot. Ges.] 4: 45-60. [RLL List # 75 / Rec.# 11421]
    Keywords: CHEMOTAXONOMY/ CHEMISTRY/ PERTUSARIA
    Abstract: 4 tab. [English summary.]
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  • Leuckert, C/ Poelt, J/ Schultz, I/ Schwarz, B 1975: Chemotaxonomie und stammesgeschichtliche Differenzierung des Formenkreises von Parmelia prolixa in Europa (Lichenes, Parmeliaceae). - Decheniana 127: 1-36. [RLL List # 93-78 / Rec.# 11422]
    Keywords: PARMELIA/ EUROPE/ CHEMOTAXONOMY/ PARMELIACEAE
    Abstract: 20 fig. 2 tab.
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  • Poelt, J/ Leuckert, C 1976: Lecanora (Plac.) sphalera spec. nov. (Lichenes, Lecanoraceae) und die Frage, die sie stellt. - Herzogia 4: 25-31. [RLL List # 96 / Rec.# 14745]
    Keywords: NEW TAXA/ LECANORA/ PLACODIUM/ LECANORACEAE
    Abstract: 1 figure. [New: Lecanora sphalera sp. nov.]
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  • Leuckert, C/ Poelt, J/ Hahnel, G 1977: Zur Chemotaxonomie der eurasischen Arten der Flechtengattung Rhizoplaca. - Nova Hedwigia 28: 71-129. [RLL List # 96 / Rec.# 11420]
    Keywords: RHIZOPLACA/ EUROPE/ ASIA/ LECANORACEAE/ NEW TAXA
    Abstract: 15 figures. 13 maps. [3 species. New: Rhizoplaca melanophthalma (Ram.) Leuckert & Poelt comb. nov. with var. obscura (J. Stein.) Leuckert & Poelt comb. nov., R. peltata (Ram.) Leuckert & Poelt comb. nov.]
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  • Mathey, A/ Leuckert, C 1977: Die Inhaltstoffe von Lecanora cerebellina Poelt (Lichenes, Lecanoraceae). - Herzogia 4: 351-355. [RLL List # 99 / Rec.# 12419]
    Keywords: CHEMISTRY/ LECANORA/ LECANORACEAE
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  • Leuckert, C/ Buschardt, A 1978: Chemosystematische Untersuchung einiger Arten von Acarospora subgenus Xanthothallia H. Magn. Inhaltsstoffe und ihre Lokalisation (Lichenes, Acarosporaceae). - Nova Hedwigia 30: 799-814. [RLL List # 103-55 / Rec.# 11403]
    Keywords: ACAROSPORA/ CHEMISTRY/ XANTHOTHALLIA/ NEW TAXA/ TLC/ MASS SPECTROMETRY
    Abstract: 1 table. 2 figures. [Analysis of 10 species by TLC and mass spectrometry. New: Acarospora sulphurata var. rubescens Buschardt var. nov. Two chemical strains of A. chrysocardia also discovered.]
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  • Roth, K/ Mathey, A/ Leuckert, C 1978: Die Xanthone von Buellia galapagoana Weber (Lichenes, Physciaceae). - Willdenowia 8: 363-368. [RLL List # 100 / Rec.# 15909]
    Keywords: BUELLIA/ CHEMISTRY/ XANTHONES/ PHYSCIACEAE
    Abstract: 2 figures.
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  • Hertel, H/ Leuckert, C 1979: Rhizocarpon dinothetes n. sp., eine auf Lecanora badia parasitierende Flechte in der Alpen. - Herzogia 5: 25-37. [RLL List # 106-38 / Rec.# 8400]
    Keywords: RHIZOCARPON/ ALPS/ NEW TAXA/ PARASITE/ LECANORA/ EUROPE
    Abstract: 6 figures. [New: Rhizocarpon dinothetes sp. nov. The new species belongs to the R. viridiatrum group.]
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  • Leuckert, C/ Dolling, K/ Wolters, W 1979: Chemische Flechtenanalysen. - Herzogia 5: 181-185. [RLL List # 106-60 / Rec.# 11404]
    Keywords: CHEMISTRY/ ICMADOPHILA/ PARMELIA/ EUROPE
    Abstract: [Detailed studies of the chemistry of Icmadophila ericetorum and Parmelia stygia from Europe.]
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  • Hecklau, C/ Leuckert, C/ Mayrhofer, H 1981: Beitrage zur Chemie der Flechtengattung Rinodina (Ach.) Gray I. - Herzogia 5: 489-498. [RLL List # 113-24 / Rec.# 8156]
    Keywords: CHEMISTRY/ RINODINA/ RINODINELLA/ XANTHONE/ SOUTH AMERICA/ SAXICOLOUS
    Abstract: [Chemical analyses of 20 species of primarily saxicolous species of Rinodina and Rinodinella are reported. "For the first time a compound of a xanthone-type was detected in the genus Rinodina: an O-methyldiclhloronorlichexanthone in Rinodina cf. lepida from South America."]
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  • Leuckert, C/ Barmann, U/ Schug, G 1981: Chemische Flechtenanalysen II. - Herzogia 5: 465-473. [RLL List # 113-60 / Rec.# 11400]
    Keywords: CLADONIA/ CHEMISTRY/ LECANORA/ EUROPE
    Abstract: [Study of two chemical strains of Cladonia uncialis in Europe, and four chemical strains of Lecanora gracea.]
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  • Leuckert, C/ Buschardt, A/ Hertel, H 1981: Die Verteilung der Chemotypen von Dimelaena oreina (Lichenes) auf verschiedene Hohenstufen an einem Transekt im Vinschagau (Sudtirol, Italien). - Nova Hedwigia 34: 623-631. [RLL List # 113-61 / Rec.# 11402]
    Keywords: ITALY/ TIROL/ DIMELAENA/ CHEMOTYPES/ ALTITUDE/ SAXICOLOUS/ EUROPE
    Abstract: 3 tables. 1 figure. [Study of an altitudinal transect from 700 to 2700 meters showed presence of all four chemotypes at lower elevations, but only two types at higher elevations. "In the lower parts the greater number of chemotypes is correlated with more diverse types of biotypes. The decrease of the number of chemotypes from lower to higher regions may be compared with its decrease from south to north in Europe--which is an expression of the so-called north-south gradient."]
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  • Leuckert, C/ Meinel, U 1981: Chemische Flechtenanalysen III. Die Haematomma ventosum-gruppe. - Herzogia 5: 475-488. [RLL List # 113-62 / Rec.# 11419]
    Keywords: CHEMISTRY/ HAEMATOMMA/ EUROPE/ SWEDEN/ NORWAY/ CHEMOTYPES
    Abstract: 2 maps. 3 figures. 1 table. [Study of specimens from central Europe, Norway and Sweden revealed 5 chemotypes with various combinations of usnic, divaricatic, hypothamnolic, thamnolic, and psoromic acids. Other accessory substances were also detected. Barbatic acid and zeorin were not found in any of the specimens.]
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  • Leuckert, C 1983: Das Naturdenkmal Windmühlenberg in Berlin-Gatow bedeutung und gefährdung der Flechtenflora. - Berliner Naturschutzblatter 27: 9-11. [RLL List # 198 / Rec.# 26764]
    Keywords: BERLIN/ GERMANY
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  • Leuckert, C 1984: Die Identifizierung von Flechtenstoffen im Rahmen chemotaxonomischer Routineanalysen. - In: H. Hertel & F. Oberwinkler (eds.): Beitrage zur Lichenologie. Festschrift J. Poelt. Beiheft zur Nova Hedwigia 79. J. Cramer, Vaduz, pp. 839-869. [RLL List # 123-79 / Rec.# 11434]
    Keywords: CHEMICAL ANALYSIS/ OWN/ REVIEW/ MASS SPECTROMETRY/ CHROMATOGRAM SPECTRAL PHOTOMETRY
    Abstract: 3 tables. 10 figures. [A critical examination of the chemical analysis techniques routinely used in lichenology. Mass spectra peaks for 120 substances are reported and the usefulness of chromatogram spectral photometry is discussed.]
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  • Leuckert, C/ Mayrhofer, H 1984: Beitrage zur Chemie der Flechtengattung Rinodina (Ach.) Gray II. - Herzogia 6: 373-385. [RLL List # 121-55 / Rec.# 11417]
    Keywords: RINODINA/ OWN/ SUBSTANCES/ THIOMELINE
    Abstract: 2 tables. [A chemical survey of 20 specimens of 13 species in Rinodina is reported. Authors report a new pigment named thiomeline from R. thiomela and R. lepida.]
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  • Poelt, J/ Leuckert, C 1984: Lecanora cavicola Creveld, ihre Apothecien, ihr Chemismus und ihre systematische Stellung. - Herzogia 6: 411-418. [RLL List # 121-72 / Rec.# 14746]
    Keywords: LECANORA/ APOTHECIA/ OWN/ NORWAY/ EUROPE
    Abstract: 5 figures. [First reports of fertile material of Lecanora cavicola from Central Europe. Chemically the species produces atranorin and alectorialic acid. Authors believe it should remain in the genus Lecanora although the species holds an isolated position.]
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  • Hanko, B/ Leuckert, C/ Ahti, T 1985: Beitrage zur Chemotaxonomie der Gattung Ochrolechia (Lichenes) in Europa. - Nova Hedwigia 42: 165-199. [RLL List # 127-65 / Rec.# 7617]
    Keywords: OCHROLECHIA/ CHEMISTRY/ EUROPE
    Abstract: 2 tables. [Study of 600 specimens tested by TLC and other chemical techniques. Sixteen species are recognized; "... the information presented by Verseghy (1962) and Howard (1970) has been corrected and expanded as far as possible."]
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  • Leuckert, C 1985: Probleme der Flechten-Chemotaxonomie -- Stoffkombinationen und ihre taxonomische Wertung. Problems of lichen chemotaxonomy -- patterns of substances and their taxonomical valuation. - Berichte der Deutschen Botanischen Gesellschaft 98: 401-408. [RLL List # 129-105 / Rec.# 11435]
    Keywords: CHEMOTAXONOMY/ REVIEW/ CHEMOSYNDROMES/ TAXONOMY
    Abstract: 2 figures. [Discussion of chemical characteristics in lichen systematics, especially chemosyndromic variation (simple and complex types). In German; English summary.]
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  • Leuckert, C/ Mayrhofer, H 1985: Chemische Flechtenanalysen IV. - Herzogia 7: 99-104. [RLL List # 129-106 / Rec.# 11418]
    Keywords: CHEMISTRY/ SULPHURELLIN/ LECANORA/ DIMELAENA
    Abstract: 3 figures. [Sulphurellin, a depside known previously from Lecanora sulphurella, has been discovered in Dimelaena australiensis.]
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  • Mayrhofer, H/ Leuckert, C 1985: Beitrage zur Chemie der Flechtengattung Rinodina (Ach.) Gray III. - Herzogia 7: 117-129. [RLL List # 129-111 / Rec.# 12515]
    Keywords: RINODINA/ CHEMISTRY/ TLC/ CONFLUENTIC/ 2'-O-METHYLPERLATOLIC
    Abstract: 1 table. [Analysis of 52 specimens of 26 species by TLC. "Confluentic acid and 2'-O-methylperlatolic acid were found as new for the genus. Two chemical strains were found in Rinodina subglaucescens."]
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  • Leuckert, C/ Schirrmeister, M/ Hansen, ES 1987: Chemosystematical investigation of lichens from Greenland, Dimelaena oreina (Ach.) Norm. - Botanische Jahrbucher fur Systematik 108(2-3): 373-379. [RLL List # 138 / Rec.# 11429]
    Keywords: GREENLAND/ DIMELAENA/ CHEMISTRY
    Abstract: 2 figures. 1 table. [Authors found only Chemotypes 0 and II in 45 samples. Chemotype 0 may be better adapted to severe climatic conditions. "This fact corresponds to the known rule, proven above all for Europe, according to which "0-types" (that is types without colourless medulla substances) dominate in the northern areas."]
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  • Leuckert, C/ Schirrmeister, M/ Hensen, ES 1987: Chemosystematical investigation of lichens from Greenland, Dimelaena oreina (Ach.) Norm. - Botanische Jahrbucher fur Systematik 108: 373-379. [RLL List # 133 / Rec.# 11430]
    Keywords: CHEMOTAXONOMY/ GREENLAND/ DIMELAENA/ SYSTEMATICS/ TLC/ CHEMOTYPES
    Abstract: 1 table. 2 figures. [Study of 45 samples using TLC showed two chemotypes 0 (only usnic acid) and II (usnic acid and gyrophoric acid with lecanoric acid; without ovoic acid). "The distribution of the chemotypes shows the tendency of chemotype 0 -- in comparison to chemotype II -- being adapted to more severe climatic conditions." The same pattern is found in northern Europe.]
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  • Leuckert, C/ Kummerling, H 1989: Chemische Flechtenanalysen V. Pannarsaure-6-methylester in einer Art der Gattung Lepraria und in Leprocaulon tenellum. - Herzogia 8: 141-147. [RLL List # 138 / Rec.# 11414]
    Keywords: CHEMISTRY/ LEPRARIA/ LEPROCAULON/ PANNARIC
    Abstract: 5 figures. ["The structure of pannaric acid 6-methylester was assigned to the major compound of Lepraria spec. from the Lepraria membranacea group; besides, a trace of pannaric acid as well as traces of unidentified phenolic compounds and atranorin (+) could be found in the species."]
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  • Leuckert, C/ Poelt, J 1989: Studien uber die Lecanora rupicola-Gruppe in Europa (Lecanoraceae). - Nova Hedwigia 49(1-2): 121-167. [RLL List # 138 / Rec.# 11425]
    Keywords: LECANORA RUPICOLA/ EUROPE/ CHEMISTRY/ NEW TAXA/ KEY
    Abstract: 8 maps. 4 tables. 3 figures. [Treatment of four saxicolous species and subspecific taxa; key. Several chemotypes are demonstrated. New: Lecanora bicincta Ramond var. sorediata (Flotow) comb. nov., L. rupicola (L.) Zahlbr. subsp. rupicola var. efflorens var. nov., L. rupicola (L.) Zahlbr. subsp. subplanata (Nyl.) comb. nov., L. rupicola (L.) Zahlbr. subsp. sulphurata (Ach.) comb. nov., L. rupicola (L.) Zahlbr. subsp. arctoa subsp. nov., L. swartzii (Ach.) Ach. subsp. nylanderi (Rasanen) comb. nov., L. swartzii (Ach.) Ach. subsp. nuorensis subsp. nov., and L. swartzii (Ach.) Ach. subsp. caulescens (Steiner) comb. nov.]
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  • Holzmann, G/ Leuckert, C 1990: Applications of negative fast atom bombardment and MS/MS to screening of lichen compounds. - Phytochemistry 29(7): 2277-2283. [RLL List # 143 / Rec.# 8689]
    Keywords: NEGATIVE FAST ATOM BOMBARDMENT/ CHEMISTRY/ TECHNIQUES
    Abstract: 7 figures. 2 tables. ["The combination of these methods enables the unambiguous structural determination of the components within crude extracts of lichens. Thus, compounds of the tridepside, didepside, depsidone, and usnic acid type were identified by their specific fragmentation patterns without any isolation, purification or derivatization procedures."]
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  • Leuckert, C/ Ahmadjian, V/ Culberson, CF/ Johnson, A 1990: Xanthones and depsidones of the lichen Lecanora dispersa in nature and of its mycobiont in culture. - Mycologia 82(3): 370-378. [RLL List # 142 / Rec.# 11399]
    Keywords: CULTURE/ MYCOBIONT/ LECANORA/ PANNARIN/ XANTHONES/ CHEMISTRY
    Abstract: 3 tables. 6 figures. ["A chemotype of the natural lichen Lecanora dispersa contains 2, 7-dichlorolichexanthone as the major secondary compound, but cultured spore isolates, growing without the alga, produced pannarin and related depsidones (HPLC, TLC, and MS) instead. Surprisingly, pannarin could not be confirmed in voucher materials of the natural source lichen, but the biosynthetic potential for this depsidone was proven for the species by a herbarium survey. The production of pannarin by the isolated mycobionts reported in the present study, however, unequivocally confirms Komyia and Shibata's hypothesis that typical lichen depsidones can indeed be synthesized by isolated lichen fungi with no assistance from the alga."]
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  • Leuckert, C/ Knoph, J-G/ Ziegler, HG/ Hertel, H 1990: Chemotaxonomische Studien in der Gattung Lecidella (Lecanorales, Lecanoraceae) I. - Herzogia 8: 265-272. [RLL List #  / Rec.# 11413]
    Keywords: 4, 5-DICHLORO-3-O-METHYL-NORLICHEXANTHONE/ 4, 5-DICHLORONORLICHEXANTHONE/ ARTHOTHELIN/ ATRANORIN/ CHLORATRANORIN/ DIPLOICIN/ LECANORACEAE/ LECIDELLA/ MASS CHROMATOGRAPHY/ MASS SPECTROMETRY/ THIOPHANINIC/ THURINGIONE
    Abstract: [Specimens of Lecidella carpathica and L. viridans, including the type specimens, were analyzed by TLC and mass spectrometry. L. carpathica contains atranorin, chloroatranorin, diploicin, thuringione, and traces of 4, 5-dichloro-3-O-methylnorlichexanthone. L. viridans contains thiophanic acid, arthothelin, and traces of 4, 5-dichloronorlichexanthone.]
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  • Kümmerling, H/ Leuckert, C/ Wirth, V 1991: Chemische Flechtenanalysen VI. Lepraria incana (L.) Ach. - Nova Hedwigia 53(3-4): 507-517. [RLL List #  / Rec.# 9626]
    Keywords: LEPRARIA/ LEPROLOMA
    Abstract: 1 fig. [Study based on analysis of 183 specimens, mostly from central Europe. Aspects of the morphology, ecology, and taxonomy of L. incana are also described. Based on the study of type material, Lepraria crassissima is regarded as a synonym, although a number of chemically and morphologically distinct species are included under that name in herbaria.]
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  • Leuckert, C/ Kummerling, H 1991: Chemotaxonomische Studien in der Gattung Leproloma Nyl. ex Crombie (Lichenes). - Nova Hedwigia 52(1-2): 17-32. [RLL List # 143 / Rec.# 11415]
    Keywords: CHEMISTRY/ LEPROLOMA/ NEW TAXA/ COLOMBIA
    Abstract: 1 table. 1 figure. [Detailed study of 240 specimens primarily from Europe. Several substances are reported for the first time, and some new distribution records are given. New: Leproloma sipmanianum Kummerling & Leuckert sp. nov. (Colombia).]
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  • Leuckert, C/ Rux, K-D 1991: Die Flechtenflora von Berlin (West) mit besonderer Berücksichtigung epiphytischer und epigäischer Sippen (Rote Liste). - Landschaftsentwicklung und Umweltforschung 6: 119-124. [RLL List #  / Rec.# 11427]
    Keywords: ENDANGERED SPECIES/ GERMANY/ RED LIST
    Abstract: tab. 1
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  • Poelt, J/ Leuckert, C 1991: Der Formenkreis von Protoparmelia atriseda (Lichenes, Lecanoraceae) in Europa. - Nova Hedwigia 52(1-2): 39-64. [RLL List # 143 / Rec.# 14747]
    Keywords: PROTOPARMELIA/ CHEMISTRY/ EUROPE/ LECANORA/ KEY/ NEW TAXA/ MASSACHUSETTS/ COLORADO
    Abstract: 3 maps. 3 plates. ["The lichens related to Protoparmelia (formerly Lecanora) atriseda are distinguished within the genus Protoparmelia by filiform, often curved spermatia, by the regular presence of norstictic acid, at least in excipula, and by close parasitic connections to various lichen hosts." Treatment of five species; key. New: Protoparmelia Sect. Phaeonora sect. nov., Protoparmelia cupreobadia (Nyl.) Poelt comb. nov., P. leproloma (R. Sant.) Rambold & Poelt comb. nov., P. phaeonesos Poelt sp. nov., and P. placentiformis (Steiner) Poelt comb. nov.]
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  • Posner, B/ Feige, GB/ Leuckert, C 1991: Beitrage zur Chemie der Flechtengattung Lasallia Merat. - Zeitschrift fur Naturforschung, Part C 46: 19-27. [RLL List # 143 / Rec.# 14956]
    Keywords: LASALLIA/ CHEMISTRY/ DEPSIDES/ ANTHRAQUINONES
    Abstract: 3 figures. 1 table. [Chemical studies on 11 species by HPLC. Hiascic acid and ovoic acid are reported for the first time from the genus. A key to the taxa is also included.]
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  • Leuckert, C/ Knoph, J-G/ Hertel, H 1992: Chemotaxonomische Studien in der Gattung Lecidella (Lecanorales, Lecanoraceae) II. Europäische Arten der Lecidella asema-Gruppe. - Herzogia 9: 1-17. [RLL List # 151 / Rec.# 11410]
    Keywords: CHEMOSYNDROMES/ CHEMOTYPES/ LECIDELLA/ MASS SPECTROMETRY/ TLC/ XANTHONES
    Abstract: 11 map [Thin-layer chromatography and mass spectrometry were used to study the chemotypes and chemosyndromes in this group of crustose lichens. The european distributions of the species and their chemotypes are described.]
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  • Leuckert, C/ Knoph, J-G 1992: European taxa of saxicolous Lecidella containing chloroxanthones: identification of patterns using thin layer chromatography. - Lichenologist 24(4): 383-397. [RLL List # 149 / Rec.# 11411]
    Keywords: CHLOROXANTHONES/ XANTHONES
    Abstract: 2 fig. 5 tab. [Provides supplementary TLC techniques for the identification of chloroxanthones.]
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  • Kümmerling, H/ Leuckert, C 1993: Chemische flechtenanalysen VIII. Lepraria lesdainii (Hue) R. C. Harris. - Nova Hedwigia 56(3-4): 483-490. [RLL List # 152 / Rec.# 9630]
    Keywords: EUROPE/ LEPRARIA/ MS-MS ANALYSIS/ TLC
    Abstract: 3 fig. 1 tab. [Analysis by TLC and in some cases mass spectrometry of 21 specimens from central Europe. "The major compound is a triterpene, for which the name 'lesdainin' is proposed. The compound is supposed to be identical with 6Ó-acetoxyhopan-11-ol."]
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  • Kümmerling, H/ Leuckert, C/ Wirth, V 1993: Chemische flechtenanalysen VII. Lepraria lobificans Nyl. - Nova Hedwigia 56(1-2): 211-226. [RLL List # 152 / Rec.# 9627]
    Keywords: CHEMOSYNDROMES/ CHROMATOGRAM SPECTRAL PHOTOMETRY/ EUROPE/ LEPRARIA/ MS-MS ANALYSIS/ TLC
    Abstract: 1 fig. 2 tab. [Chemical analysis (by TLC, mass spectrometry and/or chromatogram spectral photometry) of 362 specimens of Lepraria lobificans, mostly from central Europe. This species produces the stictic acid-constictic acid chemosyndrome, in addition to zeorin, atranorin and a number of minor compounds. Includes partial synonymy, and a tabular presentation of the differences between L. lobificans and L. incana, which are often mistaken for one another.]
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  • Leuckert, C/ Knoph, J-G 1993: Secondary compounds as taxonomic characters in the genus Lecidella (Lecanoraceae, Lecanorales). - In: Feige, GB/Lumbsch, HT (eds.): Phytochemistry and Chemotaxonomy of Lichenized Ascomycetes - A Festschrift in Honour of Siegfried Huneck. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 161-171. [RLL List # 154 / Rec.# 11412]
    Keywords: CHEMOTAXONOMY/ GENERIC CONCEPTS/ LECIDELLA/ XANTHONES
    Abstract: 1 fig. 1 tab. [Discussion of the use of secondary chemistry, especially xanthones, to delimit the genus Lecidella and the species within the genus.]
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  • Poelt, J/ Leuckert, C 1993: Substitution and supplementary addition of secondary products in the evolution of lichenized Ascomycotina. - In: Feige, GB/Lumbsch, HT (eds.): Phytochemistry and Chemotaxonomy of Lichenized Ascomycetes - A Festschrift in Honour of Siegfried Huneck. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 201-215. [RLL List # 154 / Rec.# 14748]
    Keywords: CHEMOTAXONOMY/ CHEMOTYPES/ CORTICAL CHEMISTRY/ CORTICAL PIGMENTS/ EVOLUTION
    Abstract: [Discussion of the taxonomic significance of substitutions and additions to the various secondary substances, especially in the cortex, and including crystalline and amorphous pigments.]
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  • Knoph, J-G/ Leuckert, C 1994: Chemotaxonomic studies in the saxicolous species of the lichen genus Lecidella (Lecanorales, Lecanoraceae) in America. - Nova Hedwigia 59(3-4): 455-508. [RLL List # 159 / Rec.# 10252]
    Keywords: LECANORACEAE/ LECIDEA/ LECIDELLA/ NORTH AMERICA/ SOUTH AMERICA
    Abstract: 13 fig. ["Lecidella, a widespread genus of crustose lichens, includes 19 saxicolous species in America. These are recorded, and details of chemistry, ecology and biogeography are presented. The American distribution of most species and their chemotypes is mapped. A key for the determination of the species is provided." New: Lecidella herteliana sp. nov. (Bolivia, Venezuela)]
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  • Kümmerling, H/ Leuckert, C/ Wirth, V 1994: Chemische Flechtenanalysen IX. Lecanactis latebrarum (Ach.) Arnold. - Nova Hedwigia 58(3-4): 437-446. [RLL List # 156 / Rec.# 9628]
    Keywords: CHEMISTRY/ LECANACTIS
    Abstract: 2 fig. 1 tab. [Analysis of 51 specimens, mostly from central Europe.]
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  • Leuckert, C/ Kümmerling, H 1994: Chemotaxonomie der Gattung Lepraria in Mitteleuropa. - Aktuelle Lichenologische Mitteilungen 5: 13-15. [RLL List # 154 / Rec.# 11409]
    Keywords: EUROPE/ LEPRARIA/ LEPROLOMA
    Abstract: [An abstract of a paper presented at "Festkolloquium - Siegfried Huneck."]
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  • Knerr, R/ Leuckert, C 1995: Bemerkenswerte Flechtenstandorte im Umfeld des NSG Dubrow bei Gross Köris. - Naturschutz und Landschaftspflege in Brandenburg 4: 19-25. [RLL List # 165 / Rec.# 10236]
    Keywords: AIR POLLUTION/ GERMANY/ RED LIST/ THREATENED
    Abstract: 5 fig. 2 tab.
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  • Knoph, J-G/ Leuckert, C/ Hertel, H 1995: Chemotypes and distribution patterns of saxicolous species of Lecidella (Lecanoraceae, Lecanorales). - Cryptogamic Botany 5(1): 45-54. [RLL List # 158 / Rec.# 10251]
    Keywords: CHEMOTYPES/ LECANORACEAE/ LECIDELLA/ XANTHONES
    Abstract: 14 fig. 1 tab. ["The genus is chemically mainly characterized by the abundant occurrence of chlorinated xanthones. Distribution patterns of species and their chemotypes are discussed."]
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  • Kümmerling, H/ Leuckert, C/ Wirth, V 1995: Chemische Flechtenanalysen X. Lepraria rigidula (B. de Lesd.) Tønsberg. - Nova Hedwigia 60(1-2): 233-240. [RLL List # 160 / Rec.# 9629]
    Keywords: FATTY ACIDS/ LEPRARIA/ NEPHROSTERANIC
    Abstract: 1 fig. [The major substances in this species are atranorin and the fatty acid nephrosteranic acid. The species is newly reported for southern Europe, Turkey, and Morocco.]
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  • Kümmerling, H/ Leuckert, C/ Wirth, V 1995: Chemische Flechtenanalysen XI. Lepraria jackii Tønsberg. - Nova Hedwigia 60(3-4): 457-465. [RLL List # 160 / Rec.# 9631]
    Keywords: FATTY ACIDS/ JACKINIC ACID/ LEPRARIA
    Abstract: 1 fig. [Major substances are atranorin and the fatty acids jackinic acid and/or roccellic acid.]
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  • Leuckert, C/ Kümmerling, H/ Wirth, V 1995: Chemotaxonomy of Lepraria Ach. and Leproloma Nyl. ex Crombie, with particular reference to Central Europe. - In: Farkas, EE/Lücking, R/Wirth, V (eds.): Scripta Lichenologica - Lichenological Papers Dedicated to Antonín Vezda. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 245-259. [RLL List # 161 / Rec.# 11408]
    Keywords: CHEMOTAXONOMY/ EUROPE/ LEPRARIA/ LEPROLOMA
    Abstract: 1 fig. 2 tab. [Presents data from the analysis of over 2500 specimens of Lepraria (15 spp.) and Leproloma (3 spp.). New: Lepraria nylanderiana sp. nov. (Italy and central Europe), L. cacuminum (A. Massal.) comb. nov.]
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  • Poelt, J/ Leuckert, C/ Roux, C 1995: Die Arten der Lecanora dispersa-Gruppe (Lichenes, Lecanoraceae) auf kalkreichen Gesteinen im Bereich der Ostalpen - Eine Vorstudie. - In: Farkas, EE/Lücking, R/Wirth, V (eds.): Scripta Lichenologica - Lichenological Papers Dedicated to Antonín Vezda. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 289-333. [RLL List # 161 / Rec.# 14744]
    Keywords: CHEMOTAXONOMY/ LECANORA/ XANTHONES
    Abstract: 9 fig. [Treatment of eleven species, with details on morphology/anatomy, chemistry, ecology, and a key for identification. New: Lecanora agardhiana subsp. sapaudica var. lecidella (Poelt) Leuckert & Poelt comb. nov., L. eurycarpa sp. nov. (Austria, Switzerland), L. turbinata Poelt & Leuckert sp. nov. (Austria).]
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  • Leuckert, C/ Blanz, P 1996: Josef Poelt. 1924-1995. Ein Nachruf. - Nova Hedwigia 62: 5pp.(unnumbered). [RLL List # 165 / Rec.# 11401]
    Keywords: HISTORY/ OBITUARY/ POELT
    Abstract: 1 photo
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  • Leuckert, C 1996: Josef Poelt (1924-1995). - Verhandlungen des Botanischen Vereins von Berlin und Brandenburg 129: 307-309. [RLL List # 169 / Rec.# 11436]
    Keywords: OBITUARY/ POELT
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  • Knoph, J-G/ Leuckert, C 1997: Chemotypes and distribution patterns of the non-saxicolous species of Lecidella (Lecanoraceae, Lecanorales). - In: Türk, R/Zorer, R (eds.): Progress and Problems in Lichenology in the Nineties. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 129-134. [RLL List # 170 / Rec.# 10242]
    Keywords: BIOGEOGRAPHY/ CHLORINATED XANTHONES/ LECIDELLA/ XANTHONES
    Abstract: 1 fig. 3 tab. [New: Lecidella aeruginea (H. G. Falk) comb. nov., L. leprothalla (Zahlbr.) comb. nov., L. sendaiensis (Zahlbr.) comb. nov., L. tumidula (A. Massal.) comb. nov., L. xylophila (Th. Fr.) comb. nov.]
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  • Knoph, J-G/ Leuckert, C/ Rittner, W 1997: Chemie und Verbreitung von Lecidella scabra (Taylor) Hertel & Leuck. - In: Kappen, L (ed.): New Species and Novel Aspects in Ecology and Physiology of Lichens. In Honour of O. L. Lange. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 33-46. [RLL List # 169 / Rec.# 10241]
    Keywords: ARTHOTHELIN/ ASEMONE/ CHEMOTYPES/ CHLORINATED XANTHONES/ LECIDELLA/ XANTHONES
    Abstract: 1 tab. [Distribution and chemistry of five chemotypes.]
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  • Knoph, J-G/ Garnitz, R/ Leuckert, C 1999: Two new corticolous species of the genus Lecidella (Lecanoraceae, Lecanorales, lichenized Ascomycotina). - Mycotaxon 71: 163-168. [RLL List # 176 / Rec.# 10240]
    Keywords: LECIDELLA/ NEW ZEALAND/ PHILIPPINES/ URUGUAY
    Abstract: [New: Lecidella aptrootii Knoph & Garnitz sp. nov. (Philippines), L. commutata Knoph & Leuckert sp. nov. (New Zealand, Uruguay).]
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  • Knoph, J-G/ Leuckert, C 1999: Proposal to conserve the name Lecidea euphorea (lichenised Ascomycetes) with a conserved type. - Taxon 48(3): 567-568. [RLL List # 176 / Rec.# 10243]
    Keywords: LECIDEA/ LECIDELLA/ NOMENCLATURAL CONSERVATION
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  • Knoph, J-G/ Leuckert, C 1999: Proposal to conserve the name Lecidea pulveracea against Lepra cyanescens (lichenised Ascomycotina, Lecanorales). - Taxon 48(4): 823-824. [RLL List # 177 / Rec.# 10244]
    Keywords: NOMENCLATURAL CONSERVATION/ NOMENCLATURE
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  • Leuckert, C/ Rux, K-D 1999: Das Trockenrasengebiet im Grunewald Jagen 87 - ein bemerkenswerter Standort für Erdflechten in Berlin. - Verhandlungen des Botanischen Vereins von Berlin und Brandenburg 132: 331-339. [RLL List # 185 / Rec.# 22557]
    Keywords: GERMANY/ HUMAN IMPACT/ RECOVERY/ TERRICOLOUS LICHENS
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  • Knoph, J-G/ Leuckert, C 2000: Chemotaxonomische Studien in der Gattung Lecidella (Lecanorales, Lecanoraceae) III. Die gesteinsbewohnenden Arten mit farblosem Hypothecium unter besonderer Berücksichtigung von europäischem Material [Chemotaxonomic studies in the genus Lecidella (Lecanorales, Lecanoraceae) III. The saxicolous species with a colourless hypothecium with special emphasis on European specimens]. - Herzogia 14: 1-26. [RLL List # 180 / Rec.# 21139]
    Keywords: CHEMOTAXONOMY/ LECANORA/ LECANORALES/ LECIDELLA
    Abstract: 4 fig. 3 tab. [New: Lecidella aurata sp. nov. (South Africa), L. granulosula (Nyl.) comb. nov., Lecanora formosa (Bagl. & Carestia) comb. nov.]
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  • Baruffo, L/ Tretiach, M/ Zedda, L/ Leuckert, C 2001: Sostanze lichenice: come riconoscerle e perchè. - Notiziario della Società Lichenologica Italiana 14: 9-36. [RLL List # 186 / Rec.# 22998]
    Keywords: CHEMISTRY/ SPOT TESTS/ TLC
    Abstract: 22 fig.
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  • Knoph, J-G/ Leuckert, C 2001: Chemische Flechtenanalysen XII. Frutidella caesioatra (Schaer.) Kalb. - Nova Hedwigia 72(3-4): 499-502. [RLL List # 187 / Rec.# 23192]
    Keywords: CHEMISTRY/ FRUTIDELLA/ LECIDEA
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  • Leuckert, C/ Hertel, H 2003: On the Lecidea atrobrunnea complex (Lecanorales, Lecideaceae) in the Americas. I. Introduction and chemistry. - In: Jensen, M (ed.): Lichenological Contributions in Honour of G.B. Feige. Bibliotheca Lichenologica, J. Cramer, Berlin, Stuttgart, pp. 13-31. [RLL List # 191 / Rec.# 24287]
    Keywords: CHEMISTRY/ CHEMOSYNDROMES/ CHEMOTYPES/ LECIDEA/ NORTH AMERICA
    Abstract: 5 fig. [Chemical study of 860 North American specimens yields 15 different chemotypes.]
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  • Knoph, J-G/ Leuckert, C 2004: Lecidella. - In: Nash, TH, III/Ryan, BD/Diederich, P/Gries, C/Bungartz, F (eds.): Lichen Flora of the Greater Sonoran Desert Region, Vol. 2. Lichens Unlimited, Arizona State University, Tempe, Arizona, pp. 309-320. [RLL List # 196 / Rec.# 25919]
    Keywords: LECIDELLA/ SONORAN DESERT
    Abstract: [Treatment of 18 species. New: Lecidella chiricahuana sp. nov. (Baja California, Arizona), L. nashiana sp. nov. (Arizona).]
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  • Leuckert, C/ Wirth, V/ Kümmerling, H/ Heklau, M 2004: Chemical lichen analyses XIV. Lepraria nivalis J. R. Laundon and Lepraria flavescens Cl. Roux & Tonsberg. - In: Döbbeler, P/Rambold, G (eds.): Contributions to Lichenology. Festschrift in Honour of Hannes Hertel. Bibliotheca Lichenologica, J. Cramer in der Gebrüder Borntraeger, Berlin, Stuttgart, pp. 393-407. [RLL List # 194 / Rec.# 25225]
    Keywords: CHEMISTRY/ CHROMONES/ FLAVESCIN/ LEPRARIA/ SORDIDONE
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  • Sipman, H/ Leuckert, C/ Otte, V/ Knoph, J-G/ Rux, K-D 2004: Die Flechten in Willdenows "Florae Berolinensis Prodromus" und ihr Vorkommen im heutigen Berlin [The lichen species in the "Florae Berlinensis Prodromus" by Willdenow and their occurrence nowadays in Berlin]. - Feddes Repertorium 115(1-2): 121-133. [RLL List # 195 / Rec.# 25700]
    Keywords: AIR POLLUTION/ BERLIN/ LITERATURE/ REINVASION/ WILLDENOW
    Abstract: [Of the species reported from Berlin in 1787, 38 had disappeared by 1991. Improved air quality since then has resulted in reappearance of 11 species.]
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    Number of hits shown/total: 70/70.
    Number of records in database: 41424.
    Current date: 2019.08.17.OK