TY - JOUR A1 - Ale-Agha, Nosratollah A1 - Bolay, Adrien A1 - Braun, Uwe A1 - Jage, Horst A1 - Kummer, Volker A1 - Lebeda, Ales A1 - Piatek, Marcin A1 - Shin, Hyeon-Dong A1 - Zimmermannova-Pastircakova, Katarina T1 - Erysiphe catalpae and E. elevata in Europe Y1 - 2004 ER - TY - JOUR A1 - Bolay, Adrien A1 - Braun, Uwe A1 - Delhey, Rolf A1 - Kummer, Volker A1 - Piatek, Marcin A1 - Wolczanska, Agata T1 - Erysiphe deutziae : a new epidemic spread in Europe N2 - Erysiphe deutziae (Bunkina) U. Braun & S. Takam. is powdery mildew fungus that is currently spreading in Europe. The anamorph of this species has been found in France, Germany, Poland and Switzerland on Deutzia sp. (cult.), Deutzia x magnifica (Lemoine) Rehder and Deutzia scabra Thunb. The morphology, taxonomy and worldwide distribution of Erysiphe deutziae are described, illustrated and discussed Y1 - 2005 ER - TY - JOUR A1 - Bolay, Adrien A1 - Braun, Uwe A1 - Delhey, Rolf A1 - Kummer, Volker A1 - Piatek, Marcin A1 - Wolczanska, Agata T1 - Erysiphe deutziae - a new epidemic spread in Europe N2 - Erysiphe deutziae (Bunkina) U. Braun & S. Takam. is powdery mildew fungus that is currently spreading in Europe. The anamorph of this species has been found in France, Germany, Poland and Switzerland on Deutzia sp. (cult.), Deutzia x magnifica (Lemoine) Rehder and Deutzia scabra Thunb. The morphology, taxonomy and worldwide distribution of Erysiphe deutziae are described, illustrated and discussed Y1 - 2005 ER - TY - BOOK A1 - Ale-Agha, Nosratollah A1 - Boyle, H. A1 - Braun, Uwe A1 - Butin, H. A1 - Jage, Horst A1 - Kummer, Volker A1 - Shin, H. T1 - Taxonomy, host range and distribution of some powdery mildew fungi (Erysiphales) N2 - Oidium pedaliacearum sp. nov. (; O. sesami, nom. inval.) and Podosphaera macrospora comb. et stat. nov. (; Sphaerotheca alpina f. macrospora) are introduced, and the taxonomy and distribution of Erysiphe celosiae is discussed. New host species and new collections of Erysiphe cruciferarum (on Cleome hassleriana), E. flexuosa (on Aesculus hippocastanum), E. hedwigii (on Viburnum carlesii), E. heraclei (on Tinguarra montana), E. cf. macleayae (on Macleaya cordata), E. prunastri (on Prunus cerasifera), E. sedi (on Sedum aff. spectabilis), E. trifolii (on Trigonella caerulea), Golovinomyces cichoracearum (on Argyranthemum pinnatifidum subsp. succulentum), G. cf. hydrophyllacearum (on Nemophila menziesii), G. orontii (on Nolana spp.), G. cf. orontii (on Tiarella cordifolia), Neoerysiphe cumminsiana (on Bidens cf. ferulifolia), Oidium clitoriae (on Clitoria ternatea), O. cf. hortensiae (on Philadelphus coronarius), O. pedilanthi (on Pedilanthus tithymaloides), Oidium (Pseudoidium) sp. (on Utricularia alpina), Podosphaera sp. (on Bergia capensis), Sawadaea bicornis (on Acer platanoides) and S. tulasnei (on Acer ginnala and A. tatarica) are recorded from France, Germany, Greece and Mexico. Y1 - 2008 ER - TY - BOOK A1 - Braun, Uwe A1 - Jage, Horst A1 - Kummer, Volker A1 - Zimmermann, Holger T1 - Podosphaera cf. pruinosa on Rhus hirta in Germany N2 - The introduction of a new powdery mildew disease on Rhus hirta in various parts of Germany (Brandenburg, Rhine- Westphalia, Sachsen-Anhalt and Saxony) is reported. The anamorph found on this host agrees well with the North American Podosphaera pruinosa. Although the teleomorph has not yet been found in Germany and a molecular study has not yet been possible due to the lack of fresh North American material for a comparison, there is little doubt that the European outbreak of the Rhus powdery mildew disease may be referred to as Podosphaera pruinosa. Morphology, taxonomy and distribution of Podosphaera species on Rhus and other hosts of the Anacardiaceae are discussed in detail. Y1 - 2008 ER - TY - BOOK A1 - Braun, Uwe A1 - Ale-Agha, Nosratollah A1 - Bolay, Adrien A1 - Boyle, H. A1 - Brielmaier-Liebetanz, U. A1 - Emgenbroich, D. A1 - Kruse, J. A1 - Kummer, Volker T1 - New records of powdery mildew fungi (Erysiphaceae) N2 - The conidial stage and chasmothecia of Golovinomyces orontii have been found in Germany on cultivated Limnanthes douglasii. A powdery mildew anamorph found in the Netherlands on Malva alcea agrees morphologically with the Oidium of the latter species as well. Golovinomyces sp. (anamorph) on Parthenium integrifolium is described and discussed. Erysiphe sp. has been found in Germany on Acer opalus, and E. magnifica is recorded from Germany and Switzerland on Magnolia spp. Oidium passiflorae is new to Switzerland. An Oidium morphologically agreeing with the anamorph of Podosphaera aphanis has recently been collected on Exacum macranthum cultivated in a greenhouse, and conidiophores and conidia of a species of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae (P. fusca complex) on Phlox paniculata and Polemonium caeruleum have been found in Germany. Y1 - 2009 ER - TY - JOUR A1 - Braun, Uwe A1 - Kummer, Volker A1 - Xu, B. T1 - Taxonomy and nomenclature of powdery mildew fungi : erysiphe asclepiadis, E. robiniicola and Golovinomyces caulicola N2 - The new species Erysiphe asclepiadis is described, illustrated and discussed. A new Chinese collection of Erysiphe robiniicola has recently been found that can be used to elucidate and discuss the confused taxonomy and nomenclature of this species and other taxa of Erysiphe s. lat. on Robinia spp. Based on a re-examination of type material in connection with the data given in the protologue, it can be shown that Capnodium lygodesmiae must be reduced to synonymy with Ampelomyces quisqualis. The confusion surrounding the name C. lygodesmiae, caused by the occurrence of the hyperparasite A. quisqualis on a powdery mildew fungus with abundant chasmothecia, is discussed in detail. The new combination, Golovinomyces caulicola (; Spolverinia caulicola), is proposed for the powdery mildew that serves as host of C. lygodesmiae. Y1 - 2009 ER - TY - JOUR A1 - Blankenstein, David A1 - Korneffel, Peter A1 - Borchart de Moreno, Christiana A1 - Schwarz, Ingo A1 - Tkach, Natalia A1 - Braun, Uwe A1 - Röser, Martin A1 - Hoppe, Günter A1 - Andress, Reinhard ED - Ette, Ottmar ED - Knobloch, Eberhard T1 - HiN : Alexander von Humboldt im Netz N2 - -David Blankenstein, Peter Korneffel: Eine Dauerausstellung über Alexander von Humboldt in der Casa Humboldt in Havanna – der Weg zum ersten Alexander von Humboldt-Museum der Welt -Christiana Borchart de Moreno: “El favor de la Corte abre todas las puertas”. Aspectos políticos del viaje americano de Alexander von Humboldt -Ingo Schwarz: Bernhard von Lepels Ode An Humboldt Ein Beitrag zum Theodor-Fontane-Jahr 2019 -Natalia Tkach, Uwe Braun, Martin Röser: Alexander von Humboldts und Aimé Bonplands Pflanzen im Herbarium der Universität Halle-Wittenberg -Günter Hoppe: Alexander von Humboldts Einstellung zum Sammeln(mit einer Einführung von Carmen Götz und Ingo Schwarz: Günter Hoppe zum 100. Geburtstag am 17. Juni 2019) -Reinhard Andress: Addendum: a second Poem by Eduard Dorsch on the occasion of Humboldt’s 100th birthday T3 - HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies - XX.2019, 39 Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-438913 SN - 2568-3543 SN - 1617-5239 VL - XX IS - 39 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Tkach, Natalia A1 - Braun, Uwe A1 - Röser, Martin T1 - Alexander von Humboldts und Aimé Bonplands Pflanzen im Herbarium der Universität Halle-Wittenberg JF - HiN : Alexander von Humboldt im Netz ; international review for Humboldtian studies N2 - Die Pflanzensammlung (Herbarium) der Universität Halle-Wittenberg enthält eine beträchtliche Anzahl von Pflanzenexemplaren, die von Alexander von Humboldt und Aimé Bonpland während ihrer amerikanischen Reise (1799–1804) gesammelt wurden. Wir erläutern die wissenschaftliche Bedeutung der Herbarbelege und wie sie ihren Weg nach Halle fanden. N2 - The plant collection (herbarium) of the University Halle-Wittenberg harbors a considerable number of plant specimens that were collected by Alexander von Humboldt und Aimé Bonpland during their American journey (1799–1804). We discuss the scientific significance of the specimens and how they made their way to Halle. N2 - La colección de plantas (herbario) de la Universidad de Halle-Wittenberg contiene un número considerable de especímenes de plantas recolectadas por Alexander von Humboldt y Aimé Bonpland durante su viaje a América (1799–1804). Discutimos la importancia científica de los especímenes y cómo se dirigen a Halle. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-442552 SN - 2568-3543 SN - 1617-5239 VL - XX IS - 39 SP - 45 EP - 52 PB - Universitätsverlag Potsdam CY - Potsdam ER -