TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg III
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Kümmerling, Heidi
A1  - Rätzel, Stefan
A1  - Otte, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg : eine Anregung zur floristischen Arbeit
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Bitzer, Jens
A1  - Laessøe, Thomas
A1  - Fournier, Jaques
A1  - Kummer, Volker
A1  - Decock, Cony
A1  - Tichy, Hans-Volker
A1  - Piepenbring, Meike
A1  - Persoh, Derek
A1  - Stadler, Marc
T1  - Affinities of Phylacia and the daldinioid Xylariaceae, inferred from chemotypes of cultures and ribosomal DNA sequences
N2  - A chemotaxonomic evaluation using hplc profiling was undertaken to resolve the infrageneric and intergeneric affinities of over 150 strains of Xylariaceae. Daldinia placentiformis, Hypoxylon nicaraguense, H. polyporus, and Phylacia sagrana were found to contain 8-methoxy-1-naphthol, which is apparently absent in Annulohypoxylon, Hypoxylon, and related genera with bipartite stromata. D. placentiformis and other species of Daldinia and Entonaema produced this naphthol, 5-hydroxy-2-methylchromone, isosclerone derivatives, and 'AB-5046' phytotoxins. Phylacia sagrana differed from most Daldinia spp., except for D. caldariorum, by producing eutypine derivatives in addition to the above compounds. indolylquinones were observed in H. nicaraguense and H. polyporus. Isosclerones were also identified in the A. multiforme complex, but Hypoxylon and other Annulohypoxylon and most Hypoxylon spp. studied Annulohypoxylon spp. contained S-methylmellein as the major metabolite of their cultures. Based on the occurrence of the above metabolites, further mellein-type dihydroisocoumarins, teleomorphic and anamorphic Xylariaceae with Nodulisporium-like anamorphs ('Hypoxyloideae') were divided into various chemotypes. A comparison of their 5.8S/ ITS nuc-rDNA sequences agreed in some important aspects with the above results: H. nicaraguense and H. polyporus appeared basal to a clade comprising Daldinia, Entonaema, and Ph. sagrana. The latter species appeared allied to D. caldariorum, but was distantly related to Pyrenomyxa morganii and Hypoxylon s. str. (C) 2007 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
Y1  - 2008
SN  - 0953-7562
ER  - 
TY  - JOUR
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - Otte, Volker
A1  - Sipman, Harri J. M
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VII
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - De Bruyn, Uwe
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VI
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Sipman, Harri J. M.
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg V
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Shivas, Roger G.
A1  - Thines, Marco
T1  - The first smut fungus, Thecaphora anthemidis sp nov (Glomosporiaceae), described from Anthemis (Asteraceae)
JF  - MycoKeys
N2  - There are 63 known species of Thecaphora (Glomosporiaceae, Ustilaginomycotina), a third of which occur on Asteraceae. These smut fungi produce yellowish-brown to reddish-brown masses of spore balls in specific, mostly regenerative, plant organs. A species of Thecaphora was collected in the flower heads of Anthemis chia (Anthemideae, Asteraceae) on Rhodes Island, Greece, in 2015 and 2017, which represents the first smut record of a smut fungus on a host plant species in this tribe. Based on its distinctive morphology, host species and genetic divergence, this species is described as Thecaphora anthemidis sp. nov. Molecular barcodes of the ITS region are provided for this and several other species of Thecaphora. A phylogenetic and morphological comparison to closely related species showed that Th. anthemidis differed from other species of Thecaphora. Thecaphora anthemidis produced loose spore balls in the flower heads and peduncles of Anthemis chia unlike other flower-infecting species.
KW  - Glomosporiaceae
KW  - host specificity
KW  - internal transcribed spacer
KW  - molecular phylogenetics
KW  - smut fungi
Y1  - 2018
U6  - https://doi.org/10.3897/mycokeys.41.28454
SN  - 1314-4057
SN  - 1314-4049
IS  - 41
SP  - 39
EP  - 50
PB  - Pensoft Publ.
CY  - Sofia
ER  - 
TY  - JOUR
A1  - Goerg, Marlena
A1  - Ploch, Sebastian
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Runge, Fabian
A1  - Choi, Young-Joon
A1  - Thines, Marco
T1  - Revision of Plasmopara (Oomycota, Peronosporales) parasitic to Impatiens
JF  - Mycological progress : international journal of the German Mycological Society
N2  - The oomycete Plasmopara obducens was first described on wild Impatiens noli-tangere in Germany in 1877. About 125 years later the first occurrence of P. obducens on cultivated I. walleriana in the United Kingdom was reported, and a worldwide epidemic followed. Although this pathogen is a major threat for ornamental busy lizzy, the identity of the pathogen remained unconfirmed and the high host specificity observed for the genus Plasmopara cast doubts regarding its determination as P. obducens. In this study, using multigene phylogenies and morphological investigation, it is revealed that P. obducens on I. noli-tangere is not the conspecific with the pathogen affecting I. walleriana and another ornamental balsam, I. balsamina. As a consequence, the new names P. destructor and P. velutina are introduced for the pathogens of I. walleriana and I. balsamina, respectively.
KW  - Busy lizzy
KW  - Downy mildew
KW  - Horticulture
KW  - Lady slipper balsam
KW  - New species
KW  - Peronosporaceae
KW  - Taxonomy
KW  - Touch-me-not
Y1  - 2017
U6  - https://doi.org/10.1007/s11557-017-1316-y
SN  - 1617-416X
SN  - 1861-8952
VL  - 16
SP  - 791
EP  - 799
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Scherber, Christoph
A1  - Eisenhauer, Nico
A1  - Weisser, Wolfgang W.
A1  - Schmid, Bernhard
A1  - Voigt, Winfried
A1  - Fischer, Markus
A1  - Schukze, Ernst-Detlef
A1  - Roscher, Christiane
A1  - Weigelt, Alexandra
A1  - Allan, Eric
A1  - Beßler, Holger
A1  - Bonkowski, Michael
A1  - Buchmann, Nina
A1  - Buscot, François
A1  - Clement, Lars W.
A1  - Ebeling, Anne
A1  - Engels, Christof
A1  - Halle, Stefan
A1  - Kertscher, Ilona
A1  - Klein, Alexandra Maria
A1  - Koller, Robert
A1  - König, Stephan
A1  - Kowalski, Esther
A1  - Kummer, Volker
A1  - Kuu, Annely
A1  - Lange, Markus
A1  - Lauterbach, Dirk
T1  - Bottom-up effects of plant diversity on multitrophic interactions in a biodiversity experiment
Y1  - 2010
UR  - http://www.nature.com/nature/journal/v468/n7323/full/nature09492.html
SN  - 0028-0836
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 2. Moorflanzen ; Teil 1
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 08.10.06 im Groß Mehßower Tannenbusch
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Raetzel, Stefan
A1  - Kummer, Volker
T1  - Die Erforschung der in Brandenburg vorkommenden Kryptogamen nach 1945 (Moose, Pilze)
Y1  - 2010
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Hanelt, Dorothea
A1  - Hanelt, Peter
A1  - Jage, Horst
A1  - John, Heino
A1  - Richter, Heidrun
A1  - Richter, Udo
A1  - Schultz, Burkhard
T1  - Phyllactinia hippophaës (Erysiphales) rediscovered in Germany
N2  - The Erysiphales species Phyllactinia hippophaës Thuem. ex S. Blumer was found for the fi rst time on cultivated Sea Buckthorn (Hippophaë rhamnoides L.) near Großkayna (Saxony-Anhalt) in October 2009. This fungus was considered to be extinct in Germany. Intensive searching in Saxony-Anhalt and the Potsdam area (Brandenburg) yielded many additional records, most of them from former brown coal mining areas or in Sea Buckthorn plantations.
Y1  - 2010
SN  - 1641-8180
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 09.10.05 in der Umgebung der Försterei Rochau
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Der Lübbener Rudolf Marloth (1855-1931) als Botaniker in Südafrika - eine Lebensskizze
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 36. Brandenburgischen Botanikertagung in Hohenspringe/Flaeming
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Buhr, Christoph
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes II
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Jage, Horst
A1  - Kummer, Volker
A1  - Illig, Hubert
A1  - Petrick, Wolfgang
T1  - Beitrag zur Kenntnis phytoparasitischer Kleinpilze in der Niederlausitz (Land Brandenburg) : Teil 2
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 37. Brandenburgischen Botanikertagung in Neuendorf bei Oranienburg
Y1  - 2007
SN  - 0945-4292
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 10.10.2004 im Bereich des Drehnaer Weinberges
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 35. Brandenburgischen Botanikertagung in Storkow
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Richter, Torsten
A1  - Schwik, Jürgen
T1  - Wegelina grumsiniana comb. nov. (Ascomycetes, Calosphaeriales) : ein Pyrenomycet auf der Porenschicht faulender Zunderschwämme (Fomes fomentarius)
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zusammenstellung lokaler Pilzliteratur 2000 - 2003
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Luschka, Norbert
A1  - Otto, Peter
T1  - Aufruf für neue Serien zur Kartierung der Pilze Ostdeutschlands
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein Vorkommen von Draba muralis L. im Potsdamer Stadtgebiet
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  - JOUR
A1  - Wolters, Steffen
A1  - Bittmann, Felix
A1  - Kummer, Volker
T1  - The first subfossil records of Urtica kioviensis Rogow. and their consequences for palaeoecological interpretations
N2  - Among plant remains from Mesolithic layers dating from 9249 to 7779 B.C. at the excavation site of Friesack IV in north-eastern Germany, nutlets of Urtica kioviensis were identified. Morphological studies have shown that they clearly differed from all other European Urtica species investigated. In contrast, pollen morphological investigations revealed only slight differences between the central European Urtica species, which could hardly have been noticed during routine or normal pollen analyses. The records of U. kioviensis nutlets are the first subfossil finds reported and prove the indigenous status of this taxon in north-eastern Germany. The records are discussed in the context of the overall species spectrum of the Mesolithic layers and consequences for the interpretation of pollen analytical studies concerning human impact are pointed out
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  - JOUR
A1  - Kummer, Volker
T1  - Vom Seidenbau in Krausnick
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Dr. Dieter Benkert zum 70. Geburtstag
Y1  - 2004
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 34. Brandenburgischen Botanikertagung in Ortrand
Y1  - 2004
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 05.10.02 bei Prierow
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald) ; Teil 2
Y1  - 2004
ER  - 
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  - Grosse-Brauckmann, Helga
A1  - Kummer, Volker
T1  - Fünf bemerkenswerte Funde corticioider Pilze aus Deutschland
Y1  - 2004
UR  - http://www3.interscience.wiley.com/cgi-bin/fulltext/108563946/PDFSTART
SN  - 0014-8962
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 06.10.02 bei Stöbritz-Willmersdorf sowie östlich von Egsdorf
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald) ; Teil 1
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 1. Wasserpflanzen ; Teil 2
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes
Y1  - 2003
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Jage, Horst
T1  - Bemerkenswerte Pilzfunde auf der 33. Brandenburgischen Botanikertagung in Perleberg
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kasparz, Sven
A1  - Kummer, Volker
T1  - Exkursionsbericht "Exkursion zu den Lübbener Pfaffenbergen und Hartmannsdorfer Wiesen" am 20.07.2002
Y1  - 2003
SN  - 0724-3111 -
ER  - 
TY  - GEN
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Shivas, Roger G.
A1  - Thines, Marco
T1  - The first smut fungus, Thecaphora anthemidis sp. nov. (Glomosporiaceae), described from Anthemis (Asteraceae)
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - There are 63 known species of Thecaphora (Glomosporiaceae, Ustilaginomycotina), a third of which occur on Asteraceae. These smut fungi produce yellowish-brown to reddish-brown masses of spore balls in specific, mostly regenerative, plant organs. A species of Thecaphora was collected in the flower heads of Anthemis chia (Anthemideae, Asteraceae) on Rhodes Island, Greece, in 2015 and 2017, which represents the first smut record of a smut fungus on a host plant species in this tribe. Based on its distinctive morphology, host species and genetic divergence, this species is described as Thecaphora anthemidis sp. nov. Molecular barcodes of the ITS region are provided for this and several other species of Thecaphora. A phylogenetic and morphological comparison to closely related species showed that Th. anthemidis differed from other species of Thecaphora. Thecaphora anthemidis produced loose spore balls in the flower heads and peduncles of Anthemis chia unlike other flower-infecting species.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 995 
KW  - Glomosporiaceae
KW  - host specificity
KW  - internal transcribed spacer
KW  - molecular phylogenetics
KW  - smut fungi
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-446377
SN  - 1866-8372
SP  - 39
EP  - 50
ER  - 
TY  - JOUR
A1  - Bubner, Ben
A1  - Buchheit, Ramona
A1  - Friedrich, Frank
A1  - Kummer, Volker
A1  - Scholler, Markus
T1  - Species identification of European forest pathogens of the genus Milesina (Pucciniales) using urediniospore morphology and molecular barcoding including M. woodwardiana sp. nov.
JF  - MycoKeys
N2  - Species of rust fungi of the genus Milesina (Pucciiastraceae, Pucciniales) are distributed mainly in northern temperate regions. They host-alternate between needles of fir (Abies spp.) and fronds of ferns (species of Polypodiales). Milesina species are distinguished based on host taxonomy and urediniospore morphology. In this study, 12 species of Milesina from Europe were revised. Specimens were examined by light and scanning electron microscopy for urediniospore morphology with a focus on visualising germ pores (number, size and position) and echinulation. In addition, barcode loci (ITS, nad6, 28S) were used for species delimitation and for molecular phylogenetic analyses. Barcodes of 72 Milesina specimens were provided, including 11 of the 12 species. Whereas urediniospore morphology features were sufficient to distinguish all 12 Milesina species except for 2 (M. blechni and M. kriegeriana), ITS sequences separated only 4 of 11 species. Sequencing with 28S and nad6 did not improve species resolution. Phylogenetic analysis, however, revealed four phylogenetic groups within Milesina that also correlate with specific urediniospore characters (germ pore number and position and echinulation). These groups are proposed as new sections within Milesina (sections Milesina, Vogesiacae M. Scholler & Bubner, sect. nov., Scolopendriorum M. Scholler & Bubner, sect. nov. and Carpaticae M. Scholler & Bubner, sect. nov.). In addition, Milesina woodwardiana Buchheit & M. Scholler, sp. nov. on Woodwardia radicans, a member of the type section Milesina, is newly described. An identification key for European Milesina species, based on urediniospore features, is provided.
KW  - Abies alba
KW  - Polypodiales
KW  - GBOL
KW  - germ pores
KW  - host alternation
KW  - Uredinopsis
KW  - Europe
Y1  - 2019
U6  - https://doi.org/10.3897/mycokeys.48.30350
SN  - 1314-4057
SN  - 1314-4049
IS  - 48
SP  - 1
EP  - 40
PB  - Pensoft Publishers
CY  - Sofia
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Farbenfroh und vergänglich
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Eine botanische Wanderung rund um den Neuendorfer See
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Der Große Burgwall bei Havelberg : ein bemerkenswerter Pilzstandort
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Kommt Plagiothecium undulatum (HEDW) B.S.G. noch in der Niederlausitz vor?
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein Beitrag zur Pilzflora des Görlsdorfer Waldes
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Jentsch, Helmut
T1  - Elodea nuttallii (PLANCH.), St, Johan nun auch in Brandenburg
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Einige interessante Neubürger der Potsdamer Umgebung
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zur Pilzflora des Kienbergs bei Wolsier mit Hinweisen auf die Phanerogamenflora
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen von Asplenium viride HUDS : in Berlin und Brandenburg
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Exkursionsbericht "Neuendorfer Se/Unterspreewald" am 31.08.1996
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Exkursion zum Gollwitzer Havelufer
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : I. Bemerkenswerte und seltene Funde aus dem Unterspreewaldgebiet
Y1  - 1996
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  - JOUR
A1  - Kummer, Volker
T1  - Der Abriß der Neuen Schänke
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zur Wasserpflanzenvegetation des Neuendorfer Sees
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
A1  - Pötsch, Joachim
T1  - Zur Vegetation des Feuchtgebietes Internationaler Bedeutung (FIB) Untere Havel
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
T1  - Zur Verbreitung und Soziologie von S colochloa festucacea L : in Nordostdeutschland und seine Unterscheidung von ähnlichen Gräsern nach vegetativen Merkmalen
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Jentsch, Helmut
A1  - Kummer, Volker
T1  - Floristische Neufunde aus dem Spreewald
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde aus dem nordwestlichen Unterspreewald-Randgebiet
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Botanische Exkursion ins Wolfsbruch bei Alt Töplitz
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bürgert sich Gypsophila perfoliata in Brandenburg ein?
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über einige Adventivpflanzenfunde auf dem Krausnicker Müllplatz
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Einige Aspekte der Pilzflora im Bol'soj Thac-Gebiet (NW-Kaukasus)
N2  - Some aspects of the fungal flora in the Bol'Üoj Tha; area (NW-Caucasus) - During an excursion to the Bol'soj Tha; area in north-western Caucasus in the late summer of 1998 a number of mycological observations were made. 111 macrofungi species (30 ascomycetes, 81 basidiomycetes), 16 myxomycetes and 42 phytoparasitic fungi (15 Erysiphales, 27 Uredinales) were registered. The majority of the recorded macromycetes were decomposers of dead stems and logs of different trees and shrubs, especially of the dominating tree species Fagus orientalis and Abies nordmanniana. Bondarzewia montana, Hericium alpestre and Phellinus hartigii are typical colonisers of old Abies trunks and therefore of special interest. They were recorded several times, especially in the primeval forests of the excursion area. Some of the collected taxa like Daldinia petriniae, Hypoxylon cercidicola, H. liviae, Ophiostoma polyporicola, Pezoloma marchantiae, Ramsbottomia macracantha, Symphyosyria angelicae, Auriporia aurulenta, Flagelloscypha pilatii, Hymenochaete carpatica, Marasmius cf. rhododendrorum and Pellidiscus pallidus are discussed in detail. Some of the recorded taxa are probably new for the western Caucasus and in some cases also for Russia.
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - List of fungi (ascomycetes, basidiomycetes, myxomycetes and phytoparasitic fungi) recorded in the Bol'soj Thac area between the so called "Devils gate" (Acesbok) and the village Novoprohladnoe
N2  - The list contains all the identified fungi collections of the excursion in 1998. In it were also included some records published by OTTO (2001) and few unpublished data of fungi mainly collected by V. Otte after 1998. Unless other information is given, all the fungal collections and their determination were done by the author. Most of the collections are integrated as exsiccata in the herbarium of the author.
Y1  - 2007
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  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 07.10.07 in der Calauer Schweiz bei Cabel
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  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 2. Moorflanzen ; Teil 2
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 12.10.08 im Kasel- Reichwalder Busch bei Reichwalde
Y1  - 2009
SN  - 1432-4199
ER  - 
TY  - JOUR
A1  - Burkart, Michael
A1  - Kummer, Volker
A1  - Fischer, Wolfgang
T1  - Floristische Neu- und Wiederfunde im Gebiet der Unteren Havel
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
T1  - Ein Beitrag zur Pilzflora der Höllenberge bei Langengrassau
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Salzbunge (Samolus valerandi) im Bornimer Schlangenbruch wieder gefunden
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Burkart, Michael
T1  - Scolochloa festucacea (WILLD.) LINK in der Unteren Havelniederung Sachsen-Anhalts
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Usnea filipendula : ein bemerkenswerter Flechtenfund bei Krausnick
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen zu einem Vorkommen des Roten Waldvögeleins bei Falkensee
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen des Sternstäublings (Mycenastrum corium) in der Niederlausitz
Y1  - 1993
ER  - 
TY  - BOOK
A1  - Kummer, Volker
T1  - Notizen zur Pflanzenwelt des NSG "Alter Nuthelauf"
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Krausnicker Schule zu Beginn des 19. Jahrhunderts : ein Beitrag zur Gechichte des Unterspreewaldortes
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Vielstengeliges Sumpfried (Eleocharis multicaulis) am Luchsee gefunden
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über den Amtsgarten zu Krausnick
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Benkert, Dieter
A1  - Kummer, Volker
T1  - Amanita vittadinii in Brandenburg
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Buhr, Christoph
A1  - Kummer, Volker
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes III
N2  - A list of rare or interesting phanerogams from Potsdam and surroundings is presented. Most of them were recorded between 2006 and 2008. In some cases short remarks about the taxonomy, distribution and other details are given. The collections of Geranium purpureum and Parietaria judaica are the first records for Brandenburg. The collections of Agastache foeniculum, Coreopsis lanceolata, Geranium nodosum, Hieracium amplexicaule, Juncus ensifolius, Lactuca virosa, Sedum sarmentosum and Verbena bonariensis are probably the first information about adventive occurences of these species in this Federal State. Viscum album is reported on rare host species: Chaenomelis sp., Quercus spp. and Rosa hybrids.
Y1  - 2010
SN  - 0945-4292
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 38. Brandenburgischen Botanikertagung in Groß Pinnow/Uckermark
Y1  - 2010
SN  - 9454-4292
ER  - 
TY  - JOUR
A1  - Jage, Horst
A1  - Klenke, F.
A1  - Kummer, Volker
T1  - Neufunde und bemerkenswerte Bestätigungen von phytoparasitischen Kleinpilzen in Deutschland - Teil 1 : Erysiphales (Echte Mehltaupilze)
N2  - Members of the Erysiphales are conspicuous phytoparasitic microfungi during the late summer and autumn period. A lot of literature sources were evaluated by BRANDENBURGER & HAGEDORN (2006). They give an overview of the floristic data of the separate Erysiphales-host-combinations in the individual federal states of Germany. Unfortunately, most of the articles published after 2000 and especially many unpublished data assembled since 1970s have not been included. Therefore the present list is a supplementa-tion to BRANDENBURGER & HAGEDORN (2006). A total of 1.994 new records of Erysiphales-host-combinations from all federal states of Germany the Saarland excluded have been listed. Most of them are from Brandenburg, Saxony and Saxony-Anhalt. In contrast to that obvious deficits clearly exist in the federal states of Bremen, Hamburg, Hessen and Mecklenburg-Western Pomerania. Compared to BRANDENBURGER & HAGEDORN (2006) only the first record of the respective Erysiphales-host-combination in the particular federal states of Germany is given. If the last record of an Erysiphales-host-combination is older than 25 years in some cases a new record is also listed. Since 2000 17 Erysiphales taxa have been collected in Germany for the first time. All in all 97 matrices novae especially different cultivated plants are compiled. 49 resp. 59 fungus-host-combinations are new for Europe and Central Europe and furthermore 199 combinations are new for Germany. 54 records are the first exact data for the occurrence of the fungus- host-combination in Germany. These combinations have been listed globally in the literature for Germany until today but without any exact data. A part of the given records offer double infections with other phytoparasitic micro-fungi. These infections have been represented summarily. A list of fungus-host-combinations published in the literature but not clearly recorded for Germany is given.
Y1  - 2010
SN  - 1436-2317
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zusammenstellung lokaler Pilzliteratur 2004 - 2008
Y1  - 2010
SN  - 0232-4598
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen im Cetraria islandica (.L) ACH., dem isländischen Moos, und Cetraria ericetorium OPIZ in Brandenburg unter besonderer Berücksichtigung der Niederlausitz
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Flora und Vegetation im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald)
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Auf der Suche nach der "Blauen Blume"
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Loweomyces fractipes im Unterspreewald gefunden
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beobachtungen zu Pithya cupressina andchloroscypha alutipes
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 03.10.97 zum Nordufer des Sandteiches bei Fürstlich Drehna
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein kurzer Einblick in die Vielfalt unserer heimischen Pilze
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Neue Erkenntnisse über den Ursprung der Krausnicker Kirche und ihre Einordnung in die damalige Kirchenbauentwicklung
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Klopfer, Klaus
T1  - Untersuchungen zur morphologischen Differenzierung von 5 nahe verwandten Sommergerstensorten
Y1  - 1992
ER  - 
TY  - BOOK
A1  - Kummer, Volker
T1  - Historie der Krausnicker Kirche
Y1  - 1992
PB  - Fata-Morgana-Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Lehnhardt, Lothar
A1  - Klopfer, Klaus
T1  - Untersuchungen zur Fremdbesatzproblematik bei 5 Gerstensorten mittels Ährennachkommenschaftsprüfung und Hordeinelektrophorese
Y1  - 1992
ER  -