@article{KruseKummerShivasetal.2018,
  author    = {Kruse, Julia and Kummer, Volker and Shivas, Roger G. and Thines, Marco},
  title     = {The first smut fungus, Thecaphora anthemidis sp nov (Glomosporiaceae), described from Anthemis (Asteraceae)},
  series = {MycoKeys},
  journal   = {MycoKeys},
  number    = {41},
  publisher = {Pensoft Publ.},
  address   = {Sofia},
  issn      = {1314-4057},
  doi       = {10.3897/mycokeys.41.28454},
  pages     = {39 -- 50},
  year      = {2018},
  abstract  = {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.},
  language  = {en}
}
@article{GoergPlochKruseetal.2017,
  author    = {Goerg, Marlena and Ploch, Sebastian and Kruse, Julia and Kummer, Volker and Runge, Fabian and Choi, Young-Joon and Thines, Marco},
  title     = {Revision of Plasmopara (Oomycota, Peronosporales) parasitic to Impatiens},
  series = {Mycological progress : international journal of the German Mycological Society},
  volume    = {16},
  journal   = {Mycological progress : international journal of the German Mycological Society},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1617-416X},
  doi       = {10.1007/s11557-017-1316-y},
  pages     = {791 -- 799},
  year      = {2017},
  abstract  = {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.},
  language  = {en}
}
@article{ScherberEisenhauerWeisseretal.2010,
  author    = {Scherber, Christoph and Eisenhauer, Nico and Weisser, Wolfgang W. and Schmid, Bernhard and Voigt, Winfried and Fischer, Markus and Schukze, Ernst-Detlef and Roscher, Christiane and Weigelt, Alexandra and Allan, Eric and Beßler, Holger and Bonkowski, Michael and Buchmann, Nina and Buscot, Fran{\c{c}}ois and Clement, Lars W. and Ebeling, Anne and Engels, Christof and Halle, Stefan and Kertscher, Ilona and Klein, Alexandra Maria and Koller, Robert and K{\"o}nig, Stephan and Kowalski, Esther and Kummer, Volker and Kuu, Annely and Lange, Markus and Lauterbach, Dirk},
  title     = {Bottom-up effects of plant diversity on multitrophic interactions in a biodiversity experiment},
  issn      = {0028-0836},
  year      = {2010},
  language  = {en}
}
@article{Kummer2007,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pflanzenarten des Spreewaldes : 2. Moorflanzen ; Teil 1},
  year      = {2007},
  language  = {de}
}
@article{Kummer2007,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 08.10.06 im Groß Mehßower Tannenbusch},
  year      = {2007},
  language  = {de}
}
@article{RaetzelKummer2010,
  author    = {Raetzel, Stefan and Kummer, Volker},
  title     = {Die Erforschung der in Brandenburg vorkommenden Kryptogamen nach 1945 (Moose, Pilze)},
  year      = {2010},
  language  = {de}
}
@article{KummerHaneltHaneltetal.2010,
  author    = {Kummer, Volker and Hanelt, Dorothea and Hanelt, Peter and Jage, Horst and John, Heino and Richter, Heidrun and Richter, Udo and Schultz, Burkhard},
  title     = {Phyllactinia hippopha{\"e}s (Erysiphales) rediscovered in Germany},
  issn      = {1641-8180},
  year      = {2010},
  abstract  = {The Erysiphales species Phyllactinia hippopha{\"e}s Thuem. ex S. Blumer was found for the fi rst time on cultivated Sea Buckthorn (Hippopha{\"e} 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.},
  language  = {en}
}
@article{Kummer2006,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 09.10.05 in der Umgebung der F{\"o}rsterei Rochau},
  year      = {2006},
  language  = {de}
}
@article{Kummer2006,
  author    = {Kummer, Volker},
  title     = {Der L{\"u}bbener Rudolf Marloth (1855-1931) als Botaniker in S{\"u}dafrika - eine Lebensskizze},
  year      = {2006},
  language  = {de}
}
@article{Kummer2006,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pilzfunde auf der 36. Brandenburgischen Botanikertagung in Hohenspringe/Flaeming},
  year      = {2006},
  language  = {de}
}
@article{KummerBuhr2006,
  author    = {Kummer, Volker and Buhr, Christoph},
  title     = {Beitrag zur Flora des Potsdamer Stadtgebietes II},
  year      = {2006},
  language  = {de}
}
@article{JageKummerIlligetal.2006,
  author    = {Jage, Horst and Kummer, Volker and Illig, Hubert and Petrick, Wolfgang},
  title     = {Beitrag zur Kenntnis phytoparasitischer Kleinpilze in der Niederlausitz (Land Brandenburg) : Teil 2},
  year      = {2006},
  language  = {de}
}
@article{Kummer2007,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pilzfunde auf der 37. Brandenburgischen Botanikertagung in Neuendorf bei Oranienburg},
  issn      = {0945-4292},
  year      = {2007},
  language  = {de}
}
@article{Kummer2005,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 10.10.2004 im Bereich des Drehnaer Weinberges},
  year      = {2005},
  language  = {de}
}
@article{Kummer2005,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pilzfunde auf der 35. Brandenburgischen Botanikertagung in Storkow},
  year      = {2005},
  language  = {de}
}
@article{KummerRichterSchwik2005,
  author    = {Kummer, Volker and Richter, Torsten and Schwik, J{\"u}rgen},
  title     = {Wegelina grumsiniana comb. nov. (Ascomycetes, Calosphaeriales) : ein Pyrenomycet auf der Porenschicht faulender Zunderschw{\"a}mme (Fomes fomentarius)},
  year      = {2005},
  language  = {de}
}
@article{Kummer2005,
  author    = {Kummer, Volker},
  title     = {Zusammenstellung lokaler Pilzliteratur 2000 - 2003},
  year      = {2005},
  language  = {de}
}
@article{KummerLuschkaOtto2005,
  author    = {Kummer, Volker and Luschka, Norbert and Otto, Peter},
  title     = {Aufruf f{\"u}r neue Serien zur Kartierung der Pilze Ostdeutschlands},
  year      = {2005},
  language  = {de}
}
@article{Kummer2005,
  author    = {Kummer, Volker},
  title     = {Ein Vorkommen von Draba muralis L. im Potsdamer Stadtgebiet},
  year      = {2005},
  language  = {de}
}
@article{BolayBraunDelheyetal.2005,
  author    = {Bolay, Adrien and Braun, Uwe and Delhey, Rolf and Kummer, Volker and Piatek, Marcin and Wolczanska, Agata},
  title     = {Erysiphe deutziae : a new epidemic spread in Europe},
  year      = {2005},
  abstract  = {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},
  language  = {en}
}
@article{WoltersBittmannKummer2005,
  author    = {Wolters, Steffen and Bittmann, Felix and Kummer, Volker},
  title     = {The first subfossil records of Urtica kioviensis Rogow. and their consequences for palaeoecological interpretations},
  year      = {2005},
  abstract  = {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},
  language  = {en}
}
@article{BolayBraunDelheyetal.2005,
  author    = {Bolay, Adrien and Braun, Uwe and Delhey, Rolf and Kummer, Volker and Piatek, Marcin and Wolczanska, Agata},
  title     = {Erysiphe deutziae - a new epidemic spread in Europe},
  year      = {2005},
  abstract  = {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},
  language  = {en}
}
@article{Kummer2004,
  author    = {Kummer, Volker},
  title     = {Vom Seidenbau in Krausnick},
  year      = {2004},
  language  = {de}
}
@article{Kummer2004,
  author    = {Kummer, Volker},
  title     = {Dr. Dieter Benkert zum 70. Geburtstag},
  issn      = {0724-3111 -},
  year      = {2004},
  language  = {de}
}
@article{Kummer2004,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pilzfunde auf der 34. Brandenburgischen Botanikertagung in Ortrand},
  issn      = {0724-3111 -},
  year      = {2004},
  language  = {de}
}
@article{Kummer2004,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 05.10.02 bei Prierow},
  year      = {2004},
  language  = {de}
}
@article{Kummer2004,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosph{\"a}renreservat Spreewald) ; Teil 2},
  year      = {2004},
  language  = {de}
}
@article{AleAghaBolayBraunetal.2004,
  author    = {Ale-Agha, Nosratollah and Bolay, Adrien and Braun, Uwe and Jage, Horst and Kummer, Volker and Lebeda, Ales and Piatek, Marcin and Shin, Hyeon-Dong and Zimmermannova-Pastircakova, Katarina},
  title     = {Erysiphe catalpae and E. elevata in Europe},
  year      = {2004},
  language  = {en}
}
@article{GrosseBrauckmannKummer2004,
  author    = {Grosse-Brauckmann, Helga and Kummer, Volker},
  title     = {F{\"u}nf bemerkenswerte Funde corticioider Pilze aus Deutschland},
  issn      = {0014-8962},
  year      = {2004},
  language  = {de}
}
@article{Kummer2003,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 06.10.02 bei St{\"o}britz-Willmersdorf sowie {\"o}stlich von Egsdorf},
  year      = {2003},
  language  = {de}
}
@article{Kummer2003,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosph{\"a}renreservat Spreewald) ; Teil 1},
  year      = {2003},
  language  = {de}
}
@article{Kummer2003,
  author    = {Kummer, Volker},
  title     = {Bemerkenswerte Pflanzenarten des Spreewaldes : 1. Wasserpflanzen ; Teil 2},
  year      = {2003},
  language  = {de}
}
@article{Kummer2003,
  author    = {Kummer, Volker},
  title     = {Beitrag zur Flora des Potsdamer Stadtgebietes},
  issn      = {0724-3111 -},
  year      = {2003},
  language  = {de}
}
@article{KummerJage2003,
  author    = {Kummer, Volker and Jage, Horst},
  title     = {Bemerkenswerte Pilzfunde auf der 33. Brandenburgischen Botanikertagung in Perleberg},
  year      = {2003},
  language  = {de}
}
@article{KasparzKummer2003,
  author    = {Kasparz, Sven and Kummer, Volker},
  title     = {Exkursionsbericht "Exkursion zu den L{\"u}bbener Pfaffenbergen und Hartmannsdorfer Wiesen" am 20.07.2002},
  issn      = {0724-3111 -},
  year      = {2003},
  language  = {de}
}
@misc{KruseKummerShivasetal.2018,
  author    = {Kruse, Julia and Kummer, Volker and Shivas, Roger G. and Thines, Marco},
  title     = {The first smut fungus, Thecaphora anthemidis sp. nov. (Glomosporiaceae), described from Anthemis (Asteraceae)},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-44637},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-446377},
  pages     = {39 -- 50},
  year      = {2018},
  abstract  = {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.},
  language  = {en}
}
@article{BubnerBuchheitFriedrichetal.2019,
  author    = {Bubner, Ben and Buchheit, Ramona and Friedrich, Frank and Kummer, Volker and Scholler, Markus},
  title     = {Species identification of European forest pathogens of the genus Milesina (Pucciniales) using urediniospore morphology and molecular barcoding including M. woodwardiana sp. nov.},
  series = {MycoKeys},
  journal   = {MycoKeys},
  number    = {48},
  publisher = {Pensoft Publishers},
  address   = {Sofia},
  issn      = {1314-4057},
  doi       = {10.3897/mycokeys.48.30350},
  pages     = {1 -- 40},
  year      = {2019},
  abstract  = {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.},
  language  = {en}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Farbenfroh und verg{\"a}nglich},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Eine botanische Wanderung rund um den Neuendorfer See},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Der Große Burgwall bei Havelberg : ein bemerkenswerter Pilzstandort},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Kommt Plagiothecium undulatum (HEDW) B.S.G. noch in der Niederlausitz vor?},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Ein Beitrag zur Pilzflora des G{\"o}rlsdorfer Waldes},
  year      = {1997},
  language  = {de}
}
@article{KummerJentsch1997,
  author    = {Kummer, Volker and Jentsch, Helmut},
  title     = {Elodea nuttallii (PLANCH.), St, Johan nun auch in Brandenburg},
  year      = {1997},
  language  = {de}
}
@article{OtteRaetzelKummer1997,
  author    = {Otte, Volker and R{\"a}tzel, Stefan and Kummer, Volker},
  title     = {Bemerkenswerte Flechtenfunde aus Brandenburg III},
  year      = {1997},
  language  = {de}
}
@article{Kummer1997,
  author    = {Kummer, Volker},
  title     = {Einige interessante Neub{\"u}rger der Potsdamer Umgebung},
  year      = {1997},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Zur Pilzflora des Kienbergs bei Wolsier mit Hinweisen auf die Phanerogamenflora},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Zum Vorkommen von Asplenium viride HUDS : in Berlin und Brandenburg},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Exkursionsbericht "Neuendorfer Se/Unterspreewald" am 31.08.1996},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Die Exkursion zum Gollwitzer Havelufer},
  year      = {1996},
  language  = {de}
}
@article{Kummer1996,
  author    = {Kummer, Volker},
  title     = {Beitr{\"a}ge zur Pilzflora des Spreewaldes : I. Bemerkenswerte und seltene Funde aus dem Unterspreewaldgebiet},
  year      = {1996},
  language  = {de}
}