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Lichenes Delicati Exsiccati Editae of little, fine, special lichens is edited in honour of Antonín Vězda (1920–2008). The foliicolous lichens Coenogonium seychellense sp. n. and C. subdilucidum sp. n. were collected by Tamás Pócs, Fellhanera stanhopeae by Attila Borhidi, Lyromma dolicobelum of ascosporic state was found by Adam Flakus, Porina applanata by Paulina Bawingan. Other collections originate from the participants of the 20th NLF meeting 2013, Vadstena and surroundings — where Erik Acharius, the “father of lichenology” lived for decades. Several species collected by László Lőkős from Albania, Bulgaria and Montenegro. The fourth fascicle of the exsiccate is consisted of 15 species (including 3 lichenicolous fungi), distributed to 12 lichen herbaria of the world and dedicated to Robert Lücking’s 50th birthday.

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Lichenes Delicati Exsiccati Editae of little, fine, special lichens is edited in honour of Antonín Vězda (1920–2008). The lichen-forming fungus Santessonia namibensis is included on the occasion of the 95th anniversary of Rolf Santesson, the outstanding Swedish lichenologist’s birth. Bibliographic data of the most important publications concerning to his lichenological carrier is compiled. The second fascicle of the exsiccate is consisted of 15 species and distributed to 12 lichen herbaria of the world.

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Lichenes Delicati Exsiccati Editae of little, fine, special lichens is edited in honour of Antonín Vězda (1920–2008). The foliicolous lichen Coenogonium usambarense was collected by Tamás Pócs, who contributed also often to Vězda’s exsiccates and celebrated his 80th birthday in 2013. Herpothallon hypoprotocetraricum was also collected in Africa during a field trip organised by him. It represents isotype material. The third fascicle of the exsiccate is consisted of 15 species and distributed to 12 lichen herbaria of the world.

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The bibliography of foliicolous lichenised fungi is compiled, listing publications of the last 60 years following Santesson’s world monograph on the foliicolous lichens. It consists of 708 scientific papers, journal publications, books, posters, exsiccates, dissertation manuscripts.

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A new exsiccate, Lichenes Delicati Exsiccati Editae — of little, fine, special lichens and lichenicolous fungi — dedicated to the famous lichenologist Antonín Vězda (1920–2008), is compiled and issued. The lichenicolous fungus Keratosphaera antoniana is described from Bolivia and named after him on the occasion of the 90th anniversary of his birth. The first fascicle is consisted of 15 species and distributed to 12 lichen herbaria worldwide (BM, BP, F, hb. Flakus, hb. Kalb, HO, KRAM, PRA-V, SAV, STU, UPS, VBI).

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The former Toninia coeruleonigricans now represents three almost equally frequent species in Hungary. Toninia opuntioides, T. physaroides and T. sedifolia were investigated in the same locality for comparison of various parameters of their microhabitats. Analysis of variance (ANOVA) was used to test the niche preferences of these species. More than two hundred soil samples were analysed in the respect of six soil parameters. Aspect and slope degree of the microsites, and the abundance of associated bryophyte and lichen species were also studied. ANOVA revealed that there are significant differences between the species in acidity, carbonate content, soil depth, aspect and slope degree.

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Sarcopyrenia gibba was discovered as new to Hungary recently. Specimens were collected throughout the country at 11 localities mainly on anthropogenic substrates (concrete, asbestos roof, stone walls, etc.) from 1982. The floristically new species seems to be spreading in Hungary probably due to the effect of urbanisation.

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Conductimetry as an alternative data capture method for following microbial growth has a great potential as a research tool of predictive microbiology. In spite of this fact there is only a limited number of applications using conductimetric data for model generation. In this study the growth of single strains of Listeria monocytogenes and Lactococcus lactis was tested in 5 media using a RABITinstrument. The goal of the work was to find selective growth media for Listeria and Lactococcus, respectively, in order to study their interaction in mixed-culture using the conductimetric technique. Whitley Anaerobic broth, Whitley Impedance broth and modified Whitely Impedance broth (Whitley Impedance broth + Chloramphenicol 7 mg l &1) were not suitable for following selectively the growth of Lactococcus lactis or Listeria monocytogenes in a mixed culture of the two bacteria. BiMedia 630 A for Lactococcus lactis and Bimedia 403 A for Listeria monocytogenes satisfied the demands raised by conductance measurement. Linear correlations were established between the graphically estimated TTD values of the conductance curves and the logarithmic numbers of colony forming units (CFU). The correlations were very strong in each case (determination coefficients (R 2) of the linear regression were higher than 0.98 at both medium-strain combinations). However, in BiMedia 630 Listeria monocytogenes was capable of slow growth, therefore, this medium would be feasible for studying microbial interactions if only low concentrations of Listeria (less than 10 6 CFU ml &1) were present in the mixed culture.

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