To Otto Lange III
List of contributors XII
I News from lichen taxonomy and chemistry 1
BÜDEL, B. & ELIX, J.A.: Peltula lange) Büdel et Elix spec. nov. from 3
Australia, with remarks on its chemistry and the ascoma of
Peltula clavata (Krempelh.) Wetm.
FOLLMANN, G.: Hubbsia lange), a new Roccellaceae from the 11
Atacama Desert, North Chile, and the identity of two Reinkella
species
FEIGE, G.B., RÖSER, G. & LUMBSCH, H.T.: Chemotaxonomic studies 25
on European Squamarina species (Ascomycotina, Lecanorales)
KNOPH, J.-G., LEUCKERT, C. & RITTNER, W.: Chemie und Verbreitung von
Lecidella scabra (Taylor) Hertel & Leuck. 33
II Modern aspects and results about anatomy, growth, 47
strategies and biotic interactions of lichens
JAHNS, H.M. & OTT, S: Life strategies in lichens - some general 49
considerations
OTT, S, PRZEWOSNIK, R., Soso, F. & JAHNS, H.M.: The nature of 69
cephalodia in Placopsis contortuplicata and other species of
the genus
ZORER, R., TÜRK, R. & STOCKER-WÖRGÖTTER, E.: Resynthesis of 85
the lichen Cladonia fimbriata from the axenic cultures of the
isolated symbionts
PROKSCH, P. & HESBACHER, S.: Lichen products in lichen-herbivore 91
interactions
III Progress in understanding lichen water relations 103
SCHEIDEGGER, C., FREY, B. & SCHROETER, B.: Cellular water uptake, 105
translocation and PSII activation during rehydration of
desiccated Lobaria pulmonaria and Nephroma bellum
MAGUAS, C., VALEALDARES, F., BRUGNOLI, E. & CATARINO, F.: 119
Carbon isotope discrimination, chlorophyll fluorescence and
quantitative structure in the assessment of gas diffusion
resistances of lichens
DIETZ, S. & HARTUNG, W.: Regulation of the abscisic acid content in 137
the two lichen species Hypogymnia physodes and Pelligern
praetextata
LÖSCH, R., PAUSE, R. & MES, B.: Poikilohydrie und räumlich- 145
zeitliche Existenznische von Flechten und Moosen
IV Photosynthetic performance and growth of lichens 163
in different habitats on the globe
WINKLER, J.B. & KAPPEN, L.: Photosynthetic capacity of endolithic 165
lichens from South-Africa
THOMAS, M.A., NASH III, T.H. & GRIES, C.: Ecophysiological 183
comparison of two tropical/subtropical lichen species:
Dictyonema glabratum from an alpine habitat and
Coenogonium interplexam from a lowland forest
SANCHO, L. G., PINTADO, A., VALEADARES, F., SCHROETER, B. & 197
SCHLENSOG, M.: Photosynthetic performance of cosmopolitan
lichens in the maritime Antarctic
GREEN, T.G.A.: Growth rates of foliicolous lichens on garden shrubs 211
in New Zealand
V Stress and stress response of lichens and their 221
potential photobionts
BILGER, W., BOHUSCHKE, M. & EHLING-SCHULZ, M.: Annual time 223
courses of the contents of carotenoids and UV-protective pigments in the
cyanobacterium Nostoc commune
SCHLENSOG, M., SCHROETER, B., SANCHO, L. G., PINTADO, A. & 235
KAPPEN, L.: Effect of strong irradiance on photosynthetic
performance of the melt-water dependent cyanobacterial lichen
Leplogium puberulum (Collemataceae) Hue from the maritime
Antarctic
JENSEN, M., FEIGE, G.B. & KOFFER, M.: The effect of short-time 247
heating on wet Lobaria pulmonaria: a chlorophyll fluorescence
study
BROWN, D. & MANHOOD, S.: Does ion loss from lichens reliably 255
measure membrane damage?
VI Dynamic aspects of understanding the present 265
lichen distribution in Europe
SCHÖLLER, H.: Some aspects concerning the influence of substrate, 267
biotope, and organism-specific factors on decline and threat of
lichens in Central Europe, in particular Hesse (Germany)
WIRTH, V.: Einheimisch oder eingewandert? Uber die Einschätzung 277
von Neufunden von Flechten
PISUT, I.: Changes in the epiphytic lichen flora of Slovakia 289
SEAWARD, M.R.D.: Urban deserts bloom: a lichen renaissance 297