1. Circadian rhythmicity of nectar secretion in Hoya carnosa

   • Philippe Matile

   Original Paper Pages: 1 - 7

2. Chromosome numbers of plant species from the Canary Islands

   • Matthias Baltisberger
   • Alex Widmer

   Original Paper Pages: 9 - 30

3. Composed cushions and coexistence with neighbouring species promoting the persistence of Eritrichium nanum in high alpine vegetation

   • Heinrich Zoller
   • Heiner Lenzin

   Original Paper Pages: 31 - 40

4. La végétation des sols polygonaux aux étages alpin supérieur et subnival en Valais (Alpes centro-occidentales, Suisse)

   • Claude Béguin
   • Mélanie Progin Sonney et Michel Vonlanthen

   Original Paper Pages: 41 - 54

5. Biomass and primary productivity of an Alnus viridis stand – a case study from the Schächental valley, Switzerland

   • Eric Wiedmer
   • Béatrice Senn-Irlet

   Original Paper Pages: 55 - 64

6. Distribution of evergreen broad-leaved woody species in Insubria in relation to bedrock and precipitation

   • Silje Berger
   • Gian-Reto Walther

   Original Paper Pages: 65 - 77

7. Zur Kenntnis der Taxonomie und Verbreitung der Alpenpflanzen

   • Elias Landolt

   Original Paper Pages: 79 - 90

8. Häufigkeit und Verbreitung von Himantoglossum hircinum im Kanton Bern

   • Urs Känzig-Schoch

   Original Paper Pages: 91 - 118