1. Reproductive biology of twoPrunus species (Rosaceae) in the Northwest Iberian Peninsula

   • Javier Guitián
   • Pablo Guitián
   • José María Sánchez

   OriginalPaper Pages: 153 - 165

2. A biosystematic study ofValeriana officinalis (Valerianaceae) distributed in Bulgaria

   • L. N. Evstatieva
   • N. V. Handjieva
   • P. I. Pashankov

   OriginalPaper Pages: 167 - 179

3. Diurnal rhythms of the chlorophyll a/b binding protein mRNAs in wild emmer wheat and wild barley (Poaceae) in the Fertile Crescent

   • Eviatar Nevo
   • Hartmut Meyer
   • Birgit Piechulla

   OriginalPaper Pages: 181 - 188

4. Normania, an endemic Macaronesian genus distinct fromSolanum (Solanaceae)

   • J. Francisco-Ortega
   • J. G. Hawkes
   • J. R. Acebes-Ginovés

   OriginalPaper Pages: 189 - 205

5. Alkaloids of theSedum acre-group (Crassulaceae)

   • Jan F. Stevens
   • Henk 't Hart
   • Theo M. Malingré

   OriginalPaper Pages: 207 - 217

6. Pregamic and postgamic self-incompatibility systems inCrocus (Iridaceae)

   • G. Chichiriccó

   OriginalPaper Pages: 219 - 227

7. Seed morphology in Southern AfricanOrchidoideae (Orchidaceae)

   • H. Kurzweil

   OriginalPaper Pages: 229 - 247

8. Chromosome banding patterns in Lettuce species (Lactuca sect.Lactuca, Compositae)

   • W. J. M. Koopman
   • J. H. De Jong
   • I. M. De Vries

   OriginalPaper Pages: 249 - 257

9. Cold-sensitive chromosome regions and heterochromatin inCestrum aurantiacum (Solanaceae)

   • Christine Berg
   • Johann Greilhuber

   OriginalPaper Pages: 259 - 273

10. A descriptive system for corona analysis inAsclepiadaceae andPeriplocaceae

    • Sigrid Liede
    • Henning Kunze

    OriginalPaper Pages: 275 - 284

11. A remarkable new species in the lichen genusPlacopsis from Papua New Guinea (lichenized ascomycetes,Agyriaceae)

    • H. Thorsten Lumbsch
    • Hiroyuki Kashiwadani
    • Heinar Streimann

    OriginalPaper Pages: 285 - 292