Reproductive biology of twoPrunus species (Rosaceae) in the Northwest Iberian Peninsula Javier GuitiánPablo GuitiánJosé María Sánchez OriginalPaper Pages: 153 - 165
A biosystematic study ofValeriana officinalis (Valerianaceae) distributed in Bulgaria L. N. EvstatievaN. V. HandjievaP. I. Pashankov OriginalPaper Pages: 167 - 179
Diurnal rhythms of the chlorophyll a/b binding protein mRNAs in wild emmer wheat and wild barley (Poaceae) in the Fertile Crescent Eviatar NevoHartmut MeyerBirgit Piechulla OriginalPaper Pages: 181 - 188
Normania, an endemic Macaronesian genus distinct fromSolanum (Solanaceae) J. Francisco-OrtegaJ. G. HawkesJ. R. Acebes-Ginovés OriginalPaper Pages: 189 - 205
Alkaloids of theSedum acre-group (Crassulaceae) Jan F. StevensHenk 't HartTheo M. Malingré OriginalPaper Pages: 207 - 217
Pregamic and postgamic self-incompatibility systems inCrocus (Iridaceae) G. Chichiriccó OriginalPaper Pages: 219 - 227
Seed morphology in Southern AfricanOrchidoideae (Orchidaceae) H. Kurzweil OriginalPaper Pages: 229 - 247
Chromosome banding patterns in Lettuce species (Lactuca sect.Lactuca, Compositae) W. J. M. KoopmanJ. H. De JongI. M. De Vries OriginalPaper Pages: 249 - 257
Cold-sensitive chromosome regions and heterochromatin inCestrum aurantiacum (Solanaceae) Christine BergJohann Greilhuber OriginalPaper Pages: 259 - 273
A descriptive system for corona analysis inAsclepiadaceae andPeriplocaceae Sigrid LiedeHenning Kunze OriginalPaper Pages: 275 - 284
A remarkable new species in the lichen genusPlacopsis from Papua New Guinea (lichenized ascomycetes,Agyriaceae) H. Thorsten LumbschHiroyuki KashiwadaniHeinar Streimann OriginalPaper Pages: 285 - 292