Comparison of rRNA genotype frequencies ofParmelia sulcata from long established and recolonizing sites following sulphur dioxide amelioration A. CrespoP. D. BridgeO. F. Cubero OriginalPaper Pages: 177 - 183
Ribes (Grossulariaceae) phylogeny as indicated by restriction-site polymorphisms of PCR-amplified chloroplast DNA Wes MessingerKim HummerAaron Liston OriginalPaper Pages: 185 - 195
Temporal variation in pollinarium size after its removal in species of Bulbophyllum: A different mechanism preventing self-pollination in Orchidaceae Eduardo Leite BorbaJoão Semir OriginalPaper Pages: 197 - 204
Reproductive systems and crossing potential in three species ofBulbophyllum (Orchidaceae) occurring in Brazilian ‘campo rupestre’ vegetation Eduardo Leite BorbaGeorge John ShepherdJoão Semir OriginalPaper Pages: 205 - 214
Biosystematic study ofRoegneria tenuispica, R. ciliaris andR. pendulina (Poaceae:Triticeae) Yong-Hong ZhouChi YenYou-Liang Zheng OriginalPaper Pages: 215 - 220
Megaspore development inSelaginella The gap and the mesospore Marta A. MorbelliJohn R. Rowley OriginalPaper Pages: 221 - 243
Karyotype constancy and genome size variation in BulgarianCrepis foetida s. l. (Asteraceae) Dessislava DimitrovaIrma EbertStefan Kozhuharov OriginalPaper Pages: 245 - 257
Inactivation of pollen and other effects of genome-plastome incompatibility inOenothera W. StubbeE. Steiner OriginalPaper Pages: 259 - 277
Floral scent chemistry and pollination ecology in phytelephantoid palms (Arecaceae) Finn ErvikLars TollstenJette T. Knudsen OriginalPaper Pages: 279 - 297
Molecular phylogeny ofBrachycome (Asteraceae) T. DendaK. WatanabeM. Ito OriginalPaper Pages: 299 - 311
Intraspecific classification of melons (Cucumis melo L.) in view of their phenotypic and molecular variation A. StepanskyI. KovalskiR. Perl-Treves OriginalPaper Pages: 313 - 332
Possible pollination by hummingbirds inAnthurium sanguineum Engl. (Araceae) M. KraemerU. Schmitt Short Communication Pages: 333 - 335