Do pollinators determine hybridization patterns in sympatricSatyrium (Orchidaceae) species? A. G. EllisS. D. Johnson OriginalPaper Pages: 137 - 150
Evolutionary change in seed size among some legume species: The effects of phylogeny Hyesoon KangRichard B. Primack OriginalPaper Pages: 151 - 164
Polyploid speciation inHedera (Araliaceae): Phylogenetic and biogeographic insights based on chromosome counts and ITS sequences Pablo VargasHugh A. McAllisterMike J. Wilkinson OriginalPaper Pages: 165 - 179
Morphological evolution and ecological diversification of the forest-dwelling poppies (Papaveraceae: Chelidonioideae) as deduced from a molecular phylogeny of the ITS region Frank R. BlattnerJoachim W. Kadereit OriginalPaper Pages: 181 - 197
DNA sequence data reveal polyphyly of Brexioideae (Brexiaceae; Saxifragaceae sensu lato) Jason A. KoontzDouglas E. Soltis OriginalPaper Pages: 199 - 208
Chloroplast DNA restriction site data support a narrowed interpretation ofEupatorium (Asteraceae) Edward E. SchillingJose L. PaneroPatricia B. Cox OriginalPaper Pages: 209 - 223
Reproductive conflicts ofPalicourea padifolia (Rubiaceae) a distylous shrub of a tropical cloud forest in Mexico Paola Sabina ContrerasJuan Francisco Ornelas OriginalPaper Pages: 225 - 241
Homeosis, morphogenetic gradient and the determination of floral identity in the inflorescences ofPhilodendron solimoesense (Araceae) Denis BarabéChristian Lacroix OriginalPaper Pages: 243 - 261
Phylogenetic relationships of the enigmatic fern families Hymenophyllopsidaceae and Lophosoriaceae: Evidence fromrbcL nucleotide sequences Paul G. WolfSedonia D. SipesKunihiko Ueda OriginalPaper Pages: 263 - 270