The tapetum: Its form, function, and possible phylogeny inEmbryophyta Ettore PaciniG. G. FranchiMichael Hesse OriginalPaper Pages: 155 - 185
Community studies in pollination ecology in the high temperate Andes of central Chile II. effect of temperature on visitation rates and pollination possibilities Mary T. Kalin ArroyoJuan J. ArmestoRichard B. Primack OriginalPaper Pages: 187 - 203
Distinctions betweenHordeum bulbosum andH. murinum s.l. in seed and herbarium collections B. R. BaumL. G. Bailey OriginalPaper Pages: 205 - 210
Scanning electron microscopy of pollen grains of some species of the genusArum (Araceae) Marija Bedalov OriginalPaper Pages: 211 - 216
A cladistic evaluation of the lower and higher green plants (Viridiplantae) Hans J. Sluiman OriginalPaper Pages: 217 - 232
Further flavonoid studies onAttalea species and some related cocosoid palms Christine A. WilliamsJeffrey B. HarborneSidney F. Glassman OriginalPaper Pages: 233 - 239
Hybridization and speciation in the genusDryopteris (Pteridophyta:Dryopteridaceae) on Pico Island in the Azores Mary Gibby OriginalPaper Pages: 241 - 252
Chemotaxonomical investigations of the generaBlackstonia andCentaurium (Gentianaceae) W. G. van der Sluis OriginalPaper Pages: 253 - 286
Pollenfertility and seed formation in theOrnithogalum umbellatum/angustifolium complex (Liliaceae/Scilloideae) L. W. D. van Raamsdonk OriginalPaper Pages: 287 - 297
Comparative fecundity of morphs in a mixed monoclinous-andromonoecious population ofWurmbea dioica subsp.alba (Liliaceae) in Western Australia Robert Ornduff OriginalPaper Pages: 299 - 302
The application and citation of the generic nameParmeliopsis (Lecanorales, Parmeliaceae) David L. Hawksworth Short Communication Pages: 303 - 307
