Time relationships of sporopollenin synthesis associated with tapetum and microspores in Lilium J. Heslop-HarrisonH. G. Dickinson OriginalPaper Pages: 199 - 214
Orchid embryology: Pollen tetrads of Epidendrum scutella in the anther and on the stigma Alfredo CocucciWilliam A. Jensen OriginalPaper Pages: 215 - 229
Die Plastidenverteilung bei der Mitose der Schließzellenmutterzellen von haploidem Schwedenklee (Trifolium hybridum L.) Theodor Butterfass OriginalPaper Pages: 230 - 234
Absorptive cells in protoxylem: Association between mitochondria and the plasmalemma F. B. P. Wooding OriginalPaper Pages: 235 - 238
A comparative study of the ultrastructure of resting and active cambium of Salix fragilis, L. A. W. RobardsParveen Kidwai OriginalPaper Pages: 239 - 249
Patterns of incorporation of d-galactose into cell wall polysaccharide of growing maize roots R. M. RobertsV. S. Butt OriginalPaper Pages: 250 - 262
Free and membrane bound ribosomes of the cotyledons of Vicia faba (L.) P. I. PayneD. Bouter OriginalPaper Pages: 263 - 271
Translocation velocity and specific mass transfer in the sieve tubes of Fraxinus americana L. Martin H. Zimmermann OriginalPaper Pages: 272 - 278
Hemmung der Blütenbildung von Lemna gibba durch Ammonium Riklef Kandeler OriginalPaper Pages: 279 - 291
Effect of polarity and kinetin on the browning reaction of Dioscorea batatas and D. japonica T. AsahiraJ. P. Nitsch Short Communication Pages: 292 - 294