1. Differentiation of generative and vegetative cells in angiosperm pollen

   • Ichiro Tanaka

   REVIEW Pages: 1 - 7

2. Discovery of highly apomictic and highly amphimictic dihaploids in Allium tuberosum

   • A. Kojima
   • Y. Nagato

   ORIGINAL PAPER Pages: 8 - 12

3. Genetics and cytology of a new genic male-sterile soybean [Glycine max (L.) Merr.]

   • W. Jin
   • H. T. Horner
   • Reid G. Palmer

   ORIGINAL PAPER Pages: 13 - 21

4. A multi-nucleate male-sterile mutant of maize with gametophytic expression

   • M. Sari-Gorla
   • Emanuele Gatti
   • M. Enrico Pè

   ORIGINAL PAPER Pages: 22 - 26

5. Observations of pollen tube growth in Nicotiana alata and their implications for the mechanism of self-incompatibility

   • W. M. Lush
   • Adrienne E. Clarke

   ORIGINAL PAPER Pages: 27 - 35

6. The relationship between phenology of pistillate flower organogenesis and mode of heterodichogamy in Juglans regia L. (Juglandaceae)

   • V. S. Polito
   • Katherine Pinney

   ORIGINAL PAPER Pages: 36 - 39

7. Early signs of disruption of wheat anther development associated with the induction of male sterility by meiotic-stage water deficit

   • Sylvie Lalonde
   • Dwight U. Beebe
   • H. S. Saini

   ORIGINAL PAPER Pages: 40 - 48

8. Megagametogenesis in Arabidopsis wild type and the Gf mutant

   • Cory A. Christensen
   • Edward J. King
   • G. N. Drews

   ORIGINAL PAPER Pages: 49 - 64

9. Motility in ungerminated grass pollen: association of myosin with polysaccharide-containing wall-precursor bodies (P-particles)

   • J. Heslop-Harrison
   • Y. Heslop-Harrison
   • J. S. Heslop-Harrison

   SHORT COMMUNICATION Pages: 65 - 66