1. Isolation of male and female gametes in higher plants

   • C. H. Theunis
   • E. S. Pierson
   • M. Cresti

   Review Pages: 145 - 154

2. Reproductive timetable for the tropical Vireya rhododendron, R. Macgregoriae

   • E. G. Williams
   • J. L. Rouse
   • R. B. Knox

   Original Articles Pages: 155 - 165

3. Ultrastructure of the micropyle and its relationship to pollen tube growth and synergid degeneration in sunflower

   • Hua Yan
   • Hong-yuan Yang
   • William A. Jensen

   Original Articles Pages: 166 - 175

4. Brassica napus pollen development during generative cell and sperm cell formation

   • M. Murgia
   • S. Detchepare
   • M. Cresti

   Original Articles Pages: 176 - 181

5. Germination of Pistacia vera L. pollen in liquid medium

   • A. Golan-Goldhirsh
   • U. Schmidhalter
   • J. J. Oertli

   Original Articles Pages: 182 - 187

6. Inorganic salts modify embryo sac development in sexual and aposporous Cenchrus ciliaris

   • E. K. Gounaris
   • R. T. Sherwood
   • D. L. Gustine

   Original Articles Pages: 188 - 192

7. The occurrence of estrogens in relation to reproductive processes in flowering plants

   • Jin-Song Zhang
   • Zhong-Han Yang
   • T. H. Tsao

   Original Articles Pages: 193 - 196

8. Cytological evidence of a new male-sterile mutant in soybean (Glycine max (L.) Merr.)

   • P. Mariani
   • M. Lucchin
   • P. Parrini

   Original Articles Pages: 197 - 202

9. The relationship between pollen grain size and progeny gender in dioecious Silene latifolia (Caryophyllaceae)

   • S. B. Carroll
   • D. L. Mulcahy

   Original Articles Pages: 203 - 207

10. Effects of genotype on pollen performance in Cucurbita pepo

    • M. Quesada
    • C. D. Schlichting
    • A. G. Stephenson

    Original Articles Pages: 208 - 214

11. Microsporogenesis and tapetal development in fertile and cytoplasmic male-sterile sugar beet (Beta vulgaris L.)

    • C. Halldén
    • G. Karlsson
    • W. K. Heneen

    Original Articles Pages: 215 - 225

12. Sperm cells of the pollen tubes of Brassica: Ultrastructure and isolation

    • P. E. Taylor
    • J. Kenrick
    • R. B. Knox

    Original Articles Pages: 226 - 234