1. Microtubular organization during asymmetrical division of the generative cell inGagea lutea

   • Hong-Qi Zhang
   • Jerzy Bohdanowicz
   • Mauro Cresti

   Original Articles Pages: 269 - 276

2. Ecological differentiation ofEuphorbia lasiocaula andE. sinanensis (Euphorbiaceae) I plant height, phenology and allocation to stems and leaves

   • Takahide Kurosawa

   Original Articles Pages: 277 - 281

3. Pollen morphology of Gyrostemonaceae, Bataceae andKoeberlinia

   • Hiroshi Tobe
   • Masamichi Takahashi

   Original Articles Pages: 283 - 288

4. Floral ontogeny in the Plumbaginaceae

   • J. De Laet
   • D. Clickemaillie
   • E. Smets

   Original Articles Pages: 289 - 304

5. Growth inhibition of suspension cultured plant cells by ribonucleases

   • W. Mary Lush
   • Adrienne E. Clarke

   Original Articles Pages: 305 - 312

6. Karyomorphology of some Moraceae and Cecropiaceae (Urticales)

   • Kazuo Oginuma
   • Hiroshi Tobe

   Original Articles Pages: 313 - 326

7. Embryology and relationships ofGyrocarpus andHernandia (Hernandiaceae)

   • Kweon Heo
   • Hiroshi Tobe

   Original Articles Pages: 327 - 341

8. Formation of novel endoplasmic and cortical microtubular arrays inAdiantum protonemal cells induced by blue light irradiation and acropetal centrifugation

   • Christian Wunsch
   • Masamitsu Wada

   Original Articles Pages: 343 - 350

9. Possible involvement of DNA-repair events in the transdifferentiation of mesophyll cells ofZinnia elegans into tracheary elements

   • Munetaka Sugiyama
   • Edward C. Yeung
   • Atsushi Komamine

   Original Articles Pages: 351 - 361

10. Micro-vesicles, pyriform vesicles and macro-vesicles associated with the plasma membrane in the root hairs ofVicia hirsuta after freeze-substitution

    • Robert W. Ridge

    Original Articles Pages: 363 - 368

11. The leaves of the common box,Buxus sempervirens (Buxaceae), become red as the level of a red carotenoid, anhydroeschscholtzxanthin, increases

    • Kazuko Ida
    • Kazumori Masamoto
    • Emiko Hasegawa

    Original Articles Pages: 369 - 376

12. Adaptive significance of sprouting ofEuptelea polyandra, a deciduous tree growing on steep slopes with shallow soil

    • Akiko Sakai
    • Takeshi Ohsawa
    • Masahiko Ohsawa

    Original Articles Pages: 377 - 386

13. Gravitropic response inEichhornia cressipes (water hyacinth) I. process of gravitropic bending in the peduncle

    • Jiro Kohji
    • Ryoichi Yamamoto
    • Yoshio Masuda

    Original Articles Pages: 387 - 393

14. Diamine oxidase from millet catalyzes the oxidation of 1, 3-diaminopropane

    • Howlader M. A. Awal
    • Eiji Hirasawa

    Short Communication Pages: 395 - 397