1. Electron and light microscopy of gametogenesis and gamete fusion inChlamydomonas reinhardii

   • T. Cavalier-Smith

   Original Papers Pages: 1 - 18

2. Microtubular complexes in blue-green algae

   • T. Bisalputra
   • B. R. Oakley
   • C. M. Shields

   Original Papers Pages: 19 - 28

3. Postgenital carpel fusion inCatharanthus roseus

   • Dan B. Walker

   Original Papers Pages: 29 - 41

4. Postgenital carpel fusion inCatharanthus roseus

   • Dan B. Walker

   Original Papers Pages: 43 - 63

5. Elektronenmikroskopischer Nachweis der subpelliculären Lage des Silberliniensystems beiColpidium colpoda (Ciliata, Tetrahymenidae)

   • Wilhelm Foissner
   • Peter Simonsberger

   Abhandlungen Pages: 65 - 82

6. Untersuchungen zur Cytomorphogenese vonMicrasterias thomasiana undMicrasterias denticulata Bréb. unter Einfluß von Actinomycin D und Ethidiumbromid

   • Christa Hackstein-Anders

   Abhandlungen Pages: 83 - 105

7. Sporophytenentwicklung vonFunaria hygrometrica Sibth

   • C. Wiencke
   • D. Schulz

   Abhandlungen Pages: 107 - 117

8. Specific binding of insulin to the unicellular algaAcetabularia mediterranea

   • F. Legros
   • P. Uytdenhoef
   • V. Conard

   Original Papers Pages: 119 - 134

9. The quiescent centre in excised roots ofPisum sativum L.

   • Ronald D. MacLeod
   • Denis W. F. Scadeng

   Original Papers Pages: 135 - 140

10. Cytoplasmic filaments and their assembly into bundles inPhysarum plasmodium

    • Reiko Nagai
    • Toyoki Kato

    Original Papers Pages: 141 - 158

11. Characterization of fibrous compound of Golgi vesicles in tapetal cells ofDelphinium

    • Barbara Gabara

    Original Papers Pages: 159 - 168

12. Calcium and magnesium contents of ectoplasm and endoplasm ofPhysarum polycephalum plasmodium

    • Reiko Nagai
    • Yoshio Ishima
    • Toshifumi Takenaka

    Original Papers Pages: 169 - 174

13. Caractéristiques ultrastructurales des parois cellulaires d'«embryoides» obtenus á partir de protoplastes d'Antirrhinum majus L.

    • Roger Prat
    • Simone Poirier-Hamon

    Original Papers Pages: 175 - 187

14. Bacteria-like endobionts of the suctorian,Discophrya sp.

    • Alan Curry
    • Ronald D. Butler

    Original Papers Pages: 189 - 203

15. Cell division in the pennate diatomDiatoma vulgare

    • Jeremy D. Pickett-Heaps
    • Kent L. McDonald
    • David H. Tippit

    Original Papers Pages: 205 - 242

16. Studies on the effects of alcohols on membrane water permeability ofNitella

    • Keitaro Kiyosawa

    Original Papers Pages: 243 - 252

17. Evidence for a species-specific cell fusion hormone in red algae

    • Susan Drury Waaland

    Original Papers Pages: 253 - 261

18. An ultrastructural study of pyrenoids inLeptosiropsis torulosa

    • Daniel E. Wujek
    • Keith E. Camburn
    • Hollings T. Andrews

    Brief Report Pages: 263 - 268

19. Fine structural and cytochemical analysis of phragmosomes (microbodies) during cytokinesis inAllium root tip cells

    • Laszlo Hanzely
    • Eugene L. Vigil

    Brief Report Pages: 269 - 277

20. The occurrence and structure of centrosomes inLycopodium complanatum

    • Robert R. Robbins
    • Zane B. Carothers

    Brief Report Pages: 279 - 284

21. Membrane-bounded cisternae associated with the chromosomes at first meiotic metaphase in microsporocytes ofRhoeo spathacea

    • Elizabeth Williams
    • J. Heslop-Harrison

    Brief Report Pages: 285 - 289

22. Evidence of a large, ramified mitochondrium inChlamydomonas reinhardii

    • B. Grobe
    • C. -G. Arnold

    Brief Report Pages: 291 - 294