1. Heterochromatin and chromosome variation in cultivated species ofTulipa subg.Leiostemones (Liliaceae)

   • D. H. Blakey
   • C. G. Vosa

   OriginalPaper Pages: 163 - 178

2. Cytological and hybridization studies inLeucanthemum (Compositae—Anthemideae) from North Africa

   • Balafama H. Wilcox

   OriginalPaper Pages: 179 - 195

3. B-Chromosomes inAllium flavum (Liliaceae) and some related species

   • Josef Loidl

   OriginalPaper Pages: 197 - 207

4. A comparative study of genomes in angiosperms

   • Wolfgang Wenzel
   • Vera Hemleben

   OriginalPaper Pages: 209 - 227

5. Hair morphology and the relationships of species inSolanum sect.Basarthrum

   • Almut Seithe
   • Gregory J. Anderson

   OriginalPaper Pages: 229 - 256

6. Sieve-element plastids, exine sculpturing and the systematic affinities of theBuxaceae

   • H. -Dietmar Behnke

   OriginalPaper Pages: 257 - 266

7. Cell structure and reproduction process in the Blue-Green algaChamaesiphon

   • Jiři Komárek
   • Jiři Ludvik

   OriginalPaper Pages: 267 - 277

8. Embryogeny in someCypereae

   • M. D. Padhye
   • Makde K. H.

   OriginalPaper Pages: 279 - 287

9. Auxospore formation inLicmophora (Bacillariophyta)

   • David G. Mann

   OriginalPaper Pages: 289 - 294

10. Über die Abgrenzung derChlorosarcinales von denChlorococcales

    • Elisabeth Tschermak-Woess

    OriginalPaper Pages: 295 - 301

11. Embryology ofCordia sebestena (Boraginaceae)

    • Tasneem Fathima Khaleel

    OriginalPaper Pages: 303 - 311

12. Acht neue Arten der GattungAnthemis (Compositae) aus Persien

    • M. Iranshahr

    Kurze Mitteilung Pages: 313 - 317

13. Zwei neue Hybriden in der GattungEuphrasia (Scrophulariaceae)

    • Ernst Vitek

    Kurze Mitteilung Pages: 319 - 322