1. The embryology ofEpipogium roseum (Orchidaceae)

   • Govindappa D. Arekal
   • K. Ananda Karanth

   OriginalPaper Pages: 1 - 7

2. Anatomy and evolution in MacaronesianEchium (Boraginaceae)

   • Angela E. Aldridge

   OriginalPaper Pages: 9 - 22

3. Consequences of artificial and natural chromosome doubling on DNA, RNA and protein contents inCochlearia (Brassicaceae)

   • P. P. Gupta

   OriginalPaper Pages: 23 - 27

4. The distribution of sex inMyrica gale

   • David G. Lloyd

   OriginalPaper Pages: 29 - 45

5. Vergleichende cytotaxonomische Untersuchungen anRanunculus seguieri und der Artengruppe desR. alpestris (Ranunculaceae)

   • Matthias Baltisberger
   • Moritz Müller

   OriginalPaper Pages: 47 - 60

6. Investigations on the content of steroidal alkaloids and sapogenins withinSolanum sect.Solanum ( = sect.Morella) (Solanaceae)

   • Reinhold Carle

   OriginalPaper Pages: 61 - 71

7. Die Perikarpentwicklung geflügelter Klausen aus demParacaryum-Verwandtschaftskreis (Cynoglosseae, Boraginaceae)

   • Hartmut H. Hilger

   OriginalPaper Pages: 73 - 88

8. Differentiation of Fraction 1 protein in relation to age and distribution of Angiosperm groups

   • Kevin Chen
   • S. G. Wildman

   OriginalPaper Pages: 89 - 113

9. Chlamydomonas chlorococcoides nova spec., eine neue Art mit gelapptem Chloroplast (Volvocales, Chlorophyta)

   • H. Ettl
   • K. Schwarz

   OriginalPaper Pages: 115 - 120

10. The ultrastructure of the outer cell wall-layer ofChlorella mutants with and without sporopollenin

    • J. Burczyk
    • M. Hesse

    OriginalPaper Pages: 121 - 137

11. The tubular exine ofLauraceae andHernandiaceae, a novel type of exine structure in seed plants

    • Klaus Kubitzki

    OriginalPaper Pages: 139 - 146

12. Aechmea itapoana, a new species from Bahia (Brazil): Taxonomy and ecology

    • Wilfried Morawetz
    • Walter Till

    Short Communication Pages: 147 - 151

13. Die Lage des Chromatophors in Beziehung zur Systematik vonCymbella-Arten (Bacillariophyceae)

    • Lothar Geitler

    Kurze Mitteilung Pages: 153 - 156