1. A critical evaluation of reproductive barriers between closely related species using DNA markers - a case study in Pinus

   • W. Wachowiak
   • B. R. Stephan
   • B. Ziegenhagen

   OriginalPaper 14 December 2005 Pages: 1 - 8

2. Breeding system and spatial variation in the pollination biology of the heterocarpic Thymelaea velutina (Thymelaeaceae)

   • M. C. de la Bandera
   • A. Traveset

   OriginalPaper 14 December 2005 Pages: 9 - 23

3. An attempt to clarify taxonomic relationships in ``Verwandtschaftskreis der Gattung Ligusticum'' (Umbelliferae-Apioideae) by molecular analysis

   • C. M. Valiejo-Roman
   • V. S. Shneyer
   • M. G. Pimenov

   OriginalPaper 17 January 2006 Pages: 25 - 43

4. Nectary structure and nectar presentation in Aloe castanea and A. greatheadii var. davyana (Asphodelaceae)

   • M. Nepi
   • H. Human
   • E. Pacini

   OriginalPaper 17 January 2006 Pages: 45 - 55

5. Phylogeny of Rhododendron section Vireya (Ericaceae) based on two non-coding regions of cpDNA

   • G. K. Brown
   • L. A. Craven
   • P. Y. Ladiges

   OriginalPaper 29 December 2005 Pages: 57 - 93

6. Genome size in Bulgarian Centaurea s.l. (Asteraceae)

   • S. Bancheva
   • J. Greilhuber

   OriginalPaper 29 December 2005 Pages: 95 - 117

7. Karyotype characterization of five Brazilian species of Echinodorus (Alismataceae) with chromosomal banding and 45S rDNA FISH

   • J. Y. Costa
   • E. R. Forni-Martins
   • A. L. L. Vanzela

   OriginalPaper 17 January 2006 Pages: 119 - 127

8. Book review

   • Carole T Gee

   Book Review Pages: 129 - 131