1. Revision of Trillium subgenus Phyllantherum (Liliaceae)

   • John D. Freeman

   OriginalPaper Pages: 1 - 62

2. Additional chromosome counts in Nigerian grasses

   • Omotoye Olorode

   OriginalPaper Pages: 63 - 68

3. Metastevia (Compositae: Eupatorieae): A new genus from Mexico

   • Jerold L. Grashoff

   OriginalPaper Pages: 69 - 73

4. The Vernonia lindheimeri complex (Compositae)

   • Bruce L. King
   • S. B. Jones

   OriginalPaper Pages: 74 - 86

5. Autogamy and hybridization as evolutionary mechanisms in Panicum subgenus Dicanthelium (Gramineae)

   • Richard W. Spellenberg

   OriginalPaper Pages: 87 - 95