1. Instructions to contributors

   • Richard H. Pohl
   • Duane Isley

   Announcement 01 January 1970 Pages: 1 - 2

2. Natural intersectional hybridization in perityle (Compositae)

   • A. Michael Powell

   OriginalPaper 01 January 1970 Pages: 3 - 10

3. A New Jamaican species of lisianthius (Gentianaceae)

   • Richard E. Weaver

   OriginalPaper 01 January 1970 Pages: 11 - 13

4. The taxonomic status of physalis lanceolata (Solanaceae) in the Carolina Sandhills

   • W. Frederick Hinton

   OriginalPaper 01 January 1970 Pages: 14 - 19

5. Gentrya, a new genus of scrophulariaceae from Mexico

   • Dennis E. Breedlove
   • Lawrence R. Heckard

   OriginalPaper 01 January 1970 Pages: 20 - 24

6. Two new species of phacelia (Hydrophyllaceae) from California

   • Lincoln Constance
   • Lawrence R. Heckard

   OriginalPaper 01 January 1970 Pages: 25 - 30

7. A biosystematic and evolutionary study of capsicum baccatum (Solanaceae)

   • W. Hardy Eshbaugh

   OriginalPaper 01 January 1970 Pages: 31 - 43

8. A revision of phyllanthus (Euphorbiaceae) in the Continental United States

   • Grady L. Webster

   OriginalPaper 01 January 1970 Pages: 44 - 76

9. Studies in eupatorium (Compositae), III. Apparent wind pollination

   • Jerold L. Grashoff
   • John H. Beaman

   OriginalPaper 01 January 1970 Pages: 77 - 84

10. A statistical analysis of sixteen taxa of rhynchosia (Leguminosae) in the United States

    • Wesley C. Walraven

    OriginalPaper 01 January 1970 Pages: 85 - 92