Natural intersectional hybridization in perityle (Compositae) A. Michael Powell OriginalPaper 01 January 1970 Pages: 3 - 10
A New Jamaican species of lisianthius (Gentianaceae) Richard E. Weaver OriginalPaper 01 January 1970 Pages: 11 - 13
The taxonomic status of physalis lanceolata (Solanaceae) in the Carolina Sandhills W. Frederick Hinton OriginalPaper 01 January 1970 Pages: 14 - 19
Gentrya, a new genus of scrophulariaceae from Mexico Dennis E. BreedloveLawrence R. Heckard OriginalPaper 01 January 1970 Pages: 20 - 24
Two new species of phacelia (Hydrophyllaceae) from California Lincoln ConstanceLawrence R. Heckard OriginalPaper 01 January 1970 Pages: 25 - 30
A biosystematic and evolutionary study of capsicum baccatum (Solanaceae) W. Hardy Eshbaugh OriginalPaper 01 January 1970 Pages: 31 - 43
A revision of phyllanthus (Euphorbiaceae) in the Continental United States Grady L. Webster OriginalPaper 01 January 1970 Pages: 44 - 76
Studies in eupatorium (Compositae), III. Apparent wind pollination Jerold L. GrashoffJohn H. Beaman OriginalPaper 01 January 1970 Pages: 77 - 84
A statistical analysis of sixteen taxa of rhynchosia (Leguminosae) in the United States Wesley C. Walraven OriginalPaper 01 January 1970 Pages: 85 - 92