Abstracts Of Papers To Be Presented At The Joint Sessions Of The American Society Of Plant Taxonomists And The Systematics Section Of The Botanical Society Of America At The American Institute Of Biological Sciences Meetings, University Of Minnesota, Minneapolis, 27 August-1 September 1972 Adams Robert P.Anderson Loran C.Ellen Schrager Kemp Abstract Pages: 117 - 130
Computerization of specimen data from the Edward Lee Greene Herbarium (ND-G) at Notre Dame Theodore J. Crovello OriginalPaper Pages: 131 - 141
Studies in Stryphnodendron (Leguminosae: Mimosoideae) including two new taxa Enrique Forero OriginalPaper Pages: 143 - 147
Abronia macrocarpa (Nyctaginaceae): a new species from Texas Leo A. Galloway OriginalPaper Pages: 148 - 149
Moonflowers, Ipomoea section Calonyction, in temperate North America Charles R. Gunn OriginalPaper Pages: 150 - 168
Notes on Stictocardia campanulata (L.) Merrill and S. Jucunda (Thw.) C. R. Gunn (Convolvulaceae) Charles R. Gunn OriginalPaper Pages: 169 - 176
A biosystematic analysis of the Caltha leptosepala (Ranunculaceae) complex in the Rocky Mountains I. Chromatography and cytotaxonomy Michael I. Morris OriginalPaper Pages: 177 - 188
The volatile oils of Ambrosia (Compositae: Ambrosieae) Willaed W. PayneRainer W. ScoraJunji Kumamoto OriginalPaper Pages: 189 - 198
A new Phacelia (Hydrophyllaceae) from southern Nevada James L. RevealLincoln Constance OriginalPaper Pages: 199 - 201
Revision of Stenotaphrum (Gramineae: Paniceae) with attention to its historical geography Jonathan D. Sauer OriginalPaper Pages: 202 - 222
Re-establishment of the genus Prenanthella Rydb. (Compositae: Cichorieae) A. Spencer Tomb OriginalPaper Pages: 223 - 228
Systematic study of the Altissimae and Giganteae species groups of the genus Vernonia (Compositae) Lowell E. Urbatsch OriginalPaper Pages: 229 - 238
