Systematic studies on mexican coreopsis (compositae). Coreopsis mutica: Flavonoid chemistry, chromosome numbers, morphology, and hybridization Daniel J. Crawford OriginalPaper Pages: 93 - 111
Six new species of melampodium (compositae: Heliantheae) from Mexico and Central America Tod F. Stuessy OriginalPaper Pages: 112 - 124
Phytoserological systematic survey of the caprifoliaceae Gary R. HillebrandDavid E. Fairbrothers OriginalPaper Pages: 125 - 133
A biosystematic study of the eupatorium rotundifolium complex (Compositae) James D. MontgomeryDavid E. Fairbrothers OriginalPaper Pages: 134 - 150
A new ribbon-leaved aquatic bulrush in madagascar (Cyperaceae: Scirpus) Alfred E. Schuyler OriginalPaper Pages: 151 - 153
Panicum shastense (gramineae), a sterile hybrid between P. Pacificum and P. Scribnerianum Richard W. Spellenberg OriginalPaper Pages: 154 - 162
Taxonomic significance of floral pigments in linum (Linageae) David E. GiannasiC. Marvin Rogers OriginalPaper Pages: 163 - 174
Chromosome numbers in chelone (Scrophulariaceae) T. S. CooperriderG. A. McCready OriginalPaper Pages: 175 - 183
Three new species of galium (rubiaceae) from Baja California Lauramay T. Dempster OriginalPaper Pages: 184 - 190