The herbarium of the “Centro de Pesquisas do Cacau” at Itabuna, Brazil Scott A. MoriLuiz Alberto Mattos Silva OriginalPaper Pages: 177 - 196
Cytological and reproductive differentiation in sedum section gormania (crassulaceae) Melinda F. Denton OriginalPaper Pages: 197 - 211
Flavonoid chemistry of arceuthobium (viscaceae) Daniel J. CrawfordFrank G. Hawksworth OriginalPaper Pages: 212 - 216
New penstemons (scrophulariaceae) from the intermountain region Noel H. Holmgren OriginalPaper Pages: 217 - 242
On the distribution of Rostkovia magellanica (Juncaceae), a species newly rediscovered in Ecuador Henrik Balslev OriginalPaper Pages: 243 - 247
Autogamy in the American strain of witchweed, striga asiatica (scrophulariaceae) Daniel L. NickrentLytton J. Musselman OriginalPaper Pages: 253 - 256
A new arenaria (Caryophyllaceae) from the cumberlands of Tennessee B. Eugene WoffordRobert Kral OriginalPaper Pages: 257 - 260
Astragalus columbianus (Leguminosae)-Rediscovery of an “extinct” species Ronald H. SauerJoy D. MastrogiuseppeRobert H. Smookler OriginalPaper Pages: 261 - 264
The taxonomic affinities of Haplopappus linearifolius (Asteraceae-Astereae) Lowell E. UrbatschJames R. Wussow OriginalPaper Pages: 265 - 275
The identity of Alisma boliviana Rusby (Alismataceae) Lauritz B. Holm-Nielsen OriginalPaper Pages: 276 - 278
A new variety of galium arkansanum (Rubiaceae) endemic to the Ouachita Mountains of Arkansas Edwin B. Smith OriginalPaper Pages: 279 - 283
Studies in the cyperaceae of Thailand II. Miscellaneous taxa of fimbristylideae, rhynchosporeae, scirpeae and sclerieae Tetsuo Koyama OriginalPaper Pages: 284 - 293
The taxonomic status of Polystachya foliosa (orchidaceae) in The Bahama Islands Ruben P. SauledaRalph M. Adams OriginalPaper Pages: 294 - 297
The genus sidastrum E. G. Baker (Malvaceae): A correction Paul A. Fryxell OriginalPaper Pages: 298 - 298
