Eupatorium godfreyanum (Asteraceae), a “new” species from eastern United States Arthur Cronquist OriginalPaper Pages: 237 - 242
New species of Habracanthus (Acanthaceae) from Ecuador Dieter C. Wasshausen OriginalPaper Pages: 243 - 251
The Chemistry of Allelopathy: Biochemical Interactions among Plants P. Mick Richardson Book Review Pages: 251 - 251
Morphologic and cytotaxonomic evaluation of Lomatium tuberosum (Apiaceae) Joy D. MastrogiuseppeSteven J. GillGregory K. Brown OriginalPaper Pages: 252 - 260
The proliferous species of Elaphoglossum (Elaphoglossaceae) and their relatives John T. Mickel OriginalPaper Pages: 261 - 278
Comments on the cladistic approach to the phylogeny of the “bryophytes” by Mishler and Churchill Harold Robinson OriginalPaper Pages: 279 - 281
Cladistics and the land plants: A response to Robinson Brent D. MishlerSteven P. Churchill OriginalPaper Pages: 282 - 285
Three new species of Elleanthus (Orchidaceae) from Central America Kerry Barringer OriginalPaper Pages: 286 - 290
Ecology and evolutionary biology: A round table on research. Edited by George W. Salt P. Mick Richardson Book Review Pages: 290 - 290
Studies in tropical American Leguminosae—IX Richard S. Cowan OriginalPaper Pages: 291 - 304
A new species of Eucrosia and a new name in Stenomesson (Amaryllidaceae) Alan W. Meerow OriginalPaper Pages: 305 - 309
Phytochemical methods. Second edition. By J. B. Harborne P. Mick Richardson Book Review Pages: 309 - 309
Petrogenia as a synonym of Bonamia (Convolvulaceae), with comments on allied species Daniel F. AustinGeorge W. Staples OriginalPaper Pages: 310 - 316
A new species of Gleasonia (Henriquezieae: Rubiaceae) from Brazilian Guayana Brian M. boom OriginalPaper Pages: 317 - 319
A note on the unusual stipules in Gleasonia prancei (Rubiaceae) George K. Rogers BriefCommunication Pages: 320 - 320
A new Penstemon (Scrophulariaceae) from northwestern Nevada David M. Danley OriginalPaper Pages: 321 - 324
Otto Kuntze, botanist. V. Type specimens of Asteraceae described in his Revisio Generum Plantarum Mark Allen WetterThomas A. Zanoni OriginalPaper Pages: 325 - 340
Mosses of the Gulf South from the Rio Grande to Apalachicola. By William D. Reese Inés Sastre-De Jesús Book Review Pages: 340 - 340