Review of the Neotropical Isertieae (Rubiaceae) M. Cristina García Kirkbride OriginalPaper Pages: 313 - 332
A Revision of the genus Wislizenia (Capparidaceae) based on population studies Sue Keller OriginalPaper Pages: 333 - 351
A New euglossine-pollinated species of Dalechampia (Euphorbiaceae) from Mexico Grady L. WebsterW. Scott Armbruster OriginalPaper Pages: 352 - 357
Subgeneric and sectional names for Intermountain Penstemon (Scrophulariaceae) Noel H. Holmgren OriginalPaper Pages: 358 - 364
Three new species of Eryngium (Umbelliferae) from tropical South America Lincoln Constance OriginalPaper Pages: 365 - 372
New taxa and combinations in Siphonoglossa (Acanthaceae) James HenricksonRichard A. Hilsenbeck OriginalPaper Pages: 373 - 378
A revision of the moss genus Trachyphyllum Gepp (Thuidiaceae) William R. Buck OriginalPaper Pages: 379 - 394
Macromitrium crumianum (musci: orthotrichaceae), a new species from guatemala William C. SteereWilliam R. Buck OriginalPaper Pages: 395 - 398
Systematic implications of flavonoid pigments in the fern genus hemionitis (adiantiaceae) David E. GiannasiJohn T. Mickel OriginalPaper Pages: 405 - 412
An overlooked new species of Smilax (Smilacaceae) from Northern California G. Ansley Wallace OriginalPaper Pages: 416 - 421
A new species of Ceratozamia (Cycadaceae) from San Luis Potosí Garrie P. LandryMarcia C. Wilson OriginalPaper Pages: 422 - 424
Remarks on the article by Karl J. Niklas: “Theoretical evolutionary rates in plant groups and the fossil record” K. Trincher OriginalPaper Pages: 425 - 427
Information, entropy, and the evolution of living systems Karl J. Niklas OriginalPaper Pages: 428 - 430
Notes from the New York Botanical Garden Herbarium I. The Herbarium of Warren H. Lewis Eileen K. Schofield OriginalPaper Pages: 431 - 432
