Henry Hurd Rusby: The father of economic botany at the New York Botanical Garden David E. WilliamsSusan M. Fraser Articles Pages: 273 - 279
New taxa and combinations in Protium Burm. f. Studies in neotropical Burseraceae VI Douglas C. Daly Articles Pages: 280 - 299
Two new species of Viola (Violaceae) from the Intermountain West, U.S.A. Noel H. Holmgren Articles Pages: 300 - 305
Five new species of pteridophytes from Oaxaca, Mexico John T. MickelIván A. Valdespino Articles Pages: 312 - 321
Cladonia petrophila, a new species from eastern North America Richard C. Harris Articles Pages: 326 - 330
Additions to Anacardium (Anacardiaceae). Anacardium amapaënse, a new species from French Guiana and eastern Amazonian Brazil John D. Mitchell Articles Pages: 331 - 338
Paranapiacabaea paulista, a new genus and species of Sematophyllaceae from southeastern Brazil William R. BuckDaniel M. Vital Articles Pages: 339 - 343
Clarification and review of Lepidopilum affine and L. grevilleanum (Callicostaceae) Steven P. Churchill Articles Pages: 350 - 355
A previously unrecognized Isidrogalvia (Liliaceae) from Bolivia Robert W. CrudenLaurence J. Dorr Articles Pages: 368 - 369
A new combination in Spermacoce (Rubiaceae) and lectotypification of Borreria terminalis John T. KarteszKancheepuram N. Gandhi Articles Pages: 370 - 371
Neotropical floristics and inventory: Who will do the work? Scott A. Mori Commentary Pages: 372 - 375
Sharpening Occam’s Razor: An attempt to apply parsimony to competing hypotheses Paolo CaputoDennis Wm. StevensonAldo Moretti Commentary Pages: 376 - 382
