The affinities of Lithophytum: A transfer from Solanaceae to Verbenaceae William G. D’ArcyRichard C. Keating OriginalPaper Pages: 213 - 225
Generic delimitations of Central American Bignoniaceae Alwyn H. Gentry OriginalPaper Pages: 226 - 242
The genus Hymenoclea (Compositae: Ambrosieae) Kathleen M. PetersonWillard W. Payne OriginalPaper Pages: 243 - 256
A revision of the West Indian species of Lepanthes (Orchidaceae). III. Cuba Henry A. Hespenheide OriginalPaper Pages: 257 - 283
Reevaluation of the biological status of Juniperus Deppeana var. sperryi Correll Robert P. Adams OriginalPaper Pages: 284 - 289
A new Hibiscadelphus (Malvaceae) from Kauai L. Earl BishopDerral Herbst OriginalPaper Pages: 290 - 293
Biosystematics of Aletris lutea Small, Aletris obovata Nash, and natural hybrids (Liliaceae) Victoria I. Sullivan OriginalPaper Pages: 294 - 303
A new species of Byrsonima (Malpighiaceae) from Panama Walter H. Lewis OriginalPaper Pages: 304 - 306
Report of the committee for recommendations in desirable procedures in Herbarium Practice and Ethics, II Lorin I. Nevling Report Pages: 307 - 310
Note on the type of Rubia acuminata Martens & Galeotti Lauramay T. DempsterJepson Herbarium Announcement Pages: 313 - 313