The vascular plant collections of R. S. Williams from Bolivia and Peru (1901–1902) Laurence J. Dorr OriginalPaper Pages: 211 - 239
A revision of epidendrum subgenus epidanthus (Orchidaceae) Kerry Barringer OriginalPaper Pages: 240 - 252
A striking, new species of Roupala (Proteaceae) from the Venezuelan Andes Laurence J. Dorr OriginalPaper Pages: 261 - 263
Compositae of the Guayana Highland—IV. A new species of pentacalia (Senecioneae) from Cerro de la Neblina, Venezuela John F. Pruski OriginalPaper Pages: 264 - 268
Notable collections represented in the Truman G. Yuncker Herbarium (DPU), now deposited at The New York Botanical Garden (NY) Barbara Meurer-Grimes OriginalPaper Pages: 269 - 276
