This issue of BRITTONIA is dedicated to TRUMAN GEOGRE YUNCKER and ETHEL CLAFLIN YUNCKER on the 70th anniversary of their arrival at DePauw University Announcement Pages: 189 - 191
Foreword to Truman G. Yuncker Festschrift Patricia K. HolmgrenNoel H. Holmgren EditorialNotes Pages: 192 - 192
Tributes to Truman G. Yuncker and Ethel Claflin Yuncker Horace L. BarnettFredrick L. BergmannHoward Youse Announcement Pages: 236 - 284
Index to collectors of the piperaceae represented in the T. G. Yuncker Herbarium of DePauw University Barbara Meurer-Grimes OriginalPaper Pages: 285 - 296
Piperaceae types from the T. G. Yuncker Herbarium (DPU) now filed in the New York Botanical Garden Herbarium (NY) Ricardo CallejasDavid M. Johnson OriginalPaper Pages: 297 - 324
Studies in Neotropical Piperaceae I. A new species of Piper from Ecuador Ricardo Callejas OriginalPaper Pages: 325 - 327