1. Notes on the Brazilian senecioneae

   • Angel Lulio Cabrera

   OriginalPaper Pages: 53 - 74

2. A report on the plants of the phelps Cerro Yaví expedition of 1947

   • Tobias Lasser
   • Bassett Maguire

   OriginalPaper Pages: 75 - 90

3. A revision of cercocarpus

   • Floyd L. Martin

   OriginalPaper Pages: 91 - 111