1. New species of Cuphea (Lythraceae) from Mexico

   • Shirley A. Graham

   OriginalPaper Pages: 1 - 10

2. Studies in the Eupatorieae (Compositae) VI

   • R. M. King

   OriginalPaper Pages: 11 - 12

3. Notes on Eriogonum-IV. A revision of the Eriogonum deflexum complex

   • James L. Reveal

   OriginalPaper Pages: 13 - 33

4. Biosystematic evidence for hybridization between Arctostaphylos nissenana and A. viscida

   • Rudolf Schmid
   • Thomas E. Mallory
   • John M. Tucker

   OriginalPaper Pages: 34 - 43

5. The relationship of terpene composition, morphology, and distribution of populations of Bursera microphylla (Burseraceae)

   • H. A. Mooney
   • W. A. Emboden

   OriginalPaper Pages: 44 - 51

6. Revision of Jaegeria (Compositae-Heliantheae)

   • Andrew M. Torres

   OriginalPaper Pages: 52 - 73

7. Phycological notes III. New records of marine algae from the central tropical Pacific Ocean

   • George J. Hollenberg

   OriginalPaper Pages: 74 - 82

8. Hybridization between Arctostaphylos viscida and A. canescens in Oregon

   • Leslie D. Gottlieb

   OriginalPaper Pages: 83 - 93

9. Emeritus biologists program of the American Institute of Biological Sciences

   Announcement Pages: 94 - 94