1. The continuing evolution of weeds

   • Herbert G. Baker

   OriginalPaper Pages: 445 - 449

2. The Zanzibar clove industry

   • Peter J. Martin

   OriginalPaper Pages: 450 - 459

3. The 1991 Jesse M. Greenman Award

   Announcement Pages: 459 - 459

4. Collection ofAvena Macrostachya Bal. Ex Coss. et Dur. (Poaceae) germplasm in algeria

   • L. Guarino
   • H. Chadja
   • A. Mokkadem

   OriginalPaper Pages: 460 - 466

5. Native and exotic species of dioscorea used as food in brazil

   • Edison P. Chu
   • R. C. L. Figueiredo-Ribeiro

   OriginalPaper Pages: 467 - 479

6. Fiber properties of several species of agavaceae from the Southwestern United States and Northern Mexico

   • Steven P. McLaughlin
   • Susan M. Schuck

   OriginalPaper Pages: 480 - 486

7. The botanical origin of Scented Myrrh (Blssabol or Habak Hadi)

   • Mats Thulin
   • Per Claeson

   OriginalPaper Pages: 487 - 494

8. Announcement

   Announcement Pages: 494 - 494

9. Ethnobotany of Ferocactus histrix and echinocactus platyacanthus (Cactaceae) in the Semiarid Central Mexico: Past, Present and Future

   • Rafael F. del Castillo
   • Sonia Trujillo

   OriginalPaper Pages: 495 - 502

10. Relationship of Cob characters with Grain Morphology in Maize (Zea mays, Poaceae)

    • T. Srinivas
    • M. K. Bhashyam
    • H. V. Narasimha

    OriginalPaper Pages: 503 - 510

11. Ethnobotany ofClitoria (Leguminosae)

    • Paul R. Fantz

    OriginalPaper Pages: 511 - 520

12. Notes on economic plants

    • Jaime Diaz
    • Fermin de la Puente
    • Daniel F. Austin

    BriefCommunication Pages: 521 - 521

13. Notes on economic plants

    • Armando Cáceres
    • Virginia Freire
    • Guillermo Pacheco

    BriefCommunication Pages: 522 - 523

14. Books received

    Announcement Pages: 524 - 525

15. Economic Botany Policies and Manuscript Requirements

    Announcement Pages: 540 - 541